CN1982763A

CN1982763A - Pressure valve

Info

Publication number: CN1982763A
Application number: CN 200510003445
Authority: CN
Inventors: 周洪成; 金米洙; 高在锡
Original assignee: CHOO HONG SEUNG
Current assignee: CHOO HONG SEUNG
Priority date: 2005-12-14
Filing date: 2005-12-14
Publication date: 2007-06-20

Abstract

A retainer for controlling the fluid discharge comprises separable first and second casing connected each other, first and second fluid channels in communication with the first and second casing, an actuator mounted in the first fluid channel, a staler with holes fixed in the second fluid channel and an elastic device for keeping clearances between the actuator and the stator. The actuator can slide by means of the fluid pressure and make the fluid flow between the actuator and the channel.

Description

Pressure valve

Technical field

The present invention relates to a kind of pressure valve, more specifically, relate to a kind of pressure valve that makes according to pressure change rate fluid discharged amount variance ratio even variation in limited range of incoming fluid.

Background technique

Present employed pressure valve all is to be designed to simply just opening when driving element is exerted pressure.This pressure valve is at the korean patent application No.97-017483 of submission on July 2nd, 1997 and open in the Korean Patent No.0300508 of registration on June 18 calendar year 2001.

Exist many predetermined fluid amounts and must be with change in fluid pressure continuously change and the circuit field, for example as field such as the machine of the industrial element of use fluid, filter with relate to the biological technical field etc. of blood pressure.Therefore, need the stable pressure valve that is effectively applied to every field of a kind of energy.

Especially, even a kind of pressure change rate when incoming fluid of needs also can make the pressure valve of variance ratio even variation in limited range of fluid discharge amount when quite high.

Summary of the invention

Also can make the pressure valve of variance ratio even variation in limited range of fluid discharge amount even an object of the present invention is to provide a kind of pressure change rate when quite high, thereby the amount of circulation of fluid is remained on proper level when incoming fluid.

According to an aspect of the present invention, provide a kind of pressure valve, this valve comprises: first and second shells connected to one another separably, first and second shells have first and second fluid passages that communicate with each other respectively; Assign into the actuator in the first fluid passage, this actuator can slide by means of hydrodynamic pressure, and fluid is flowed between actuator and passage; Be fixed in the second channel and porose stator is set; And in order to keep the elastic device in gap between actuator and stator, the wherein mobile direction receiving actuator of this stator longshore current body, and the Fluid Volume of discharging from described hole changes according to the blocking rate hole, that blocked by actuator of stator.

This actuator can at one end be provided with tapered segment, and stator can near-end be provided with the receiving groove in order to the tapered segment of receiving actuator, and described gap can remain between described tapered segment and the receiving groove with changing.

First and second shells can be made by thermal distortion and less ferrous metal or the nonferrous metal of pressure distortion, and actuator and stator can be made by polymer material or stupalith with good heat resistanceheat resistant, resistance to compression, friction resistant thermal characteristics.

According to a further aspect in the invention, a kind of pressure valve is provided, this valve comprises: first and second shells connected to one another separably, described first shell is provided with the first fluid passage and first receive path, the diameter of this first receive path communicates greater than the diameter of first fluid passage and with the first fluid passage, second shell is provided with second fluid passage and second receive path, the diameter of this second receive path communicates greater than the diameter of second fluid passage and with the first fluid passage, and described first and second receive paths toward each other; Assign in the first fluid passage actuator that can move by hydrodynamic pressure, this actuator periphery is provided with groove; Be fixed in the second channel and porose stator be set, wherein the fluid parking space is determined between actuator and the stator, and the gap between actuator and the stator changes according to the pressure against the pressure accumulated fluid in the fluid parking space of incoming fluid; And an end of the direction receiving actuator that an end longshore current body of stator flows, and the Fluid Volume of discharging from the hole changes according to the blocking rate hole, that blocked by actuator of stator.

This pressure valve also can comprise the elastomeric spring that is arranged between actuator and the stator.

Even can being predefined for when hydrodynamic pressure increases to maximum, the biasing force of elastic device also can keep described gap with changing.

One in actuator and the stator can be provided with in order to keep the projection of minimum clearance between described actuator and stator with changing.

Description of drawings

Some advantages of some purposes above the present invention and other are detailed description of the preferred embodiment and embody clearlyer in conjunction with the drawings, wherein:

Fig. 1 is the decomposition section of pressure valve according to an embodiment of the invention;

Fig. 2 is a pressure valve shown in Figure 1 sectional view when fitting together;

Fig. 2 A is the enlarged view of A part among Fig. 2;

Fig. 3 A to 3C is according to the displacement of the actuator sectional view along the intercepting of the 3-3 ' line among Fig. 2 A; With

Fig. 4 is the block diagram according to the example application of pressure valve of the present invention.

Embodiment

Describe the preferred embodiments of the present invention in detail referring now to accompanying drawing.

Fig. 1 is the decomposition section of pressure valve according to an embodiment of the invention, and Fig. 2 is a pressure valve shown in Figure 1 sectional view when fitting together.

Referring to Fig. 1 to 2, first and second shells 110 that structure is identical and 130 link together toward each other and separably by means of for example fastening piece of screw 117 each other.In order to strengthen the sealing force between first and

second shells

110 and 130, can in connection procedure, between first and

second shells

110 and 130, insert packing ring.First and

second shells

110 and 130 also can be connected to each other by the heat bonding method or by tackiness agent, and do not use screw 117.

Preferably, first and

second shells

110 and 120 can be made by thermal distortion and less ferrous metal or the nonferrous metal of pressure distortion.In addition, screw thread 119 can be formed, so that other element can be threaded onto on the periphery of first and

second shells

110 and 120 on the periphery of first and

second shells

110 and 120.

Fluid flow channel 111 and receive path 115 form the center by first shell 110.Fluid flow channel 111 communicates with receive path 115.Fluid drainage channel 131 and receive path 135 form the center by second shell 130.Fluid drainage channel 131 communicates with receive path 135.

Therefore, when first and

second shells

110 and 130 are connected to each other, just formed passage (fluid flow channel 111 → receive path 115 → receive path 115a → fluid parking space 200 → receive path 135 → fluid drainage channel 131).

Can be used for fluid of the present invention can select from the group by purified water, liquid mixture, viscous liquid and gas composition.

First and

second shells

110 and 130 separately receive

path

115 and 135 diameter flows into greater than fluid respectively and the diameter of discharge passage 111 and 131.Therefore, respectively between receive path 115 and the fluid flow channel 111, between receive path 135 and fluid drainage channel 131, formed step-

portion

113 and 133.

Actuator 120 assigns in the receive path 115 of first shell 110 slidably, and stator 140 is fixedly mounted in the receive path 135 of second shell 130.

Actuator 120 comprises main body 125, and this main body 125 has and receive path 115 corresponding parts.On the periphery of main body 125, form fluid channel grooves 121.Therefore, even when main body 125 is installed in the receive path 115 of first shell 110, the fluid that enters by fluid flow channel 111 also can flow through the fluid channel grooves 121 of main body 125.

In addition, driver 120 also comprises the extended projection 127 from the end of main body 125, and hydrodynamic pressure is not applied directly on this projection.Tapered segment 123 is integrally formed on the end of projection 127.

Stator 140 is provided with the hole 141 that forms by its center.141 tail end extends to form the receiving groove 143 of tapered segment 123 that is used for receiving actuator 120 from the hole.

Preferably, actuator 120 and stator 140 can be formed by polymer material or stupalith with performances such as good heat resistanceheat resistant, resistance to compression, anti-friction chafing.

Simultaneously, elastomeric spring 150 can assign between actuator 120 and the stator 140.

Now the operation of above-mentioned pressure valve will be described referring to attached Fig. 1 and 2.

When fluid entered by fluid input 112, fluid flow through the fluid flow channel 111 of first shell 110, the fluid channel grooves 121 of actuator 120, the hole 141 that is limited to fluid parking space 200, receiving groove 143 and stator 140 between actuator 120 and the stator 140 and the fluid drainage channel 131 of second shell 130.At last, fluid is discharged by the fluid output 132 of second shell 130.

According to the present invention, the blocking rate even variation hole 141 of stator 140, that blocked by actuator 120 is so that make that the fluid discharge amount in the hole 141 by stator 140 can even variation.In addition, the maximum biasing force of default spring 150, like this, the hole 141 that the tapered segment 123 of actuator 120 can not total blockage stator 140.

The even variation of the discharge stream scale of construction

Actuator 120 is promoted by the fluid of supplying with by the fluid flow channel 111 of first shell 110.Fluid enters and is accumulated in the fluid parking space 200 between actuator 120 and the stator 140 by the groove 121 that forms on actuator 120 peripheries.

Be accumulated in fluid in the fluid parking space 200 by actuator 120 tapered segment 123 and the gap between the receiving groove 143 of stator 140 enter hole 141.

Here, because actuator 120 promotes by the fluid that flows into, so the blocking rate even variation hole 141 of stator 140, that block by the tapered segment 123 of actuator 120.Therefore, the Fluid Volume even variation (referring to Fig. 3 A to 3C) of discharging by the hole 141 of stator 140.

The total blockage in prevention hole

The maximum biasing force of spring 150 is scheduled to.Therefore, even when hydrodynamic pressure reaches the maximum biasing force of spring 150, also can form minimum gap by the receiving groove 143 of the tapered segment 123 of actuator 120 and stator 140 biasing force by spring 150.Therefore, the tapered segment 123 of actuator 120 can not be blocked the hole 141 of stator 140 fully.

Therefore, no matter how much pressure of influent is, can realize that stable fluid flows.

Perhaps, can omit spring 150.Change into and can on the receiving groove 143 of the tapered segment 123 of actuator 120 or stator 140, form projection.By means of this projection, can form minimum clearance, in case the hole 141 of fastening 140 is stopped up fully.

Or, the sectional area that is formed on the fluid channel grooves 121 on the periphery of main body 125 of actuator 120 can be designed to sectional area greater than the hole 141 of stator 140.Therefore, though when hydrodynamic pressure when higher, the tapered segment 123 of actuator 120 also can not stop up the hole 141 of stator 140 fully.

Fig. 4 is the block diagram that pressure valve according to the present invention is used for the engine oil circulatory system wherein.

Referring to Fig. 4, in the engine oil circulatory system, by means of pump 210 oil pump is gone in the oil strainer 220, with foreign object contained in the oil that filters out motor 200.Part oil passes through the by pass filter 230 higher than the sieve aperture rate of oil strainer 220 from bypass.Here, owing to pressure valve 100 according to the present invention is installed on the inlet of by pass filter 230, can even variation so flow through the oil mass of by pass filter 230.

As mentioned above, when by pass filter 230 and pressure valve 100 are used for the engine oil circulatory system, can improve the purity of the oil of supply engine 200; And when oil flows through by pass filter 230, can make oil cooling but.

And, pressure valve of the present invention also can be used for some other occasion, for example in order to according to the blood supply system of the even blood supply of blood pressure, in order to the even drainage system of draining and in order to the acoustic pressure control system of even control vibration and noise in the dam for example in the serious position that changes of water level.

As mentioned above according to the present invention, because opening according to the hydrodynamic pressure that puts on the actuator of stator hole change, so but flow through the Fluid Volume even variation in this hole.Therefore, the amount of circulation of fluid can be according to institute's applied pressure even variation.

Although describe the present invention in detail, should be appreciated that and under the situation of not leaving the spirit and scope of the present invention defined by the appended claims, to carry out various variations, substitute and change.

Claims

1, a kind of pressure valve comprises:

First and second shells connected to one another separably, first and second shells have first and second fluid passages that communicate with each other respectively;

Assign into the actuator in the first fluid passage, this actuator can slide by means of hydrodynamic pressure, and fluid is flowed between actuator and passage;

Be fixed in the second channel and porose stator is set; With

In order to the elastic device in maintenance gap between actuator and stator,

The direction receiving actuator that wherein said stator longshore current body flows, and the Fluid Volume of discharging from described hole changes according to the blocking rate hole, that blocked by actuator of stator.

2, pressure valve as claimed in claim 1, wherein: also can keep described gap even the biasing force of described elastic device is predefined for when hydrodynamic pressure increases to maximum with changing.

3, pressure valve as claimed in claim 1, wherein: described actuator at one end is provided with tapered segment, and the stator near-end is provided with the receiving groove in order to the tapered segment of receiving actuator, and described gap can remain between described tapered segment and the receiving groove with changing.

4, pressure valve as claimed in claim 1, wherein: described first and second shells are made by thermal distortion and less ferrous metal or the nonferrous metal of pressure distortion, and actuator and stator are made by polymer material or stupalith with good heat resistanceheat resistant, resistance to compression, friction resistant thermal characteristics.

5, a kind of pressure valve comprises:

First and second shells connected to one another separably, described first shell is provided with the first fluid passage and first receive path, the diameter of this first receive path communicates greater than the diameter of first fluid passage and with the first fluid passage, second shell is provided with second fluid passage and second receive path, the diameter of this second receive path communicates greater than the diameter of second fluid passage and with the first fluid passage, and described first and second receive paths toward each other;

Assign in the first fluid passage actuator that can move by hydrodynamic pressure, this actuator periphery is provided with groove; With

Be fixed in the second channel and porose stator is set; And

Wherein the fluid parking space is determined between actuator and the stator, and the gap between actuator and the stator changes according to the pressure against the pressure accumulated fluid in the fluid parking space of incoming fluid; And

One end of the direction receiving actuator that one end longshore current body of stator flows, and the Fluid Volume of discharging from the hole changes according to the blocking rate hole, that blocked by actuator of stator.

6, pressure valve as claimed in claim 5 also comprises: be arranged on the elastomeric spring between actuator and the stator.

7, pressure valve as claimed in claim 6, wherein: also can keep described gap even the biasing force of described elastic device is predefined for when hydrodynamic pressure increases to maximum with changing.

8, pressure valve as claimed in claim 5, wherein: one in actuator and the stator is provided with in order to keep the projection of minimum clearance between described actuator and stator with changing.