KR19980086476A - Lube oil pumps for engines or compressors - Google Patents

Abstract

The present invention relates to a lubricating oil pump for a multi-cylinder engine or compressor, in particular a two-stroke diesel engine, comprising at least one housing having at least one piston pump member, a lubrication pump shaft for the piston pump member and at least one discharge line. And further housings similar to this housing are arranged in a row to be connectable to the housing, each housing being connected to one another in a row and shared by several housings comprising a pump member, or And a flow duct and means for selectively connecting the pump member of the housing to a separate feeder which is guided to only one pump member of the housing.

Description

Lube oil pumps for engines or compressors

The present invention relates to a lubricating oil pump for a multi-cylinder engine or compressor, in particular a two-stroke diesel engine.

The lubricating oil pump described in the document Oil Lubrication Pump Form T, DKS-1-900-00 (92.09), by Joseph Siegel AG, describes a medium or large diesel engine or compressor. It is received and disposed axially parallel to the delivery shaft, with one or two pressure ducts leading from the pump member to the pressure relief port of the housing lid, while lubricating oil is supplied into the housing via a pressure or pressureless tube system. In most cases, several housings are arranged in a row and installed in the joint drive, each housing having injection holes connected to the feeder via a line.

However, such lubricating oil pumps generally consume a considerable amount of consumption through the pipe, and the lubricating oil pump is complicated and expensive. In addition, in the event of a failure or repair of the cylinder of the engine to be lubricated, the cylinder must be supplied with a special commissioning oil during the periodic run, while the other cylinders still need to be supplied with the standard oil during this run, especially in tube systems. Changes that are consumed and cause difficulty are required to be changed from the lubricating oil pump to the commissioning oil or from the commissioning oil to the standard oil. In addition, performance is limited due to the known lubricating oil pump driving and structural principles, making it difficult to meet the lubrication performance required for modern medium and large engines.

The lubrication pump, known as CH-A-24 39 01, is provided with several housings consisting of a pump member and a joint drive, which are connected to each other by means of clamping screws extending in the longitudinal direction.

And, in the lubricating oil and fuel supply system known from GB-A-73 84 51 connected to a diesel engine which can be selectively driven with lightweight heavy oil, individual pumps are provided for each oil type, Complex tube systems with optional conversion possibilities are integrated.

In addition, in the lubrication system known from FR-A-676 243, a device for washing or filtering the lubricating oil is mounted in the lubrication circuit, and the devices can be selectively isolated by a multiple valve.

In addition, in the lubricator known from GB-A-464 926, several reservoirs are provided for different types of lubricating oil which can optionally be pumped to the lubrication point, as well as providing flow connections that require adjustable valve means. And close off any unwanted flow connections. Lubrication points are operated sequentially.

It is an object of the present invention to provide a lubricating oil pump of the above-described type, which is simple in shape and simple, inexpensive in manufacture, and achieves an operation conversion between a standard oil and a test oil at high speed without any serious technical effort.

1 is a block diagram showing a cylinder lubrication system with a lubricating oil pump for a cylinder;

2 is a diagram of a detailed portion of the pump module,

3 is a partial longitudinal sectional view of the lubricating oil pump according to FIG. 1 with three pumps for a total of six cylinders, FIG.

Figure 4 is a partial cross-sectional view cut horizontally the lubricating oil pump of Figure 3,

Figure 5 is a detailed cross-sectional view of the connection portion of the pump module.

* Explanation of symbols for main parts of the drawings

A-Connection B-Drive

C-Junction Feeder D-Breaker

E-Pump member F-Filter

G-Housing H-Pollution Meter

J-Overpressure regulator K-Coupling

L-Rupture Member M-Pump Module

N-Optical Flow Control O- Electric Flow Control

P-Lube Pump R- Check Valve

T-Feeder V- Flow Rate Controller

W, W'- Distributor X- Speed measurement window

Z1-Z6-Cylinder

In order to achieve the above object, thanks to the junction feeder for all housings of the lubricant pump, the feeders of the individual pump elements do not require a complicated tube system, so that the housings are only connected to each other so that all pump members receive lubricant from the junction feeder. It only needs to be connected. If, for example, the conversion of commissioning oil or other types of oil is required in the housing of the lubricating oil pump, such a change is possible in a fast manner at any time without any change in the tube system, and the pump of the housing changed after such a change When the members are connected to the individual feeders, all other unchanged pump members will nevertheless be supplied by the junction feeder. Since each housing is formed in a distributor block type, the overall conciseness and the lubricating oil pump can be inherently strong, and the driving principle that leads to an efficient lubricating oil pump that can satisfy the maximum lubrication requirements with a powerful pump member. It is possible to meet.

According to the present invention, it is possible, for example, to separate the housing which is changed from the bonded standard oil feeder to the commissioning oil, so as to separately supply different types of oil, for example commissioning oil, without damaging the appropriate feeder of the other housing. No change in the tube system is required, but the shutoff device must be activated, and additional connections can be permanently or only selectively connected to the commissioning oil source, and each pump can be easily assembled with a receptacle open out of the housing. do. The receptacle is also said to cross the flow ducts of the housing, thus eliminating the need for connection during the conversion operation.

The commissioning oil feeder and / or consumption measuring device may preferably be connected to an additional connection of the housing, in which case only the pump member of the housing is supplied with a different type of oil than the pump member of the other housing of the lubricating oil pump. The oil consumption of the pump member of this housing can be measured without compromising the lubrication function in the other housing. For example, the commissioning oil consumption can be easily measured in this way, and the standard oil can also be measured as described above by means of additional connections, which can be carried out individually in each of the housings.

In addition, the additional connection can be formed as a receiving hole for the additional shutoff device, for example a commissioning oil supply is permanently connected to the connection. In the case of a changeover, two blocking devices must be operated without any change required inside the housing.

Structural simplicity is achieved when the housing duct is formed into a hole during the fabrication of the housing, the bore or hole is also more suitable for higher pressure than the tube and saves structural space by accommodating the blocking device for separating the housing from the junction feeder.

Preferably, the pump member is driven directly by the eccentric shaft portion supported in the housing, the block-shaped structure is advantageous in manufacturing, and the receiving portion is a hole for the receiving portion and the housing duct and the eccentric shaft portion as well as the pressure regulating duct. It can be produced continuously in modern production facilities. The pump member can run from a single housing or several housing sides into the housing and serve as many lubricating connections as possible, providing a very compact and stable structural shape for each housing. Even the lubricating oil pump provided is concise and forms all vibration resistant structures.

The housing is provided with four pump members in one compact assembly for convenience, each of which assists a lubrication connecting device, all the lubricating connecting device and the actuating member for the blocking device are installed on the same housing side, which is technically operated. It is advantageous to

According to the invention, the flow rate can be individually adjusted for each lubrication connecting device conveniently without interference inside the housing.

The structure allows for reliable detection of lubrication, where all components are integrated into the housing or clearly installed on the housing, at least partly thanks to the double search to achieve a high degree of operational reliability.

All housings of the lubricating oil pump can be detected centrally for inoperability in case of overpressure, the detection function being done in a very simple manner structurally by the rupture member, in which case the other pump members are inoperable of the pump member. Nevertheless, important emergency functions are first performed.

Contamination of the standard oil is suppressed in at least one filter before entering the lubricant pump, and additional detection means are provided to improve operating reliability, saving space during assembly when the lubricant pump consists of several modules. It is possible to mount easily.

As the pump module, each housing can form independent structural units by allowing lubrication pumps of different sizes and performances to be produced in the module structure without using expensive tubes for oil feeders or oil guidance.

In order to meet the special requirements, each housing has at least one heating duct portion therein which enables selective heating of all housings or just one housing by connecting to a steam heater or to a heating element, wherein the heating duct portion For convenience the flow connection is already formed in such a way as to connect to the adjacent housing after the opening of each opening of the heating duct portion of the housing wall.

In addition, the lubricating oil pump can be installed for ease of assembly with a speed measurement device attached to the last housing facing away from the drive for convenience, and the load-dependent lubrication point supply can also be installed in a three-phase geared motor. Can be performed when the speed or torque is changed in the adjustment plane by the frequency converter.In case the frequency converter is inoperable, the three-phase motor is additionally operated at the speed measured according to normal normal main frequency, which is an important emergency function. .

However, other convenient drives may be used to jointly drive all the pump modules coupled to the lubricating oil pump.

For convenience, each housing already has an electrical pre-installer, for example with the cable arrangement laid in the cable duct of the housing, which is conveniently connected by means of a cable connection device through all the housings which are connected to each other while cooperating during the connection of the housings. It can be extended, supply current for an electrical or electronic component can be delivered from the cable arrangement, and / or a signal or data can be provided for the purpose of detection or regulation.

DETAILED DESCRIPTION Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A cylinder lubrication system for lubricating six cylinders Z1-Z6 of a medium or large diesel engine or compressor, such as a two-stroke marine diesel engine, a compressor, for example, has three pump modules M as basic components. A cylinder lubricating oil pump (P), a gradual distributor (W, W ') equal to the number of cylinders, and oil reservoirs (T1, T2) of standard or break-in oil. (M) shows the four pump members (E) supplied to the discharge valve by the gradual distributor (W ') and the upper and lower lubrication plane of the cylinder (Z1-Z6) by the gradual distributor (W) therein. It is attached to the block-shaped housing G attached to this.

The eccentric shaft parts 1 ', 1, 1' included in the drive shaft line leading to the joint drive part are supported in the respective housings, and the eccentric shaft parts 1 ', 1, 1' directly direct each pump member. Drive and are connected to each other by coupling means (K), while the housing (G) is connected in series with the connecting portion (2), and the flow channels (3 ', 3, 3') in the housing (G), It is provided as part of a continuous bonded oil feed duct line 3 which is continuous by being connected by a housing G and which is connected to a junction feeder C, for example a tank T1 for standard oil. The fine feed filter F having a pore size of about 100 μm is provided in combination with a blocking device upstream of the first housing G or the flow channel part 3 ′, and includes a flow duct connecting all the pump members of the housing ( 4) is diverged from each flow channel portion 3 'of the housing G, and the blocking device D is installed in the housing G for the flow duct 4.

Each housing also has an additional connection A which is connected by means of a flow duct 5 to the pump member E of the housing G, which is a tank for commissioning oil and other types of oil or standard oil. T2 may be connected to the connecting portion A, and an additional blocking device U may be provided at the connecting portion A or inside the connecting portion A. FIG. As shown by the broken line in the figure, the consumption measuring device 7 may be provided at the connection part A of the flow duct 6 selectively installed in the housing G, or also optionally installed in the housing G. An additional flow duct 8 connects the tank T2 to the joint supply duct line 3. However, it is also possible to connect several housings G to the tank T2 at the same time, in the case where all the pump modules of the lubricating oil pump P are to be supplied in the form of oil of the tank T2, the fine filter F It is convenient to cut off the shutoff device at, and to guide the test run oil to the supply duct line 3 via the flow duct 8, or may be guided from the side of the drive B or from the side of the fine filter F. .

In addition to the level and / or filter contamination control device (H) being provided in at least one of the housings, the lubricating oil pump (P) is connected to the overpressure line (9) passing through all the housings (J). Is provided to be bonded to all the housing (G) for convenience, the pre-applied shock valve 13 may be provided with an overpressure duct (9) in the at least one housing (G).

On the other hand, as shown in Figure 2, the pump members are individually adjustable with respect to each flow rate as indicated by the inclined arrow in the figure, the optical flow control device (N) is a tube 10 and buoy visible for convenience (11; float) is installed in each discharge line leading to the lubrication connecting device (12). In addition, for example, an electric flow control device (O) in response to the movement of the buoy 11, such as an electrical access switch, is installed in at least one of the optical flow control devices (N), the electric flow control device (O) for convenience It is connected to a signal or alarm by means of a cable device, a thin shielded cable that passes through all housings G. In addition, each discharge line 23 is protected by a check valve R which blocks the reverse flow direction toward the pump member E, and the overpressure duct 9 'of all the housings is provided with an electrical overpressure regulator. Each discharge line 23 is connected to an overpressure duct 9 'passing through the housing G by a mechanical bursting member L, forming an overpressure line 9 to which is connected.

The block diagrams of FIGS. 1 and 2 are different in detail, as each of these figures only schematically illustrates the structure and equipment of an individual pump module and is shown in more detail in FIGS. 3 and 4.

As shown in Figs. 3 and 4, partly showing the vertical and horizontal sections of the lubricating oil pump P with three pump modules M, for example, an asynchronous motor with an associated frequency converter (not shown). A drive unit B, such as an asyncronous motor (BM), is projected with a power train BG on the side of the first housing of the three housings G, and eccentrically connected to each other by a coupling K. The shaft portions 1, 1 ', 1, 1' are driven. The pump member E is inserted into an accommodating portion 19 formed into the block-shaped housing G, the accommodating portions protruding outwardly from the housing side to adjust the flow rate from the outside, for example, by the operation handle 21. It is in the manner in which the device V is operated. On the other hand, the level and / or filter contamination measuring device H is also mounted on the side of the upper housing next to the actuating member 22 for the blocking device D inserted into the housing duct 4. The pump members E are arranged in pairs in the axial direction next to each side, that is, two on the housing upper side and two on the housing front side, so that each pump module is conveniently mounted on the upper housing side. Lubricant coupling device 12 is provided. Each additional connection A can be closed by an oil discharge screw 26 when not in use, for example where the pump member E and the eccentric shaft parts 1 ', 1, 1' are located. It terminates in a housing duct 5 which is connected to an internal housing chamber.

Only two pump members are provided in the third housing G, and two unused receiving portions 19 are covered by the cover 24. As shown in the cut section selected in the second housing of FIG. 3, the discharge line 23 leads to the lubrication connecting device 12 in the form of a housing duct of the insert, and the rupture member L is connected to the discharge line 23 of the insert. ) Is connected to the overpressure duct (9) and transmits the overpressure signal to the overpressure control device when the rupture of the rupture member (L) does not occur.

In addition, each housing G has a housing side, for example facing the barbed tube 10 shown in the third housing G of FIG. 3 away from the actuating member 22 for each discharge line 23. On the front side of the housing, integrated into the optical flow regulator (N), next to this optical flow regulator was integrated into an electrical flow regulator (O) which can be provided only in one barbed tube or preferably in each barbed tube. The electrical flow control device (O) is conveniently installed in the cable duct 31 of the housing (G) for convenience and can be connected to the cable line of the neighboring housing (G) by a cable connecting device when the housings are connected to each other. While connected to the cable line, this cable line can be guided to an alarm or signaling device (not shown) of the lubricating oil pump P. In addition, a discharge opening 30 for the eccentric shaft lines 1 ', 1, 1' is formed into the housing G. The discharge opening 30 of the last housing G in the row of housings G is a cover (Fig. 4). It can be closed by), it is also possible to mount the speed measuring device (X) in this part.

FIG. 4 shows how the lubrication connecting device 12 of the housing G is installed in order on the side of the housing in which the actuating member 22 for the blocking device D is located. In the case of the first housing G, FIG. The housing duct part 3 'forms a continuous duct line 34 with the housing duct part 3 of the second housing and the housing duct part of the third housing (not shown), and the junction feeder of the last housing in the row of housings. (C). Center bolts 25 centering the housings with respect to each other are provided in the second and third housings in FIG. 4, each housing G being for example steam heated as shown in the third housing of FIG. 4. And a housing duct 29 which is connected to a heating line, such as a heating duct, which is capable of being inserted into a heating member such as a heating rod, wherein the heating ducts 29 of the housing G of the lubricating oil pump are all May be connected to each other for heating of the housing. Alternatively, at least one heating element is inserted only in each housing or only in the selected housing G to perform a separate heating action. An optical level controller, which is the inspection glass 28 of FIG. 4, may also be further provided.

In FIG. 5, the second housing G of the row of housings is coupled to the threaded holes 14 of the first housing and is supported by the clamping screws 15 respectively supported by the heads in the hole shoulders of the second housing. ), And the third housing is also supported by its head in the hole shoulder, but threaded in the extended internal thread 17 of the second housing G behind the head 16 of the front clamping screw 1. It is connected to the second housing by a clamping screw 15 which is screwed into the inner threaded portion of the threaded sleeve 18 to be fastened. Thus, it is possible for each rear housing to be fixed to the front housing, and the same length of clamping screws 15 can be used and arranged in a row in any desired number, the length of the screws being approximately equal to the length of the housing. Matches.

In spite of the externally accessible components, each pump module M is pressure sealed and has a concise shape, so that the lubricating oil pump P becomes very concise as a whole. In addition, the housing has a compact block shape, the connecting parts have a huge load carrying capacity, and the sides of the connected housings are flatly bonded to each other, so that the lubricating oil pump P has a very large inherent stiffness. The support member is also eliminated and nevertheless resists vibrations which are particularly important in the final stages of starting and driving. Each housing G has been described by way of example only with four receptacles for four pump members, but it is possible to connect an additional pair of pump members from the additional housing side to the same eccentric shaft, It is also possible to provide three adjacent pump elements E on each housing side, to make the housing G smaller and more compact, or to install with only one or two respective pump elements. In addition, thanks to its inherent rigidity and concise shape, the lubricating oil pump P is directly fixed to the pump feeder or the engine to be lubricated, or as shown in FIG. 4, a coupling fixing point is provided in each housing G. It may be fixed by the transfer plate 33.

As described above, according to the present invention, a simple shape and simple, inexpensive in manufacturing, to achieve the operation conversion between the standard oil and the test run oil at a high speed without any serious technical effort, structurally simple yet high rigidity and It has the effect of obtaining a high degree of operational reliability.

Claims (19)

At least one housing G provided with at least one piston pump member E, a lubrication pump shaft 1, 1 ′, 1, 1 ′ for the piston pump member E, and a further similar housing ( Compressed or multi-cylinder motors, in particular two-stroke diesel engines or the like, consisting of at least one discharge line 23 leading to at least one lubrication connecting device 12 in which G) is aligned and connected in series with the housing G In the lubricating oil pump P, each of the housings G is connected to the flow ducts 3 ', 3, 3', 5, 4 in a plurality of housings which are connected to each other in a row and have a pump member. Means for selectively connecting the pump members E of the housing G to the feeders T1 and C shared by them or to individual feeders T2 leading to the pump members E of the housing G. Lubricating oil pump for an engine or a compressor, characterized in that. The housing (G) according to claim 1, wherein the housing (G) is provided with a continuous joint oil supply duct line (3) with parts (3 ', 3, 3') of a further similar housing (G) connected in series with the housing. Flow ducts are provided as parts 3 ′, 3, 3 ′ of the oil supply duct to be formed, and each pump member E is introduced from the outside into the receiving portion 19 open to the outside of the housing G. Inserted and connected to the parts 3 ', 3, 3', and selectively provided with a shut-off device D between the pump member E and the parts, each housing G having a separate feeder ( Lubricating oil pump for an engine or compressor, characterized in that it comprises a connection (A) structurally separated from the parts (3 ', 3, 3') for T2). The oil injection supply (T2) and / or the consumption measuring device (7) for the pump member (E) of the housing (G) are connected to the connection (A) of the housing (G). Lubricant pumps for engines or compressors. 3. A lubricating oil pump for an engine or compressor according to claim 2, characterized in that the connection (A) is formed as a receiving hole for a further selectively actuated shut-off device (D) of the individual feeder (T2). 3. The component (3), 3 (3, 3 ′) and the component and the further connection (A) as well as the discharge line (23) from the pump member (E) to the outer part of the housing. The flow connecting devices 4 and 5 leading to the receiving portion 19 are formed as housing ducts, preferably as housing holes, and the blocking device D is received in one of the housing ducts. Lubricant pumps for engines or compressors. 3. The housing (G) according to claim 2, wherein the housing (G) is a block of hexahedron and has eccentric shafts (1 ', 1, 1'), at least two receiving portions (19) for each pump member (E). Aligned in the axial direction and / or deflected at 90 ° or 180 ° with respect to the axis, the receiving portion is substantially radial to the axis of the eccentric shaft portion. 3. The two housing sides are provided with a pair of adjacent receptacles (19) leading to a lubrication connecting device (12) in which each discharge line (23) is provided at the housing side. And, all the lubrication connecting device (12) is a lubricating oil pump for an engine or compressor, characterized in that the operating member 22 is installed on the housing side provided for the blocking device (D). A pump according to claim 1, wherein each of the pump members (E) has a flow rate control device (V) freely accessible to one housing side when the pump member (E) is inserted into the receiving portion (19). Lubricating oil pump for an engine or a compressor, characterized in that. 2. Optical flow according to claim 1, wherein each lubrication connector 12 is provided with a buoy 11 in the visible tube 10, on the housing side, preferably on the housing side facing away from the lubrication connector. An electric flow adjusting device (O) having an adjusting device (N) and having a proximity switch corresponding to, for example, a buoy in the cavity of the optical flow adjusting device (N), is provided with at least one lubrication connecting device of the housing (G). Lubricating oil pump for an engine or a compressor, characterized in that provided in 12). 2. The housing (G) according to claim 1, wherein the housing (G) has a continuous overpressure duct (9 ') forming an overpressure line (9) together with the overpressure duct (9) of the additional housing (G), respectively. The discharge line 23 is connected to the overpressure duct 9 'by the bursting member L, and the electrical overpressure regulator J is connected to the overpressure duct 9. Lube oil pump for engines or compressors. The fine feed filter (F) having a pore size of preferably 100 μm is provided in the oil supply duct line (3) in front of the housing (G) first in the feed direction. Lubricating oil pumps for engines or compressors The lubricating oil pump of claim 1, wherein the at least one housing (G) comprises an electrical monitoring device (H, 28) for oil level and / or degree of contamination of the filter. A further housing (G) is connected to the first housing (G), which is connected to the drives (B, BM, BG) by means of an internal clamping screw (15), each clamping screw (15). ) Is formed to the length of the housing and screwed into the internal threads 14, 18, the internal threads into the extended threads 17 of the housing behind the head 16 of the previous clamping screw 15). A lubricating oil pump for an engine or a compressor, characterized in that it is provided between two adjacent housings G in a screw-in bushing. The pump member (E) of claim 1, wherein each of the pump members (E) is supplied with lubrication oil to the lubrication plane and the discharge valve of the engine cylinder by a gradual distributor (W, W1) connected to the lubrication plane or the discharge line (23). , With the help of two pairs of pump members E, each housing G forms a pump module M for the two cylinders Z1-Z2 of the engine to be lubricated, and by all pump modules M The shared drive unit (B) is aligned in a line, the lubricant pump for an engine or compressor, characterized in that connected to the first of the pump module (M) connected to the joint oil supply. 2. The housing (G) according to claim 1, wherein the housing (G) is at least one heating duct portion (29) for guiding a heating element or heating medium selectively connected to the heating duct portion (29) of the adjacent housing (G) by the housing wall. Lubricating oil pump for an engine or a compressor, characterized in that it comprises a). 2. The housing according to claim 1, wherein the housing (G) has a discharge opening for the eccentric shaft (1 ', 1, 1'), and a cover (27) or a locking member for the speed measuring device (X) is provided for the discharge opening. (30) Lubricating oil pump for an engine or a compressor, characterized in that provided in the area. The engine of claim 14, wherein the driving unit B includes three-phase interlocking motors BM and BG having a frequency converter, and the three-phase interlocking motor operates in response to a load. Lubricant pumps for compressors. 15. The lubricating oil pump for an engine or compressor according to claim 14, wherein the driving unit (B) comprises an electrode conversion electric motor or a DC motor or a hydraulic motor. 2. A housing according to claim 1, wherein the housing (G) is provided with a continuous cable duct (31) connectable to the cable ducts of the additional housing (G) and at least one cable connection device (32). Lubricating oil pump for an engine or a compressor, characterized in that.