JPS604678A - Control valve device for fluid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure of a valve device, and particularly to a valve device for controlling the flow of fluid that can function as a check valve and a delay valve.

Valve devices that control the flow of fluid, such as check valves and delay valves, are used in various fluid handling systems such as air control mains installed in internal combustion engines of vehicles. Such systems and devices are preferably equipped with check valves and delay valves in various control lines. A negative pressure actuator (servo motor), such as a vacuum breaker, is used to actuate a carburetor check valve in an open position (usually with a constant rate delay) when the internal combustion engine is started. In such cases, it is sometimes desirable to increase the delay rate or to easily install a delay valve.

Valve devices for controlling fluid flow, such as check valves and delay valves, are particularly used in various automatic control devices, and such devices are simple in construction and low cost to manufacture and install. This is desirable.

The object of the invention is to propose a fluid flow control valve device which can be used as a check valve or a time delay valve and has a relatively minimal number of parts.

Another object of the invention is to propose a construction of a valve device in which a filter element is used as a biasing means to maintain the valve element in its normally closed position.

The object of the invention is achieved by a valve device having an annular valve seat, one end of an elongated tubular housing being closed or partially closed by a spherical valve element. The valve element is made of an elastic foamed synthetic resin material and is pressed into a seated position in which the valve seat is closed.

f The other end of the filtration member engages with the annular seat and presses the valve element at the encrustation position, and at the same time, since it is a porous material, it allows air to pass through, but it removes dust particles that are mixed in the air. is to be collected. The valve device of the present invention has a tubular structure, and both opposing end portions are molded to have the same outer diameter, so that it can be extremely easily attached to a cut-out portion of a flexible hose. Embodiments of the present invention will be described below with reference to the accompanying drawings.

Reference number 10 is a valve device for controlling the flow of fluid according to an embodiment of the present invention, in which a metal tubular housing 12 having a hollow chamber 14 is formed. The chamber 14 has a long cylindrical shape, and one end of the chamber 14 is tapered to form an opening 18, which is partially closed by narrowing the end 16. The reduced diameter end 16 is formed with a conical valve seat 20 on its inner surface for engagement with a valve element made of a steel ball. The cylindrical chamber 14 also includes a filter member 24 made of an elastic foamed synthetic resin material.
is installed. These various foam materials are porous materials that allow air to pass through,89 and at the same time collect dirt particles mixed in the air.

This kind of material is produced by Sukonoto Kogyo Co., Ltd., and is a material identical to a foamed synthetic resin material that can have one pore within a length of about 2.5 cm. belongs to.

The filter member 24 has one end thereof in the seating position 1 of the conical valve seat 20.
One end is engaged by elastically pressing the valve element 22, and the other end is engaged with an annular seat 26 formed by deforming the tubular valve 12.

The m-shaped 1'11 portion 26 is formed with airflow passages 3:-holes 3().

The other end 32 of the tubular casing 12 is reduced in diameter by the same means as the one end 16, and an opening 34 is formed to allow air to flow r+3, xl. If necessary, the above F
The T-shaped seat part 2G can be removed.
', a is tubular t1) rest ☆; - It is seated on the 4th part 32, and the other end is engaged with the valve element 22. However, in order to form the seat portion 26, the cage-shaped deformed portion 28 of the housing body 12 is partially bent in the longitudinal direction of the housing so that filter members of different lengths can be accommodated and held within the tubular housing 12. It may be transformed into

The filter member 24 not only acts as an air filter, but also acts as an elastic material that presses the spherical valve element 22 into the sitting position.

Air opens 34. When flowing from the left side to the right side through the passage hole 30' of the annular valve seat, the filtration member 24, air pressure tends to seat the steel ball valve element 22, thus such a configuration acts as a check valve. .

In FIG. 1, when air flows from the right to the left side 1, i.e. in the opposite direction to the above-mentioned direction, the valve element is pushed away from the valve seat 20 by the action of air pressure against the deflection action of the elastic filter member 211. When opened, the filter member 242 through hole is 3υ, and a substantially free air circulation passage is formed through the opening 34 L7.

A case has been described in which the configuration of the valve system ut described above is used as a check valve. However, if desired, a notch 36 can be cut into the valve seat 20 to provide a restricted flow path for air from the left side to the right side when the valve element 22 is seated in the seat position 6. can be formed.

Such a valve arrangement acts as a delay valve to restrict the flow of air from the left side to the right side, however, when air flows from the right side to the left side and the valve element 22 is not seated in the valve seat 20. The air flows freely without any restriction.

Even if the valve arrangement 10 is designed as a check valve or else as a delay valve, the valve arrangement IO can be installed very easily, for example, in the desired position of the vacuum hose 38. Such a hose 38 is usually made of rubber material, and the installation operation is as simple as cutting the hose 38 and inserting both ends of the tubular housing 12 into the cut rubber hose as shown in FIG. Ru. If desired, the tubular housing can be secured in position on the rubber hose shown by means of a ramp as indicated by reference numeral 40.

A second embodiment of the invention is shown in FIG.

In this figure, a valve device 50 is formed with a tubular housing 52, and a pair of tubular members 54, 56 having through holes 5B, 6 (J) immediately installed are inserted into both ends of the tubular housing 52.

The tubular members 54 , 56 fit airtightly into the tubular housing 52 and there is a space between the tubular members within the tubular housing 50 and between the inner ends of the tubular members 56 to form a chamber 62 .

A valve element 64 made of a steel ball is housed in the chamber 62, and the valve element 64 is arranged to sit on the inner end surface of the pipe member 54, which acts as a valve seat. Valve element 64 is pushed into a position that closes valve seat 66 by the same filtering member opening resiliency as filtering member 24 .

The lachrymal membrane name is molded from elastic foaming synthetic resin material,
It is a porous material that allows air to pass through, but it captures dust particles mixed in the air.

The valve device 50 is preferably used as a check valve. However, if the features and effects of a time delay valve are desired, a notch 70 can be provided in the valve seat 66. In such a case, limited air passage is allowed from the right side to the left side through the filter member 68 and the non-chia 0.

When the air flow is in the opposite direction, i.e. the third
When air flows from the left side to the right side in the figure, the valve element 64 is spaced apart from the valve seat 66 in order to allow air to pass approximately freely through the elastic p-pass member 68 and the through hole ω.

The valve device 5u can be attached to the negative pressure hose 38 in a similar way to the device IO.

The valve device 50 shown in FIG. 3 can be formed of metal, but if necessary, a tubular housing 52, a tubular member 54,
56 may be formed from a flexible and transparent synthetic resin pipe material.

The delay valve system of the present invention shown in Figures 1.2 and 3.4 allows for varying the size of the notches 36, 70. Increasing the cross-sectional length 1 of the notch reduces delayed flow of fluid even when the valve elements 22, 64 are seated in the valve seat.

In the valve device of the present invention, in which a check valve is used as a delay valve, an elongated tubular housing houses and holds a movable valve element, and the valve element is closed by the deflection elasticity of a filter member made of a foamed synthetic resin material. It is seated on the annular valve seat. The foamed synthetic resin material not only acts as an elastic material, but also acts as a permeable material that collects dust particles entrained in the air. In one embodiment of the invention, the valve housing is made of metal. In another embodiment, the tubular body may be made of a metal material or a synthetic resin material. In both of the above-described embodiments of the present invention, both ends of the tubular housing have the same diameter, so that the tubular body or hose for feeding fluid can be easily cut at a predetermined position and then cut. Both inner ends of both hoses can be connected by fitting both ends of the tubular housing.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a fluid flow control valve device according to an embodiment of the present invention, Fig. 2 is a sectional view taken along line 2-2 in Fig. 1, and Fig. 3d is another embodiment of the present invention. FIG. 4 is a sectional view taken along line 4--4 in FIG. 10, 50...Fluid control valve device 12, 50...
- Tubular housing 22, 64... Spherical valve element 22,
26゜66・Fist/valve seat 24, 68...Elastic p-pass member 54, 56-...Pipe member Patent applicant Schmelser Corporation Commissioner of the Patent Office Mr. Kazuo Wakasugi 1 Display of case 1982 Waka "'" Application No. 106838 No. 2, Title of the invention Fluid control valve system fi1113 Relationship with amendment 7j Patent applicant 4 Agent

Claims (9)

[Claims] (1) A casing forming a chamber, a pair of openings formed by the casing and communicating with the chamber, a valve seat formed by one of the pair of openings in the chamber, and a valve seat forming the opening. a valve element that moves out of engagement with the valve seat in response to fluid flowing in an opposite direction through the chamber; a fluid passage member made of a resilient foam material disposed within the chamber; A fluid control valve element according to claim 1, wherein a filtering member engages the valve element to resiliently press the valve element engaged with the valve seat. (2) Claims characterized in that the housing is an elongated tube member, the chamber is cylindrical, and the pair of openings are formed at opposing ends of the chamber. The fluid control valve device according to item (1). (3) The annular valve seat is formed at one end of the cylindrical chamber, and both end surfaces of the filtering member are engaged with the annular valve seat and the valve element, respectively. Range number (
2) The fluid control valve device described in item 2). (4) The valve seat is provided with a notch to form a restricted passage from the chamber when the valve element is in the closed position to retard fluid flow. 1) The fluid control valve device described in item 1). (5) The fluid control valve device according to claim (1), wherein the valve element is spherical. (6) The casing is formed of a tubular material, and the tubular material is formed with a reduced diameter portion -Qj:A of the valve seat, and the tubular material has a seat portion of the filter member. Claim (1) characterized in that a seat part is provided which is contracted in an annular shape at a position away from the valve seat to form a valve seat.
Fluid control valve device 5 described in section 5 (7) The casing is formed of a tubular material, and a pair of pipe members having through holes are fitted airtightly into both ends of the casing, and the insides of both the pipe members are airtightly fitted to form a hole inside the casing. The ends have a desired spacing, the inner end of one of the tube members forming a valve portion that engages with the valve element, and the inner end of the other tube forming a valve portion that engages with the valve element ( The fluid control valve device according to claim 1, further comprising a retaining seat portion that supports the other end of the suction member whose one end is engaged with Ill. (8) When the valve element is engaged with the valve seat of the tubular member, the valve element forms a notch for allowing fluid to leak through the valve seat portion. (
6) The fluid control valve device described in item 6). (9) The fluid control valve device l70 according to claim (6), wherein both the pipe members have the same outer diameter in order to connect the flexible pipe bodies.