JPH01119223A - Method and apparatus for discharging filth from dish washer - Google Patents

Abstract

PURPOSE: To efficiently and rapidly remove dirt by a method wherein fluid from a washing tank is recirculated through a fluid detour circulation path and is passed through a high density filter in the passage. CONSTITUTION: In order to remove dirt from tablewares, circulation means 57-59 and spraying means 67 and 68 for recirculating and spraying fluid on the tablewares placed in a washing tank 55 are provided and discharging lines 58 and 61 are connected with the circulation means for discharging the fluid from an apparatus. In addition, the fluid from the tank 55 is recirculated through a fluid detour circulation path 72 provided separately from the tank 55 and is returned to the tank 55 independently from the original spraying means. In addition, when the fluid is circulated through the circulation path 72, all the fluid is passed through a high density filter 90 provided in the passage to remove the dirt from the fluid and is collected and held. In addition, when the circulation means and the discharging lines are operated so as to discharge the fluid from the apparatus, the collected dirt is forcibly discharged through the discharging lines.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to dishwashers, and particularly to dishwashers for domestic use. The tableware is cleaned in such a machine by subjecting it to a repeated operating cycle or machine cycle of one or more washing and rinsing periods controlled by a timer or control means. During the cleaning period, water and detergent are introduced into the washing tank of the dishwasher, and such washing liquid is delivered to the tableware by means of a rotating washing arm device, i.e. a recirculation pump which pumps the washing liquid through the nozzles of the injection means. It is sprayed by applying pressure to the top. At the end of each cleaning period, the contaminated i-purifying solution is drained. During the rinsing period, only clean water is introduced into the wash tank, and this rinsing liquid is also recirculated before being sprayed onto the dishware and drained. Usually several rinsing operations are required.

Such machines generally have several different operating modes or operating cycles, each operating cycle depending on the degree and amount of dirt or type of dirt being cleaned. consists of a suitable number of washing and rinsing periods. For example, in a dishwasher such as that shown in U.S. Pat. No. 3,549,294, an operator can select wash and rinse periods for any number of times and for any length of time. In the above dishwasher, the normal wash (Nor + aal wash) is used to wash relatively clean dishes, dishes, or dinner tableware, and the immersion wash (Sa&kWash) is used for washing food, bread baking, etc. Used to remove hard-on burnt residue from pots, 7-raibans, or steaming pots.

Of course, the total amount of dirt removed during any particular operating cycle will depend on the number of dishes placed in the dishwasher, and before the operator places them in the dishwasher. Although it depends on how much leftover food is discarded from dishes, soak cleaning is usually expected to remove more dirt than regular washing, so soak cleaning is usually There may be more cleaning and/or rinsing periods than cleaning.

The need for multiple washing and rinsing engines is due to the use of one washing tank, circulation system and injection system for both the washing and rinsing aspects of the dishwashing operation. No matter how well the fluid is filtered during use, it still collects food particles (filth).
It is unavoidable that some of the liquid will be mixed into the fluid and will be continuously passed through the recirculation pump and injection system while the fluid is being injected onto the dishware.

Many of these soils end up being redeposited onto the tableware that has been washed and/or rinsed. Also, some are on the back side of the wall of the cleaning tank.
Alternatively, it remains in the recirculation pump and wash arm equipment. During the rinsing period, fresh water is introduced into the fluid, injected, and drained so that fewer and fewer fine contaminants are present and less and less re-deposition takes place. To repeat,
This will solve this reattachment problem.

There are two basic methods or types of domestic dishwashers. The first is that the cleaning arm device is equipped with a small orifice (typically 4 mm in diameter) that initially pumps the fluid so that it can be jetted onto the dishware using a fairly high-pressure pump. The idea is to remove the waste from the body through a fine filter and store it away. Without a dense filter, such small orifices can become clogged and high injection pressures and velocities cannot be reliably achieved, making it impossible to use small orifices and corresponding pumps. Therefore, small orifice/high pressure systems typically require dense filters for the purpose of removing contaminants from the fluid rather than for recirculating the fluid for use. Such systems typically use two pumps. one for filtering the fluid passing through the washing arm device, the other for draining the water and collected dirt together at the end of the washing or rinsing period, the latter is basically placed upstream of the filter.

Another method or type of dishwashing is to use only one pump for both spraying and draining. It does not have a dense filter to capture and remove dirt from the recirculating fluid. The dirt will then be continuously recirculated, unless of course the dirt is too large to interfere with the operation of the pump and injection system. When filth is so large that it interferes with the operation of the pump and injection system, it must be removed manually each time. The orifice of the wash arm device without a filter needs to have a large diameter (typically 7 am diameter) so that large dirt can pass through and no clogging occurs. Therefore, a large amount of fluid will be pumped, but usually at a low pressure. Due to the absence of a filter in the circulation system, the waste is continuously recirculated with the fluid and is therefore subject to repeated forces in the fluid, which forces use higher density filters. It is broken down and disassembled into smaller pieces more quickly than other systems. This creates a large amount of fine dirt in the fluid, and unless the rinsing period is proportionally greater than the number of times in systems employing high-density filters, dishes and tableware will be washed away. It becomes difficult to remove it from the cleaning tank.

However, even systems employing high density filters require that the recirculating fluid flow through the dirt captured by the filter. When the dirt is severe, the filter becomes partially clogged and fluid stops flowing through one part of the filter.
Full and effective operation of the recirculation and injection systems is hindered. Therefore, it is preferable to remove as much dirt as possible independently of the recirculation and injection systems. This not only prevents clogging of the recirculation and injection systems, but also prevents decomposition and emulsification of the dirt collected in the filter section, as the vigorous swirling of the fluid continuously agitates the dirt collected in that section. is minimized.

The general principles of waste removal can be found in a wide range of other fields. For example, in a machine that uses lubricating oil, such as an internal combustion engine, the lubricating oil is circulated through the machine, and a portion of the oil is passed through a bypass filter (oil filter).

In this way, the lubricating oil and the engine or machine have their own effective capacity extended. Similarly, in fabric washing techniques, supplementary circulation channels are often provided, and liat filters are provided in the channels for subsequent removal.
) to allow some water to pass through.

Thus, the more dirt can be removed from the initial recirculation and injection systems in the dishwasher, the faster the dirt can be completely removed and the longer the washing and/or rinsing periods can be. There are fewer
Therefore, less hot water is required. Furthermore, by "extending" the effective usage period of water, the total amount of hot water required in each period can be reduced. As a result, both in the amount of water consumed in each washing or rinsing period and in the total number of periods,
Significant energy and resource savings can be achieved.

The prior art relating to domestic dishwashers, including various filter embodiments, has sought to take advantage of the above discussion by providing bypass filters.

However, they are only partially effective within the shell, require operator assistance, or both. Such systems preferably remove large as well as small wastes from the recirculation and injection systems as quickly as possible (without them first passing through the recirculation injection system itself), and are primarily It is preferable to sweep dirt completely into the drain while draining fluid from the dishwasher without intervention or assistance.

Briefly, the present invention drains the cleaning and rinsing solutions from the bottom of the cleaning tank and passes through a detour dirt collector;
The above needs and objectives are met by providing an inexpensive and effective fluid bypass circuit for returning filtered fluid (including fine suspended particles) to the dishwasher bath. That's what I did.

The fluid detour circuit is arranged separately from and bypassing the first injection means provided in the cleaning tank. That is, a typical domestic dishwasher has one or more wash arm devices that receive pressurized wash and rinse liquid from a recirculation pump. In such an arrangement, the wash arm device becomes the initial injection means, since it is responsible for supplying the pressurized fluid for washing and rinsing the dishes. Some dishwashers also include other spray means or sprinklers to aid in initial operation. This means that although the manufacturer of the dishwasher considers the primary jetting means to be essential, the secondary jetting means are not essential but can be an aid to a satisfactory dishwashing operation. This is probably because he thinks so.

In the embodiment described above, the dishwasher has a circulation system with two pumps: a recirculation pump and a drain pump. Therefore, the recirculation pump and first wash arm arrangement and the drain pump and dirt collector provided in the fluid bypass circuit are independent. This invention is just one
It can also be used for dishwashers with only one pump, but when two pumps are used, the recirculation pump is not required to provide fluid for the waste collector in the fluid bypass circuit. do not have. Instead, the high-pressure cleaning and rinsing fluids are supplied only to the scrubbing arm device, and the drain pump independently supplies fluid to the fluid bypass circuit and through the waste collector for cleaning. It is used for returning to the tank.

The filth collector was installed at 14 to remove the filth from the wash tank as quickly as possible; second, to keep the filth out of the wash tank; and third, fluid was injected from the wash arm device. In order to protect the dirt from the emulsification and decomposition effects that are sometimes present in the cleaning and rinsing liquids in the cleaning tank, they are placed in a fluid bypass circuit that is separate from the cleaning tank. In this sense, it can be said that the waste collector is inside the wash tank of the actual wash tank, insofar as it forms a protected space or a protected space (a part that is separated from the rest of the wash tank). can.

In that case, no tableware can be placed in the space of the dirt collector, so that the space of the dirt collector cannot form part of the space of the washing tank. Instead, the size of the cleaning tank is actually larger than the size of the space in the cleaning tank. However, in order not to reduce the effective space of the washing tank, it is better to locate the dirt collector completely outside the washing tank of the dishwasher.

In an embodiment, the inlet to the fluid bypass circuit is provided at the bottom of the wash tank. Dishwashers typically have a sump and the inlet to the fluid bypass circuit is located at the bottom of the sump. Since much of the dirt washed off the dishware tends to settle and collect at the bottom of the wash tank, the fluid diversion circuit and dirt collector can quickly remove this dirt. In fact, the total amount of dirt removed is proportional to the amount of fluid passed through the dirt collector of the fluid bypass circuit for this very reason.

Another advantage of having the fluid bypass circuit independent of the initial injection system is that the fluid bypass circuit and dirt collector can receive and remove large dirt that cannot be placed into the injection system. It is. If large contaminants were to enter the injection system, the injector orifices would receive the contaminants and quickly become clogged. In contrast, the fluid bypass circuit and dirt collector can receive dirt that is large enough to block the drain of the dishwasher and prevent it from entering the orifice.

However, it is also an advantage of the invention that the invention can also be used for dishwashers with only one pump.

In that case, the outlet of the recirculation pump would be split into two. The larger pipe is connected to the first injection system, while the smaller bypass pipe is connected through a fluid bypass circuit to the dirt collector and, independently of the first injection system, directly to the cleaning tank. is connected to. In this way, 1
In systems with only one pump, the size of the waste intake is limited, but the fact that it can be used in systems with only one pump means that
Incidentally, this can be considered as one advantage. The wash arm arrangement and dirt collector are each utilized independently of the other as efficiently as possible so that dirt is removed and separated as quickly as possible.

The waste collector operates in two modes. One is a filth collection mode and the other is a filth removal mode. In waste collection mode, the cleaning and rinsing liquids flow through the waste collector (
The dirt is removed from the fluid, collected, and then drained from the dishwasher. ). In the waste removal mode, the collected waste is discharged from the waste collector. Whenever the dishwasher's drain system is draining cleaning or rinsing liquid through the drain pipe, the waste collector is in waste removal mode. When draining occurs, the waste collector discharges the collected waste so that the waste is removed directly through the drain pipe. At other times when cleaning and rinsing liquids are being circulated through the dishwasher, the dirt collector is in a dirt collection mode to provide simultaneous and continuous cleaning of the fluids by the dirt collector.

In a preferred embodiment, the filth collector includes an upwardly opening filth collector body, the filth collector body being mounted below an opening also provided in the bottom of the wash tank. ing. The high-density filter is mounted on the hole of the waste collector, that is, the surface between the waste collection chamber and the opening of the cleaning tank, and the high-density filter and the hole of the waste collector forms a waste storage chamber for storing waste. As discussed below, fluid circulating in the fluid bypass circuit is forced through a high density filter. Thus, the high density filter acts as a separation means to separate dirt from the fluid. The high density filter also serves as a fluid outlet for the waste collector.

The waste collector has a fluid inlet and a waste outlet, both of which are inserted into a hole or conventional opening in the bottom of the waste collection chamber. Further, the bottom of the hole-shaped portion is sloped so as to become lower and lower toward the normal opening.

The fluid inlet is joined to the waste outlet, and they are shaped like a venturi so that when fluid flows through the fluid inlet and the venturi, a slight negative pressure is created at the waste outlet. . This acts as a fluid check valve that utilizes no moving parts and retains collected waste within the waste collection chamber while the waste collector is in waste collection mode. When it is time to drain the dishwasher, the switching valve switches the outlet of the drain pump from the waste collector fluid inlet to the dishwasher drain line.

When this venturi stops working and the water level in the dishwasher becomes low, i.e. at low water levels, the fluid in the waste collection chamber flows out through the waste outlet, taking with it the collected waste. I will carry it.

The filth outlet opens directly on the side opposite to the inlet of the sump pump so that sewage can be carried along with the fluid flowing into the sump pump. By having such a structure,
Instead of dispersing the waste into the cleaning tank, it is transported directly outside through the drain pipe. When waste is being discharged through the drain, the high-density filter is flushed with one of the cleaning arms directed against the top surface of the high-density filter.
Cleaned by spray jets installed in the

1. - Such a device K [similar is U.S. Patent No. 4.038
, No. 103.

If the machine operator interrupts its operation during the cleaning or rinsing period, thereby stopping the pump, the waste collector body remains below the normal static water level in the cleaning tank. It is located in At this time, since there is no movement of the fluid into and out of the filth collector immersed in the fluid, the collected filth remains in the filth collection chamber. On the other hand, when the washing and rinsing liquids are completely drained from the dishwasher, the fluids are also completely drained from the waste collector, which may cause bacteria to form during the dishwashing process. ” will not be left behind at all.

If clumps of dirt get into the dishwasher, they will be too large for the re-1lliFR system and injection system, and some will be too large for the drain bob and fluid bypass circuit waste collector (too large). Also, regardless of its size K, the waste removed by the waste collector in the fluid bypass circuit is not done all at once. and a relatively high-density filter is placed at the inlet of the wash arm device.Such a filter essentially prevents the jets in the wash arm device from becoming clogged with dirt.
/l'fii'FJ, but not to control undesirable re-deposition. This is 5K
, the filter provided in the recirculation system does not materially interfere with the operation of the primary injection system.

Drainage systems can accept larger amounts of waste than recirculation systems, but there is an upper limit. Therefore, a waste crusher or waste disposal machine (disposer) is installed at the inlet of the drain pump to crush large waste into smaller pieces and safely discharge them outside through the drain pipe. Samakura. The finely crushed waste is pumped directly into the waste collection chamber by a pump and then captured by a very dense filter (13 cm in diameter) as described above. The drain pump and disposer are operated continuously when washing or rinsing dishes (while the fluid is being recirculated). It is possible to maximize the disposer's work of crushing or reducing the size of the waste.Furthermore, since the disposer is placed in the fluid bypass @ ring path upstream of the waste collector, it is possible to crush the waste into small pieces. The collected waste passes through the waste collector only once. This reduction and removal of the waste occurs as soon as the fluid is jetted onto the utensils and the period of washing the waste from there begins. This, in turn, takes place throughout the morning, thereby allowing for more effective waste miniaturization than in systems where operation of the disposer is effectively limited to short drainage periods. .By circulating the fluid through the detour circuit after the filth has been reduced in size.

Since the filth is rapidly removed, there is no need for unnecessary and rapid decomposition compared to simply reducing the size of the filth and shielding it. The role of an auxiliary pump arises through which the waste flows directly into the waste collection chamber. This auxiliary pumping action of the venturi further increases the dirt removal rate.

The present invention thus provides a highly effective and rapid means of dirt removal independent of the initial injection system.

The basic features of the present invention are as follows.

Firstly, the waste is separated from the recirculating washing or rinsing liquid: the waste washed away by the initial dishwashing operation is collected in situ; the collected waste is then discharged into a drain, preferably; teeth.

applying positive pressure with a pump to force the waste into a recessed drain pipe or a disposer connected to the recessed drain pipe;
At the same time, clean the waste collector for next use. This second collection of dirt improves the efficiency of the recirculation pump and provides a better cleaning effect. Redeposition is substantially reduced and water usage is also saved. The collected filth is forcibly removed by switching to the filth removal mode. Removal of dirt is accomplished when the fluid is drained from the sump, ie at the end of the wash or rinse period. or.

In some embodiments, when a large tk of waste is collected even early in the cleaning period, only a small amount of water is drained from the sump and the waste is dumped into the drain.

As a result of the rapid removal of dirt, the present invention can eliminate one dish, pot, or frying pan with dirt on it in fewer cleaning and rinsing periods than conventional methods.

It is also possible to clean even in a heavily contaminated state. Water consumption can be saved by reducing the number of washing and rinsing periods (and by reducing the amount of water used during each period), and hot water. In some cases, the energy used to heat the water can essentially be reduced. Additionally, less water is used (although cleaning efficiency is improved).

Fortunately, some embodiments are self-cleaning without the need for moving parts and without the need for manual assistance. It also has durability even under adverse conditions. That is, even if the waste collection chamber of the waste collector body becomes completely full, the operation of the initial injection system is not disturbed. High-pressure cleaning and rinsing liquids are continuously sprayed onto the dishware in the wash tank, and the collected dirt is discharged into a drain at the end of a particular wash or rinse period. The check pulp in some embodiments acts as a safety valve to provide an upper limit to the pressure that develops within the waste collection chamber of the waste collector body under such overload conditions. Thus, no excessive pressure is generated in such embodiments to force the collected dirt through the dense filter.

Accordingly, it is an object of the present invention to provide an improved dishwasher. That is, a dishwasher is constructed as follows: A removal and collection system for directing fluid from the washing tank through a dirt collector, which is provided independently of the first injection system and separate from the washing tank. and a fluid bypass circuit thrown around it to retain the filth in its place and to return the fluid containing only fine suspended matter to the cleaning tank independently of the first injection means. the waste collector is operated in both a waste collection mode and a waste removal mode; the waste removal mode causes the collected waste to be discharged out through the drain pipe; The removed cleaning and rinsing liquid is re-infused and injected, so that the removed dirt is protected from decomposition and emulsification; the dirt is not passed through the initial injection means or forced into the washing Directly removed from the tank; To provide a long-life combination.In order to achieve the objects and problems mentioned above, the present invention provides an easy-to-use, versatile, and single unit. Whether using a pump or multiple pumps, it is designed to be applicable to a wide variety of dishwashing machines.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A dishwasher having a dirt collector in a fluid bypass circuit according to the present invention will be described in detail below with reference to one drawing.

Dishwasher50. For example, a domestic dishwasher includes a typical upper rack 517i and lower rack 52 for supporting tableware such as cups, trays, plates, silverware, etc. in the wash tank 54. The wash tank 54 defines a wash tank 55 which substantially consists of a back, bottom, side and top surfaces within the dishwasher 50 in which tableware to be washed and rinsed is placed.

The front side of the washing tank 55 is used during the washing and rinsing period of one tableware.

The cleaning tank 54 is closed (with a door (not shown)).

)K.

1 Dishwashing @ 50 as illustrated and described in more detail in U.S. Pat. No. 4,099/607.

In addition, the recirculation pump 5 is mounted coaxially on the normal drive shaft.
7. It includes fluid circulation means consisting of a drainage pump 58 and a drive motor 59. A water reservoir 6o provided at the bottom of the cleaning tank 54 constitutes a part of the cleaning tank 55, and a recirculation pump 57 and a drain pump 58 are arranged within this water reservoir 6o. The drainage pump 58 constitutes a part of a drainage system (drainage system), and the drainage system receives, for example, washing and rinsing liquids and drains the dishwashing equipment 5.
The bottom of the water reservoir part 60 has an opening provided at the bottom VC, through which water flows from the water tank 60 through a drain pipe 61 to a drain outlet attached to a typical house.

In the same implementation as shown in FIG.
The 0 inlet 63 (see FIG. 4) is also the inlet of the simultaneous washing and drainage system. The inlet 64 of the recirculation pump 57 (see FIG. 14) is located slightly above the drain pump inlet 63 in the sump 60.

The recirculation pump inlet 64 prevents extremely large debris from entering the recirculation pump 57 and clogging the jet orifices of the upper wash arm arrangement 67 and the lower wash arm arrangement 68, i.e., interfering with operation. It is protected by a filter 65 so that there is no dust. Cleaning arm device 6
7 and 68.

The first injection means for cleaning the dishes in the dishwasher 50 is connected to the outlet of the recirculation pump 57 by a suitable conduit. Now to explain about the dishwasher 50, some of the high-performance household dishwashers include:
It will be appreciated that a variety of well-known and standard components 51 can be seen.5 With reference to FIG. It includes a waste collector 70 that bypasses it. Filth collector 7
0 is one of the preferred embodiments according to the invention, in which a fluid bypass circuit section 73 is thrown separately from the cleaning tank 55.
It constitutes a part of the fluid detour circuit 72 including. In the embodiment shown in FIGS. 1 to 8, the fluid bypass circuit 72 includes a drain pipe 61 and a drain pump 58 for reliably guiding the fluid through the fluid bypass circuit 72. Drainage pump 580 population 63 (see Figure 4) is fluid bypass @ ring road 7
It also serves as an inlet for 2, and allows you to easily remove leftovers accumulated at the bottom of the washing Pf155.
C is substantially arranged at the bottom of the water reservoir section 60. A waste collector 70 having a waste collector body 75 is also partially disposed in the fluid bypass circuit 72 . As will be described below, the waste collector body 75 of the waste collector 70 has a fluid outlet for returning fluid to the wash tank 55. The fluid bypass circuit 72 thus directs the fluid flowing out of the cleaning tank 55 through the fluid bypass circuit 72 and is connected to the cleaning tank 55 and independently of the cleaning arm devices 67 and 68. The fluid is returned to cleaning tank 55.

The switching pulp 78 connects the flow path of the fluid that has passed through the drain pipe 61 and the outlet of the dishwasher 50, or
To select whether to switch the fluid that has passed through the drain pipe 61 to flow through the fluid bypass circuit 72 and then return it to the cleaning tank 55.

It is provided in the middle of the drain pipe 61. The switching valve 78 may be controlled by a timer (not shown) K which determines whether the fluid is switched to flow through the fluid bypass loop 72 or exited through the drain pipe 61. preferable. When the dishwasher 50 is in a wash or rinse period, the ring means, such as the recycle pump 57, are operated in a fluid recirculation mode that recirculates fluid and injects the fluid onto the dishware. In this mode, the switching pulp 78 is switched to 5 (see FIG. 7) such that the outlet of the drain pump 58 communicates with the fluid bypass circuit section 73 and the body 75 of the waste collector 70, and the waste collector 70 is A waste collection mode is entered in which leftover food scraps are removed from the circulating fluid and retained for disposal as described below. When the dishwasher 50 is in a drain period, the fluid @ring means is operated in a fluid drain mode. In this mode, the switching pulp 7
8 is operated at 5 to drain fluid out of the dishwasher 50 through the drain pipe 61 (FIG. 8), and the waste collector 70 is
As will be described later, the system enters a waste removal mode in which leftover food collected in the drainage system is thrown away.

Referring to FIG. 2, the filth collector body 75 of the filth collector 70 includes a hole-shaped portion, ie, a filth collection chamber 80, which opens upward, and the bottom opening 83 of the cleaning tank 55
It is attached to the bottom of the .

Bottom opening 83 is generally kidney-shaped and is described as an arc having a substantially constant angle from the vertical axis of rotation of lower irrigation arm device 68 . The bottom 84 of the hole-shaped portion 80 is sloped downwardly toward an opening 85, which is connected to the waste collector body 750.
Extends from one side. Fluid population 87 and waste outlet 88
This is a normal Sekiguchi section facing towards the area. High-density filter 90 provided between hole-shaped portion 80 and bottom opening 83
defines a fluid outlet from the waste collector 70.

A high density filter 90 is provided on the flow path of fluid flowing through the aperture 80 between the fluid population 87 and the fluid outlet defined by the filter itself.

The high-density filter 90 constituting the boundary of the hole-like part 80 in the waste collector body 75 therefore serves as a separation means for holding and accumulating the leftover food in the hole-like part, that is, the waste collection chamber 80. . On the other hand, fine suspended matter is removed by a high-density filter 9.
0 and is returned to the cleaning tank 55.

This is most clearly shown in Figures 6 and 7.
, the fluid port 87 and the waste outlet 88 are connected at a predetermined angle, and directly connected to the large part 80 around the normal opening 85. Both angles are selected such that when fluid is transferred from the fluid intake 87 to the waste collector body 75KE by the drain pump 58, the pressure at the fluid inlet 87 is slightly negative relative to the waste outlet 8EHC. -For a moment, the hole-like part 8
In normal operation, as shown in FIG. Fluid flows backwards.

In other words, it can be seen that the hole-shaped portion 80Vci plays the role of an auxiliary pump that causes a flow similar to that of a person. venturi 9
1 passes through the waste outlet 88 and enters the hole 80 as necessary.
VC! It is free to increase the role of the auxiliary pump, so as to substantially increase the backflow of fluid and dirt that enters, so that the proportion of dirt removed by the dirt collector 70 is higher.

As shown in FIG. 6, in the preferred embodiment of venturi 91, fluid inlet 87 is connected to waste outlet 87.
81C at a position 5 cr11 from the normal opening 85 and at an angle of approximately 30°. Fluid inlet 87
The diameter of is 1c! r1, the diameter of the waste outlet 88 is 2ctt+
and the drain pump 58 typically pumps the fluid to the fluid population 87.
It is necessary to circulate the air at approximately 350cIV'sec.

During the filth collection mode, fine suspended matter also passes through the high-density filter 90 and is re-entered into the cleaning tank 55. The shaken food waste is removed by the first cleaning arm device 6.
7 and 68 are collected inside the hole-like part 80 and on the back side thereof. Additionally, it allows the INK to remain in a relatively flow-quiet location within the hole 80, where it is subjected to decomposition, emulsification by recirculation, and initially to the cleaning arm device 6.
7°68 provides protection from washing or rinsing liquid sprayed onto the tableware. The capture and removal of food waste can be achieved using a leftover crusher or the aforementioned U.S. Pat. No. 4,097,3.
This is done by the leftover food disposal plate 9B in the drain pump 58, which is described in detail in No. 07. The fluid bypass circuit 72 allows the leftover plate 93 and drain pump 58 to continuously shred the leftovers during the cleaning and rinsing periods of the operating cycle.
This means that the operating period of the crosspiece processing machine is effectively limited by a predetermined drainage period, which means that it can perform effective crushing and have a larger number of units. This combination also reduces and removes waste from the cleaning tank 55 more quickly and rapidly (as well as the waste collector provided in the fluid bypass circuit) with only one passage through the waste disposal machine. This makes it possible to capture dirt more effectively and quickly.

When it is time to drain the washing or rinsing liquid from the dishwasher@50, the flow that has passed through the fluid bypass wIfR path section 73 and the waste collector body 75 is interrupted, as shown in the fluid flow diagram of FIG. The 11i exchange pulp 78 is then switched to allow the fluid to drain out of the dishwasher through the drain pipe 61. When the fluid in the cleaning tank 55 drains, the fluid and dirt in the hole 80 flow downward across the sloping bottom 84 (see FIG. 2) and through the opening 85 to the dirt outlet 881.
C flows in. The waste outlet 88 allows collected waste and fluid to flow from the hole 80 substantially into the inlet 63 of the drain pump 58.
A filth discharge port 92 is provided at a position where the filth and fluid are discharged when they flow into the water reservoir 60 adapted to the water tank 60.

A covering material 94 is provided between the waste discharge port 92 and the drain pump inlet 63.

The collected waste is minimized and guided to flow out from the hole-like part 80 directly through the drain pipe 61.

Referring to FIG. 2, an average quiescent water level 98 is depicted when recirculation pump 57 is stopped at the end of the wash support rinse period.

Approximately equal to the water level at which the fluid is visible. The water level 98 is also the water level that can be seen by the dishwasher operator when the machine is shut down during the washing and rinsing periods 1c of the machine's operation.As can be seen from Figure 2, the water level 98 is higher than the location of the fluid outlet of the waste collector body defined by the filter 90 of density.Thus, even in the event of such a machine stoppage, the waste collector body 75 and the hole 8
0 means that it remains completely immersed in water. This means that when there is such a machine stop, there is no fluid entering or exiting the waste collector 70 and the already collected waste is automatically retained in the hole 80.

On the other hand, when fluid is drained from the dishwasher through drain pipe 61, substantially all fluid is simultaneously drained from the waste collector. This is due to the sloped bottom 84 of the IK-shaped portion 80.
, and the opening 85 , the waste outlet 92 and the drain pump 5
8 (see FIG. 4).

That is, the filth discharge port 92 is located below the opening 85 and at the same height as the population 63 so that the fluid flows down from the hole-shaped body 80 into the drain pump 58. As they flow out, they carry the waste directly into the drain pipe 61 as described above.Fluid injection jets 99 (see FIG. 4) are directed to the bottom of at least one arm of the lower cleaning arm arrangement 68. A fluid ejection jet 99 is provided.

5. The fluid flows through the bottom opening 83 of the cleaning tank.
It is arranged to inject fluid onto the high density filter 90 of the waste collector. This causes at least a portion of the fluid in the dishwasher to pass through the hole 80 of the waste collector 70.
The drain pipe 61 allows the fluid to flow through the drain pipe 61, so that the collected dirt is discharged from the hole 80 to the drain pipe 61. That is, the inlet 64 to the recirculation pump 57 is located well below the average quiescent water level 98.

Thus, during draining, fluid continues to be utilized by the recirculation pump 57 population 64 until more than half of the fluid in the wash tank has been drained. Accordingly, recirculation pump 57 continues to operate during the initial portion of the drain period and fluid continues to be injected through the fluid injection jets, including fluid injection jets 99 of wash arm devices 67 and 68. Therefore, the fluid from the fluid jet 99 is transferred to the hole 80.
It helps to flush out the waste from the drain pipe 61 and drain it out of the dishwasher 50.

That means no. The pentieri 91 has a hole-shaped portion 8
Acts as a check pulp to retain the collected waste in the waste collection mode and prevent it from flowing out through the waste outlet 88 during the waste collection mode.

Also, in this manner, the waste outlet 88 is effectively "closed" without the use of moving parts. On the other hand, especially heavy dirt is mixed into the cleaning tank 55, and the hole-shaped portion 80
If it fills up quickly and reaches K, use a high-density filter 9.
Due to the partial disturbance of 0, pressure is created within it. It will be forced out through the increased pressure part. This is undesirable because dirt becomes entangled in filter 90 and is difficult to remove without manual assistance from a dishwasher operator. However, if the high-density filter 90 of the waste collector body 75 becomes clogged and cannot be passed through, the venturi 91 serves as a pressure relief means to release excess pressure through the waste outlet 88. This has five advantages.This is limited to cases where the pressure in the hole 80 is lower than the maximum pressure of the drain pump 58, but it is effective in preventing serious accidents such as pushing out waste from the high-density filter 90. prevent it from happening.

Finally, when the wash and rinse fluids are being recirculated through the dishwasher, the waste collector 70 is in waste collection mode, but the switching pulp 78 directs the fluid from the wash tank 55 to the drain 61.
It is clear that when the waste collector 70 is switched to waste removal mode, the waste collector 70 is in waste removal mode. then.

Since the waste collector 70 in the fluid bypass @ ring path does not collect any more waste, no matter how much alC the waste is in the dishwashing tank 50, it can be removed from there without any problem during the draining period of the cleaning or rinsing liquid. and excluded. This is a significant difference compared to conventional filter systems, which use continuous spraying by conventional injection means to capture and remove the filth just as the filth is washed away into the drain. It is an advantage.

A typical machine or operating cycle, such as that shown in FIG. 27, will be described further below, but an optional cycle, such as that shown in FIG. It is worth noting that it is particularly advantageous to use the N? Any dirt is quickly swept away and captured. Initially, the drain pump 58 and recirculation pump 58 are operated normally and the fluid is pumped into the wash tank 55 during the immersion period of the dishwasher's operating cycle. Since the drain pump 58 is preferably placed at the bottom of the water sump 60, the first water introduced into the cleaning tank 55 is transferred to the fluid bypass l1li. The filth collector 70 passes through the ring road 72
be brought inside. Venturi 91, which acts as a check pulp, quickly fills hole 80 with fluid. If the dishwasher 50 is switched to the fluid drain mode by stopping water input and operating the switching valve 8 before the water reservoir 60 starts to be filled, the hole 8
The water level at 0 will be much higher than that at the sump 60, and the fluid will flow out forcefully through the waste outlet 88.
It flows directly into the inlet 63 of the evacuation pump 58. That is,
The timer will provide the dishwasher 50 with a soak period that is qualitatively shorter than the average period provided during a normal wash or pampering period. First.

The timer activates the ring means. That is, the drain pump 5 is operated to fill the hole 80 with fluid from the above-mentioned low water level until it reaches K, and then the drain system is operated to discharge the fluid from the dishwasher 50. .

Figures 9 and 10 show the waste collector 7 of the fluid bypass circuit.
10 is a drawing of another embodiment 100 of a filth collector similar to the OVc. However, the waste collector 70 in that the waste collector 100 has a fluid inlet 103 that terminates at the location of the pressure relief spring 105 when connected to the waste outlet 106
The waste outlet 106 and the fluid inlet 103 are different from each other.

They are inserted through a conventional opening 111 into a waste collection hole or waste collection chamber 110. When the pressure relief jiyabara 105 is in the waste collection mode,
The fluid pressure applied by the drain pump 58 causes it to react to the fluid pressure through the fluid bypass circuit 72 and to the appropriate size and location to extend and seal the conventional opening 111. It is connected. The hole-shaped portion 110 and the high-density filter 112 are formed by the above-mentioned implementation 11.
Like the RJ, it serves as a separating means and a connecting means for the waste collector 100. As shown in Figure 10, when the element means is in the fluid drainage mode, and therefore when the waste collector 100 is in the waste removal mode, pressure is released from the pressure relief spring 105 and from the opening 111. You will have to move away and withdraw. This will allow the fluid and dirt collected in the holes 110 to exit through the dirt outlet 106 as the fluid is drained from the dishwasher 50.

FIGS. 11 to 13, like the two embodiments of FIGS. 14 to 10, are a third embodiment of a hydraulically connected fluid bypass @ ring path waste collector. As in the previously described embodiment, the waste collector 115 faces upwards with a high density filter 118 on its upper surface K (see FIG. 11). The filter 118 includes a hole-shaped portion or dirt collection chamber 117 serving as a GM mouth, and the filter 118 separates dirt from the fluid and allows fine suspended matter to pass through and return to the cleaning tank.

However, there are some differences between the waste collectors 115 and 70 and 100, which can be seen with the help of the drawings, which illustrate important features of the invention. For example, the dirt collector 115 is located at the top of the wash tank rather than below the bottom. Since the space of the waste collector 115 is not used effectively as a space for storing dishes, the waste collector 115 reduces the space of the washing tank by an amount equal to its volume. Although the cleaning tank 54 for the cleaning tank has a bottom opening 119 at the bottom, it is different from the bottom opening 83 in the previous embodiment. The bottom opening 119 is not for the purpose of returning fine suspended matter to the cleaning tank (rather, it is intended to divert fluid to a fluid bypass@
It is for flowing through the ring passage 72 into the hole-shaped part 117 of the waste collector 115. In this way, since the filth collector 115 is located at the top of the bottom of the cleaning tank 54 of the cleaning tank, the top and sides of the filth collector body are
It itself constitutes the boundary of at least a portion of the cleaning tank.

The high-density filter 118 is rotatably mounted by a horizontally provided hinge 120. When fluid is supplied by the drain pump 58, the fluid flows into the hole 117IC directly below the high density filter 118 in the vertical direction. As shown in FIG. 11, the pressure of the fluid hitting the high-density filter 118 lifts the high-density filter 118 vertically relative to the stopper 121, and the fluid passes only through the high-density filter 118 and the perforated gate 122. Then close the hole 117 in step 5. Gate with hole 12
2 forms one side of the waste collector 115 and the hole-shaped part 117, and forms an angle of 90° to the high-density filter 118, and the high-density filter 11 is attached to the axis of the hinge 120.
It is pivoted together with 8.

As shown in FIG. 13, when the waste collector 115 is in waste removal mode, the weight of the high-density filter 118 causes it to It will fall until it hits the bottom of the cleaning tank.High density filter 1
18 rotates around the hinge 120 and falls, the perforated gate 122' is rotated and lifted by the same angle, so that the collected waste flows down into the perforated gate 122 and is collected in the water sump 60. Go inside and there,
The waste enters the inlet 63 of the drain pump 58 and will be discharged through the drain pipe 61 as in the previous embodiment.

FIGS. 14 to 17 show a fourth embodiment of a fluid diversion @ ring path waste collector, which has a dovetail-like shape and has an opening 132 extending through the opening 132. washing tank 5 of the dishwasher so that it extends to the washing tank 55.
It is attached to the bottom of 4. Unlike the previous embodiment, no diverter pulp is used in the waste collector 130 of the fluid bypass circuit. Instead, it is a drain pump 58
and the drain pulp 134 directly in the drain pipe 61. Drainage pulp 134 during the washing or rinsing period
is closed, but as in the previous embodiment, as long as the #1 ring pump 57 and the drive motor 59 are operating, the drain pump 58 also continues to operate.

This causes fluid to pass through the fluid bypass circuit to the fluid population 135 of the waste collector 130! It is K to be made into a circle. The fluid then exits through a fluid outlet 136 located at the top of the dirt collector 130 where it returns to the wash tank 55.

The waste outlet 137 connects the waste collector 130 to the drain pipe &lK through the discharge pulp 134. The inside of the waste collector 130 is a hole, forming a hole-shaped part for storing waste, that is, a waste collection chamber 138. A filter 139 separates the aperture 138 from the fluid outlet 136. Before the fluid reaches filter 139, it has a fluid population of 1
35 and after passing over its inner wall 143, the fluid and waste descends into the large section 138 towards the waste outlet 137. . The filter 139 retains dirt in the hole-shaped portion 138 (while allowing fine floating particles to return to the cleaning tank 55 as described above).

As can be seen from the drawings, the effective cross-section of the fluid outlet 166 is substantially smaller than the effective cross-sections of the inner portion 142 and the aperture 138 due to its smaller diameter.

As a result, the velocity of the fluid in the hole 138 is substantially very small compared to the flow velocity at the fluid outlet 136 due to its large effective area, when the fluid passes through the hole 168. Reducing the net velocity K provides a more stationary or quiet area within the waste collector bore 138. In quiet areas, the velocity of fluid flowing through them is very low.

Dirt settles and accumulates at the bottom of the hole 138 where the dirt outlet 137 is located. The fine suspended solids that have passed through the filter 139 are then passed through the fluid outlet 136 located far above the waste collector 130 to the cleaning tank 5.
It will be returned within 5.

When the waste collector 130 goes from the waste collection mode to the waste removal mode by opening the drain pulp 134;
A large amount of high velocity fluid passes through the hole 138 and forces the collected dirt out through the drain pipe 61. In this 5K, unlike the above-mentioned embodiments, the hole-like part 138 is placed directly in the middle of the drain pipe 61, and the fluid flows in under pressure of the fluid population 1351C and passes through the hole-like part 138. As the waste exits through the waste outlet 137, the hole 138 is swept away by the fluid drained from the dishwasher. As is clear from the drawing, the upstream measuring section of the filter 139 is configured such that when the fluid is in the waste discharge mode, #,
A fluid passage Vc passing from the body inlet 135 to the waste outlet 137 is adjacent thereto.

Fluid passing therethrough removes dirt from filter 139 and facilitates sweeping it out through the drain. In addition, since the filth collector 130 is placed in the middle of the drain pipe 61 itself, during the filth removal mode, the collected filth flows through the drain pipe 61 and is swept away, ensuring that the dishes are washed properly. Transported outside of 50.

Figures 18 to 21 are a fifth embodiment of the fluid bypass @ ring path waste collector. The waste collector 150 is fluidly coupled in the same manner as the waste collector 130. Thus, the waste collector 150 has a fluid population 152. It includes a fluid outlet 153 and a waste outlet 154 which have a substantially small effective cross section and are directly connected to the drain pipe 61 between the drain pump 58 and the drain valve 134 .

The interior 155 of the waste collector 150 is substantially larger than the effective cross-section of the fluid outlet 153, thereby providing an area of quiet conditions therein. When the waste collector 150 is in the waste collection mode, fluid circulates through the waste collector 150 so that clumps of dirt settle to the bottom of the waste collector interior 155.

A major difference between waste collector 150 and other embodiments is the absence of a high density filter. Dense filters are not required because the quiescent region of the interior 155 of the waste collector 150 allows the waste to be separated from the fluid sufficiently effectively. Instead, the dirt merely settles to the bottom of the interior 155 of the dirt collector 150, and the fine suspended matter flows out into the cleaning tank through a fluid outlet 153 constructed at the top of the interior 155. .

22 to 26 are drawings showing a sixth embodiment of the filth collector. The waste collector 160 has a fluid outlet 162 for receiving fluid from the drain pump 58, a fluid outlet 163 for returning fluid to the wash tank 55, and a waste outlet 164 connected to the drain pipe 61 through the drain pulp 134. There is. The lower interior of the waste collector 160 forms a hole-like part, ie a waste collection chamber 165, at the top of which a filter 167 is present. The waste collector 160 is actually located at the bottom 14.
'B section 168 and upper @ section 169, and the lower section 168 and filter 167 are divided into waste collection chamber 165.
form.

The upper portion 169 and the lower portion 168 have concave portions having the same shape, the lower portion 168 is a concave portion curved upward, and the upper portion 169 is a concave portion curved downward. Have it fall down and it'll take 1 minute
It is installed so that it meets 68. Both parts are hat-shaped, becoming wider the higher they are.

Lower ff11 minute 168 bottom @ wall surface 171 and upper part 16
The upper part of the wall 172 of 9 has a large slope toward the outside, reaching its maximum at the part where the upper part 169 and the lower part 168 are attached. Filter 167
are mounted and held in the same position on the two parts (see Figure 23).

The waste collection 116o thus passes through the waste collection chamber 165 when it is placed directly in the drain pipe 61 and when the dishwasher is in the fluid drain mode and the waste collector is therefore in the waste removal mode. It is similar to filth collectors 160 and 150 in that the fluid flows rapidly. However, unlike filth collectors 160 and 150, fluid volume 162 and fluid outlet 1 of filth collector 160 are similar to filth collectors 160 and 150.
63 have substantially equal effective cross-sectional areas. Additionally, a larger volume of fluid can flow through fluid bypass channel 72 than through waste collectors 130 and 150. Therefore, the rate at which the waste collector 160 can remove waste can approach the waste removal capacity of the waste collectors 70, 100, and 115.

The waste collector 160 also forms a hydrostatic region within the waste collection chamber 165 that assists in separating dirt from the fluid as the fluid passes through it. As is clear from FIG. 25, the fluid supplied from the drain pump 58 flows approximately tangentially near the widest part of the waste collection chamber 165.
The liquid flows into the filter 167 with a swirling rotational movement just below the filter 167. Fluid swirling in the surround around waste collection chamber 1650 also does not occur in its central portion.

Therefore, the center part is in a stationary state, and the filth is in the lower part 1.
It easily settles to the bottom of 68. The fluid flow during the drainage period is completely changed and flows directly from the fluid population 162 to the waste outlet 161. The fluid then sweeps away the dirt that settles and collects at the bottom of the lower portion 168 and drains it out through the drainage system.

FIG. 26 illustrates an embodiment of a fluid injection system within a dishwasher@50. Increased fluid flow through waste collector 160 during waste collection mode causes
Sufficient fine-laden fluid is ejected through fluid outlet 163 to operate an associated auxiliary sprinkler or spinneret. As a sprinkler, there is a sprinkler 175 shown in FIG. 1 just above the cleaning tank 55. The sprinkler 175 can supply additional rinsing liquid for the dishware and the recirculation pump 57 and wash arm system! 67.68
The sprinkler 175 may assist during the initial washing or rinsing period of contaminated dishware, as the waste collector 160 draws fluid from the drain pump 58 when the drain pump 58 is activated. That is, the sprinkler 175 injects the first rinsing liquid onto the dishes before the first injection means, that is, the upper washing arm device 67 and the lower washing arm device 68 are activated, and the leftover food is directly sent to the drain pump 5.
8 into the entrance 6'5 and put it into the waste collector 160.

FIG. 27 is a diagram illustrating a typical operating cycle or machine cycle for a machine such as 1 Dishwasher@50. The diagram is self-explanatory and shows a sequence of operating times, such as the soaking period, the cleaning period and the draining period. FIG. 28 shows the first few minutes of the operating graph of FIG. 27, with a short incidental cleaning period added. FIG. 28 is drawn using the same coordinates as FIG. 27.

As is clear from the figure (1) the present invention has various advantages.

The biggest advantage is that the present invention allows for substantial water reuse. It is clear that the dishwasher cleans the water first and the dishes towards the end. Therefore, it is important to remove leftover food from tableware and get it out of the washing tank as soon as possible. For example, when a dishwasher like the one shown in Figure 14 was constructed and installed with a bypass dirt collector according to the present invention, and the machine was filled and drained six times, it produced approximately 13.5 gallons of hot water during a normal operating cycle. It was used. When the fluid bypass waste collector of the present invention was installed and operated according to the operating cycle of FIG. Excellent results can be obtained. In view of the importance of saving energy and conserving natural resources, the present invention provides a substantial and important improvement in the operation of dishwashers and the like.

Since the present invention is independent of the initial injection means, it is acceptable to use a filter with a higher density than K to reduce the problem of fine airborne re-deposition. For example, if the filter 65 for the recirculation pump 57 is 1.2-
The high-density filter 90 of the waste collector 70 has pores with a diameter of only α8.
In extreme fouling conditions, a denser filter 90 may be able to remove it, and the operation of the initial injection means will not be affected. Sara K.

The high-density filter 90 removes and collects the ulnar part 8.
The dirt held within the 0 is isolated from the influence of the initial injection means and is therefore not emulsified or degraded. Instead, the fluid is swept away through the drain pipe 61 as soon as the wash tank is emptied, thereby further reducing the problem of redeposition. At the end of the drain period, both the wash basin and the waste collector in the fluid diversion @ ring path are completely drained of fluid, so there is no water that could harbor bacteria during periods when the dishwasher is not in use. Although two separate pumps are used in the preferred embodiment where no residue is left, the invention can also be used in dishwashers with only one pump. Dishwashers with two pumps have the advantage that the fluid diversion @ ring path dirt collector does not reduce the volume and pressure of fluid flowing through the recirculation pump and injection means.

Instead, the waste collector of the fluid bypass circuit is made to rely solely on the sump pump 5 to circulate fluid through the fluid bypass circuit 72. In any case,
Fluid diversion @circulating fluid flows reliably in direct response to the action of the pump and can be said to be more effective than random or splash methods for waste collection. The flow through the fluid bypass@ffi path is also essentially unrestricted, so in that sense it is unaffected and unobstructed by high pressures and initial injection means. Also,
The collected waste is controlled to be easily and quickly removed when the operating cycle is switched from the waste collection mode to the waste removal mode.

Although a diverter pulp 78 and a drain pulp 134 are used in the embodiment described above, the present invention can be used in dishwashing machines having other drainage control means. A valveless drainage system with a reversible pump and an elevated drain can also be used, as shown in US Pat. No. 810,480. In this case, the filth collector 1
5. A waste collector such as 30 or 150 may be installed in the middle of the drainage channel 61 at a lower level than the height of the higher drainage outlet.5. Then, apply as much pressure as possible during the cleaning period. However, the fluid exits the dishwasher through the drain pipe 61, which is not as large as 5.

During the drain period, the rotation of the sump pump is reversed towards its forward direction, thereby applying more pressure and pumping fluid and waste out through the fluid bypass @ ringway waste collector and drain pipe. do.

Another great advantage of the invention is that it is essentially self-cleaning. Little human intervention, ie, assistance from the dishwasher 50 operator, is required.

The high-density filter 90 and upwardly opening aperture or waste collection chamber 80 are located within easy reach of the user in case cleaning or assistance is required. However, in reality, such a thing never happens. The collected waste is always swept away and forced to flow outside through the drain pipe 61. The waste disposal plate 96 at point 63 of the drain pump 58 actually reduces the need for a separate coarse-grained filter and removes almost all coarse waste from the waste collector. The fluid is detoured through the circular path, and then through the drain pipe. The present invention does this by providing maximum cleaning performance with minimal supervision.

The waste collector 70 (as well as other embodiments) has several additional advantages. The venturi 91, which retains the collected waste in the hole 80 until the waste collector enters the waste removal mode, has no moving parts, minimizing maintenance and maximizing service life. can.

If the operating cycle is interrupted midway through, the waste collector retains the waste in the hole or waste collection chamber until the normal time to eject it. It has high durability under various conditions. Even when removed, the collected waste is basically swept into the drain pipe without polluting the cleaning tank.

Thus, the various advantages of the present invention and the numerous implementations as described above find application and use in a wide variety of dishwashing machines, dishwashers, and pump systems. They are either with or without valves.

Regardless of whether the number of cleaning arm devices is single or multiple;
Those with one or more Yoikan systems (suitable for use). Despite its structure being simple and inexpensive to manufacture.

It is durable, reliable, and effective, while also providing savings by reducing the consumption of water and energy resources.

Although this specification also describes a method and various embodiments to improve the effects of the invention, it should be understood that the invention is not limited thereto. be. There are many other variations in addition to the embodiments in this specification without departing from the technical idea of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view of a domestic dishwasher having a dirt collector in the fluid bypass circuit according to the invention. FIG. 2 is a sectional view of the filth collector shown in FIG. 14;
The cross section is taken along line 2-2 in Figure 6. FIG. 6 is a top view of the waste collector shown in FIG. 14. 4 is a cross-sectional view of the waste collector of FIG. 1 taken along line 4--4 of FIG. 3; FIG. 5 is a partial cross-sectional view of the waste collector of FIG. 1 taken along line 5-5 VCG of FIG. 3; FIG. 6 is a partial cross-sectional view of the waste collector of FIG. 1 taken along line 6--6 of FIG. 2; FIG. FIG. 7 is a schematic representation of fluid flow through the waste collector and sump of the dishwasher of FIG. 1 during cleaning and rinsing periods. FIG. 8 is a diagram similar to FIG. 7 showing the flow of fluid during the drainage period. FIG. 9 shows a second embodiment of the filth collector according to the present invention.
FIG. FIG. 10 is a diagram similar to FIGS. 3 and 6 of the embodiment of FIG. 9. FIG. 11 is a third embodiment of a dirt collector according to the present invention shown on the bottom of a washing tank of a dishwasher, taken along line 11--11 of FIG. 142. Figure 3 depicts the fluid flow through this embodiment during cleaning and rinsing. FIG. 12 is a partial top view of the implementation row of FIG. FIG. 13 shows that during the period when fluid is drained from the dishwasher,
41 representing the flow of fluid flowing out of the embodiment of FIG.
It is a figure similar to figure 1. FIG. 14 is a partial sectional view of a household dishwasher incorporating another embodiment of the present invention. FIG. 15 is a sectional view of the waste collector of FIG. 144. Figure 16 is the first stone taken from line 16-16 in Figure 145.
FIG. 4 is a sectional view of the waste collector of FIG. 4; FIG. 17 is a schematic diagram showing the movement of fluid through the waste collector of FIG. 144. FIG. 18 is a partially cutaway sectional view of a domestic dishwasher incorporating another embodiment of the present invention. FIG. 19 is a side view of the waste collector of FIG. 148. FIG. 20 is an end view of the waste collector of FIG. 18, looking from the right side to the left side of FIG. 149. FIG. 21 is a cross-sectional view showing fluid flow through the waste collector of FIG. 148. FIG. 22 is a partially cutaway sectional view of a domestic dishwasher incorporating another embodiment of the present invention. FIG. 23 is a cross-sectional view of the waste collector of FIG. 22. FIG. 24 is a bottom view of the waste collector of FIG. 22. Figure 25 is a cross-sectional view of the waste collector of Figure 22 taken along line 25-25'VC of Figure 23, illustrating fluid flow therethrough during cleaning and rinsing; There is. FIG. 26 is a diagram of the fluid pump and circulation line when using a waste collector such as that shown in FIG. 22. FIG. 27 is a diagram of a typical operating cycle or machine cycle of a domestic dishwasher basin incorporating a waste collector in accordance with the present invention. FIG. 28 is a diagram of a modification of FIG. 27. 50 Dishwasher 51 Upper rank 52
Lower rack 54 Washing tank 55 Washing
Purifier 57 Recirculation pump 58 Drain pump 59 Drive motor 60 Water reservoir 61
Drain pipe 63 (of the drain pump) Inlet 64 (of the recirculation pump) Inlet 65 Filter 67 Upper cleaning arm device 68 Lower side I 70 Sewage collector 72 Fluid bypass circuit 73
Fluid bypass @ ring path section 75 Waste collector body 78 Switching valve 80
Sewage collection chamber (hole) 83 Bottom opening 84 Bottom portion 85
Opening 87 Fluid population 88 Waste exit
90 High-density filter 91 Venturi 92 Sewage outlet 93 Plate for residual treatment (disposer) 94 Affected material 105 Pressure relief rose 122 Gate with hole 134 Drain valve IG
-26

Claims (1)

[Claims] 1. In order to remove dirt from the tableware, it has a circulation means and a jetting means for recirculating and spraying a fluid onto the tableware placed in the washing tank. ; the drainage system is connected to the circulation means for draining the fluid from within the apparatus; in a dishwasher, a) a fluid detour circuit is provided for discharging fluid from the washing tank, separated from the washing tank; b) recirculating substantially all of the fluid as it circulates through the fluid bypass circuit; removing, collecting and retaining contaminants from the fluid by passing the fluid through a high density filter disposed in its path; c) a circulation means and drainage system draining the fluid from within the apparatus; forcibly discharging collected dirt through said drainage system. 2. When the fluid accumulates at the bottom of the cleaning tank, the method further comprises the step of circulating the fluid from the bottom of the cleaning tank through a fluid bypass circuit to facilitate removal of dirt. How to remove dirt from a dishwasher as described in . 3. In the step of removing, collecting and retaining the filth, the removed filth is retained in the filth collection chamber of the filth collector. How to eliminate. 4. When waste is removed from the waste collection room to the drainage system,
From a dishwasher according to claim 3, wherein at least a portion of the fluid in the device is supplied into the waste collection chamber to flush out the waste in order to force the waste to flow through the drainage system. How to eliminate filth. 5. The method for removing dirt from a dishwasher as set forth in claim 4, wherein when draining the fluid from inside the device, the collected dirt is vigorously swept out of the dirt collection chamber and flushed into the drainage system. 6. The drainage system has circulation means and injection means for recirculating and spraying fluid onto the tableware placed in the washing tank to remove dirt from the tableware; connected to circulation means for draining water from the apparatus; in a dishwasher: a) circulating fluid from the wash tank through a fluid bypass circuit provided separately from the wash tank;
then actuating an auxiliary pump at the outlet of said circulation means for return to the cleaning tank independently of the first injection means; b) removing the dirt as the fluid circulates through the fluid bypass circuit; c) forcing the collected waste through the drainage system when the circulation means and drainage system are operated to drain fluid from within the apparatus; c) forcing the collected waste through the drainage system; A method of eliminating dirt from a dishwasher, which consists of the steps of: 7. A method for removing dirt from a dishwasher according to claim 6, wherein the function of the auxiliary pump is performed by a venturi. 8. a washing tank receiving the tableware therein; circulation means operated in a fluid recirculation mode and a fluid drainage mode; connected to said circulation means and said circulation means configured to operate in a fluid recirculation mode; initial injection means for recirculating and injecting fluid onto the dishware to remove dirt from the dishware when in the mode; and when the circulation means is in the fluid draining mode, discharging fluid from within the apparatus; a drainage system connected to said circulation means for draining; a fluid bypass circuit for removing and collecting dirt in the fluid and from said washing tank and causing said waste to be swept through said drainage system; a) said fluid bypass circuit for directing fluid out of said wash basin and through said portion when said circulation means is in fluid recirculation mode; a part that is separate from the cleaning tank and connected to the cleaning tank so that the fluid is circulated by the circulation means, in order to return the waste to the cleaning tank independently of the first injection means; b) the filth; The collector removes, collects and retains dirt from the fluid passing therethrough when the circulation means is in a fluid recirculation mode, and collects and retains dirt collected when the circulation means is in a fluid drainage mode. c) said waste collector is connected to collect and retain therein dirt removed from the fluid passing through said waste collector; d) a fluid inlet is defined in the waste collector for directing fluid into the waste collector body; and e) a fluid inlet is defined in the waste collector body for directing fluid into the waste collector body. a fluid outlet is defined on the waste collector body for guiding out of the waste collector body; f) coupling means within the waste collector body for connecting the fluid inlet and the fluid outlet; g) separating filth from the fluid passing therethrough over the entire cross section of the fluid passageway between the fluid inlet and the fluid outlet of the filth collector body, and introducing the separated filth into a filth collection chamber; a filter is provided to collect and drain the fluid containing only fine suspended matter out of the fluid outlet; h) when the circulation means is in fluid drainage mode, the waste collection chamber and the waste a filth outlet is defined on the filth collector body in communication with the filth collection chamber for removing collected filth from the collector; i) the filth collector is initially connected to the The circulation means is controllably operated in a fluid recirculation mode and a fluid drainage mode to remove and collect dirt from the wash basin independently of the injection means and then to displace the removed dirt through the drainage system. A dishwasher having the above configuration, which is provided with a control means for operation. 9. Supplying at least a portion of the fluid in the washing tank into the waste collection chamber so that when the collected waste is removed from the collection chamber into a drainage system, the waste flows forcefully through the drainage system. 9. A dishwasher as claimed in claim 8, further comprising means for cleaning. 10. The filth collector is disposed in series with the drainage system so that the collected filth is flushed from the filth collection chamber into the drainage system as fluid is drained out of the device through it. A dishwasher according to claim 9. 11. The filter according to claim 8, further comprising means for applying a reverse jet flow to the filter in order to forcefully expel dirt from the drainage system when the circulation means is in the fluid drainage mode. dishwasher. 12. When the drainage system drains fluid from inside the device,
9. A dishwasher as claimed in claim 8, including means for draining substantially all fluid from said waste collector. 13. The filter according to claim 8, wherein the filter has a cross section substantially larger than the flow path cross section of the fluid inlet and forms part of the boundary of the waste collection chamber. Dishwasher. 14. The fluid outlet has a cross section at least equal to the effective flow cross section of the fluid inlet, and the filter has a cross section larger than the flow cross section of the fluid inlet. Dishwasher as described in section. 15. Upstream of the waste collector in the fluid bypass circuit,
9. The dishwasher of claim 8, further comprising a scrap crusher for reducing large clumps of waste to a size suitable for passing through the fluid bypass circuit. 16. The scrap crusher is connected to receive large lumps of waste falling from the bottom of the washing tank; and when the circulation means is in fluid recirculation mode, the scrap crusher is configured to shred such large lumps of waste into small pieces. and one pass through the food scraps shredder to continuously remove dirt from the wash basin during the entire period during which fluid is injected onto the dishware thereby removing dirt from the dishware. 16. A dishwasher as claimed in claim 15, wherein said dishwasher is passed from said container to said waste collector. 17. A dishwasher according to claim 16, wherein the leftover food crusher also forms part of a drainage system. 18. A dishwasher as claimed in claim 8, further comprising a wash tank defining said wash tank and supporting said waste collector body therein. 19. further comprising means for limiting the pressure within the waste collection chamber to less than the maximum pressure provided by the circulation means to prevent collected waste from being forced out of the filter; Claim No. 8
Dishwasher as described in section. 20, a) said drainage system has an inlet located substantially at the bottom of said washing tank; b) said circulation means comprises: i) a drainage pump; ii) receiving fluid from the bottom of said washing tank; for,
means for connecting said drainage pump to said drainage system; iii) for connecting a fluid flow path through said drainage system out of the apparatus when said circulation means is in a fluid drainage mode; the drain connected to the fluid bypass circuit for selecting whether to flow fluid from the drainage system through the fluid bypass circuit back to the cleaning tank when in circulation mode; 9. A dishwasher according to claim 8, further comprising a switching valve within the system. 21. The cleaning tank includes a water reservoir at its bottom, and the normal drainage system is connected to the water reservoir in order to receive the fluid from the bottom and to facilitate the removal of dirt when it settles and accumulates at the bottom. 21. A dishwasher according to claim 20, wherein the dishwasher is connected to a section. 22. further comprising auxiliary pump means operated by the circulation means for circulating fluid and dirt thereby from the washing tank into the waste collection chamber when the circulation means is in a fluid recirculation mode; A dishwasher according to claim 8. 23. The dishwasher according to claim 22, wherein the auxiliary pump means is a venturi that performs a pumping action. 24. When fluid is drained from the wash tank, substantially all of the fluid is drained from the waste collector;
the filth outlet is located at least at the same height as the inlet of the drainage system; and means for introducing into the cleaning tank a low water volume constituted by a fluid volume smaller than an average fluid volume, and the circulation means means for operating the circulation means to fill the waste collection chamber from the low water level when the apparatus is in a fluid recirculation mode; and means for operating the drainage system to drain the fluid out of the apparatus. 9. A dishwasher as claimed in claim 8, in which the process rapidly fills with fluid, cleans and drains fluid and dirt from the waste collection chamber.