CN105937512B - The method of work of adjusting flexible plunger type bidirection press relief valve - Google Patents
The method of work of adjusting flexible plunger type bidirection press relief valve Download PDFInfo
- Publication number
- CN105937512B CN105937512B CN201610512489.XA CN201610512489A CN105937512B CN 105937512 B CN105937512 B CN 105937512B CN 201610512489 A CN201610512489 A CN 201610512489A CN 105937512 B CN105937512 B CN 105937512B
- Authority
- CN
- China
- Prior art keywords
- piston
- fluid
- pressure
- relief valve
- plunger type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Abstract
A kind of method of work of adjusting flexible plunger type bidirection press relief valve of the present invention, it is characterized in that adjusting nut is adjusted according to the setting pressure of fluid first, so as to be adjusted come the elastic potential energy to spring, pressure release value of the final control fluid in outer shell fluid passage, when the pressure of the left and right ends of adjusting flexible plunger type bidirection press relief valve is equal, piston is not acted；When the left end right-hand member of adjusting flexible plunger type bidirection press relief valve has pressure differential and pressure differential is more than the pressure release value of setting, piston movement is so as to reach the purpose of pressure release, until equal with the pressure on right side on the left of dividing plate, piston puts in order original position.The present invention have the advantages that to carry out double-direction relief, simple in construction, performance stably, the short speed of venting duration is fast, precision is high, good airproof performance.
Description
Technical field
The present invention relates to a kind of method of work of adjusting flexible plunger type bidirection press relief valve.
Background technology
In radiator, cooling system, hydraulic system, lubricating system, fluid transmission system, power system, the machinery of lathe
Main shaft, machining center and liquid etc.；In system above, liquid has some impact, pulse, instantaneous pressures in flow process
Greatly, instantaneous delivery it is big etc. it is harsh want condition for peace, the fluid especially used in winter and severe cold area machinery is just opened in machinery
When dynamic, viscosity is big, poor fluidity, with great impact power, the whole machinery of influence, the paralysis of machining center.In order that pressure is flat
Weighing apparatus, discharges pressure well, and damage will not be brought to other equipment or other components and is scrapped, there is relief valve on the market,
So that system pressure is balanced, safeguards system safety.Then relief valve on the market is all unidirectional relief valve, is needed in installation process
There is set direction, can not be applied in addition on the pipeline that two-way circulates, and pressure pressure release value can not be set.Therefore seek
Asking a kind of can carry out that double-direction relief, simple in construction, performance are stable, the short speed of venting duration is fast, precision is high, good airproof performance
Adjusting flexible plunger type bidirection press relief valve is particularly important.
The content of the invention
It is steady it is an object of the invention to overcome above-mentioned deficiency there is provided one kind can carry out double-direction relief, simple in construction, performance
Determine, the short speed of venting duration is fast, precision is high, the method for work of good airproof performance adjusting flexible plunger type bidirection press relief valve.
The object of the present invention is achieved like this：
A kind of method of work of adjusting flexible plunger type bidirection press relief valve, adjusting flexible plunger type bidirection press relief valve bag
Include shell body, inner housing, piston, two springs, two regulating blocks and two adjusting nuts, the shell body lateral arrangement,
Formed in the shell body in the middle part of the shell body fluid passage of a lateral direction penetrating, the shell body and be provided with Fluid passageways
Chamber, the internal diameter of Fluid passageways chamber is more than the external diameter of shell body fluid passage, and Fluid passageways intracavitary is fixedly installed one piece of stripper loop
Plate, separates ring flat-plate and Fluid passageways chamber is separated to form into two chambers of Fluid passageways half in left and right, left section and right section of the shell body is right
Title is provided with a nut groove, and the piston is horizontally set at the middle part of shell body fluid passage, the shell of the piston left and right sides
Set gradually spring, regulating block and inner housing in body fluid passage from inside to outside respectively, the outer end of two springs is connected respectively
Rotation is equipped with two adjusting nuts, regulating block and adjusting nut spiral shell respectively in the inner of two regulating blocks, the outer section of two regulating blocks
Line coordinates, and adjusting nut is limited in nut groove, and gap, the outer end of regulating block are left between the inner face and shell body of regulating block
Gap is left between face and inner housing, the piston is the hollow structure of left and right ends opening, and the piston includes piston shell,
One piece of dividing plate being vertically arranged is provided with the middle part of the piston shell, the inside of piston is divided into two difference in left and right by dividing plate
The piston fluid passage being in communication with the outside, is provided with the fluid bore being arranged symmetrically on the piston shell of the dividing plate left and right sides.
Adjusting nut is adjusted according to the setting pressure of fluid first, so as to be adjusted come the elastic potential energy to spring
Section, pressure release value of the final control fluid in outer shell fluid passage；
When the pressure of the left and right ends of adjusting flexible plunger type bidirection press relief valve is equal, piston is in housing center
Position, the partition position of piston is corresponding with the position of the separation ring flat-plate of housing, and piston is not acted；
When the left end pressure of adjusting flexible plunger type bidirection press relief valve is more than right-hand member pressure, due to the work on the left of dividing plate
The pressure that the pressure in fluid passage is more than in the piston fluid passage on the right side of dividing plate is filled in, fluid forces dividing plate moves right, from
And cause piston also move right, the fluid bore on the left of dividing plate be located at right side half intracavitary of Fluid passageways when, pressure compared with
Big fluid flows out to the intracavitary of Fluid passageways half on right side, Ran Houzai out of left side piston fluid passage by fluid bore
In the piston fluid passage for flowing to right side, so that the purpose of pressure release is reached, until, piston equal with the pressure on right side on the left of dividing plate
Put in order original position；
When the right-hand member pressure of adjusting flexible plunger type bidirection press relief valve is more than left end pressure, due to the work on the right side of dividing plate
The pressure that the pressure in fluid passage is more than in the piston fluid passage on the left of dividing plate is filled in, fluid forces dividing plate is moved to the left, from
And cause piston be also moved to the left, the fluid bore on the right side of dividing plate be located at left side half intracavitary of Fluid passageways when, pressure compared with
Big fluid flows out to the intracavitary of Fluid passageways half in left side, Ran Houzai out of right side piston fluid passage by fluid bore
In the piston fluid passage for flowing to left side, so that the purpose of pressure release is reached, until, piston equal with the pressure on right side on the left of dividing plate
Put in order original position.
The outer end inner wall of inner housing is provided with connection screw thread.
Hollow out at the shell body of adjusting nut front and rear surfaces, the outer surface of adjusting nut is provided with graduation mark.
The internal diameter for separating ring flat-plate is consistent with the internal diameter of shell body fluid passage.
The external diameter of spring is matched with the internal diameter of shell body fluid passage.
The fluid bore is circular layout on piston shell.
Fluid bore of the dividing plate per side is provided with multi-turn.
The fluid bore of high order end is not more than the transverse direction of the chamber of Fluid passageways half to the lateral separation between the fluid bore of low order end
Distance.
The left and right ends of the piston are provided with the step coordinated with spring.
It is provided between the inner segment outer wall and shell body of regulating block between inner seal ring, the outer section inwall inner housing of regulating block
It is provided with exterior seal ring.
Compared with prior art, the beneficial effects of the invention are as follows：
Double-direction relief, simple in construction, performance are stable, the short speed of venting duration is fast, precision with that can carry out by the present invention
The high, advantage of good airproof performance.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of adjusting flexible plunger type bidirection press relief valve.
Fig. 2 is the contour structures schematic diagram of adjusting flexible plunger type bidirection press relief valve.
Fig. 3 is the section plan of housing.
Fig. 4 is the section plan of piston.
Fig. 5 is the half-sectional explosive view of plane of adjusting flexible plunger type bidirection press relief valve.
Fig. 6 is the three-dimensional half-sectional explosive view of adjusting flexible plunger type bidirection press relief valve.
Fig. 7 is the schematic diagram of embodiment 1.
Fig. 8 is the schematic diagram of embodiment 2.
Wherein：
Shell body 701, shell body fluid passage 701.1, Fluid passageways chamber 701.2, separation ring flat-plate 701.3, nut groove
701.4
Inner housing 702
Piston 703, piston shell 703.1, dividing plate 703.2, fluid bore 703.3, step 703.4, piston fluid passage
703.5
Spring 704
Regulating block 705
Adjusting nut 706
Connecting bolt 707
Inner seal ring 708
Exterior seal ring 709.
Embodiment
Referring to Fig. 1 ~ Fig. 8, a kind of adjusting flexible plunger type bidirection press relief valve of the present invention, it includes shell body
701st, inner housing 702, piston 703, two springs 704, two regulating blocks 705 and two adjusting nuts 706, the shell body
The shell body fluid passage 701.1 of a lateral direction penetrating, the shell body are formed in 701 lateral arrangements, the shell body 701
701 middle part is provided with Fluid passageways chamber 701.2, and the internal diameter of Fluid passageways chamber 701.2 is more than shell body fluid passage 701.1
One piece of separation ring flat-plate 701.3 is fixedly installed in external diameter, Fluid passageways chamber 701.2, separates the internal diameter and shell body of ring flat-plate 701.3
The internal diameter of fluid passage 701.1 is consistent, separates ring flat-plate 701.3 and Fluid passageways chamber 701.2 is separated to form into the two fluid mistakes in left and right
The chamber of road half, left section and right section of the shell body 701 is symmetrically arranged with a nut groove 701.4.The piston 703 is laterally set
Respectively from introversion in middle part in shell body fluid passage 701.1, the shell body fluid passage 701.1 of the left and right sides of piston 703
It is outer to set gradually spring 704, regulating block 705 and inner housing 702, external diameter and the shell body fluid passage 701.1 of spring 704
Internal diameter is matched.The outer end of two springs 704 is connected respectively to be divided in the inner of two regulating blocks 705, the outer section of two regulating blocks 705
It Xuan not be equipped with outside hollow out at two adjusting nuts 706, the shell body 701 of the front and rear surfaces of adjusting nut 706, adjusting nut 706
Surface is provided with graduation mark, and regulating block 705 coordinates with the screw thread of adjusting nut 706, and adjusting nut 706 is limited in nut groove 701.4
Interior, the lateral separation of regulating block 705 can be adjusted by putting adjusting nut 706 by rotation, so that the elastic potential energy of spring 704 is adjusted,
Pressure release value of the fluid in outer shell fluid passage 701.1 can be controlled.Inner housing 702 passes through connecting bolt with shell body 701
707 fix, and the outer end inner wall of inner housing 702 is provided with connection screw thread, between the inner segment outer wall and shell body 701 of regulating block 705
It is provided between inner seal ring 708, the outer section inwall inner housing 702 of regulating block 705 and is provided with exterior seal ring 709, regulating block 705
Inner face and shell body 701 between leave gap, leave gap between the outer face of regulating block 705 and inner housing 702.
The piston 703 is the hollow structure of left and right ends opening, and the piston 703 includes piston shell 703.1, described
The middle part of piston shell 703.1 is provided with one piece of dividing plate being vertically arranged 703.2, and dividing plate 703.2 separates the inside of piston 703
The piston fluid passage 703.5 being in communication with the outside respectively for left and right two, the piston shell positioned at the left and right sides of dividing plate 703.2
It is provided with the fluid bore 703.3 being arranged symmetrically on 703.1, the fluid bore 703.3 is circular layout on piston shell 703.1,
Fluid bore 703.3 of the dividing plate 703.2 per side can be provided with multi-turn, and the one of high order end encloses fluid bore 703.3 to low order end
Lateral separation between one circle fluid bore 703.3 is not more than the lateral separation of the chamber of Fluid passageways half.The left and right two of the piston 703
End is provided with the step 703.4 coordinated with spring 704.
A kind of method of work of adjusting flexible plunger type bidirection press relief valve：
Adjusting nut is adjusted according to the setting pressure of fluid first, so as to be adjusted come the elastic potential energy to spring
Section, pressure release value of the final control fluid in outer shell fluid passage；
When the pressure of the left and right ends of adjusting flexible plunger type bidirection press relief valve is equal, piston is in housing center
Position, the partition position of piston is corresponding with the position of the separation ring flat-plate of housing, and piston is not acted；
Embodiment 1, when adjusting flexible plunger type bidirection press relief valve left end pressure be more than right-hand member pressure when, due to dividing plate
Pressure in the piston fluid passage in left side is more than the pressure in the piston fluid passage on the right side of dividing plate, and fluid forces dividing plate is to the right
It is mobile, so that piston also moves right, when the fluid bore on the left of dividing plate is located at half intracavitary of Fluid passageways on right side,
The larger fluid of pressure flows out to the intracavitary of Fluid passageways half on right side out of left side piston fluid passage by fluid bore,
Then in the piston fluid passage for flowing to right side again, so as to reach the purpose of pressure release, now the spring in left side is in extended state,
The spring on right side is in compressive state, until equal with the pressure on right side on the left of dividing plate, piston puts in order original position.
Embodiment 2, when adjusting flexible plunger type bidirection press relief valve right-hand member pressure be more than left end pressure when, due to dividing plate
Pressure in the piston fluid passage on right side is more than the pressure in the piston fluid passage on the left of dividing plate, and fluid forces dividing plate is to the left
It is mobile, so that piston is also moved to the left, when the fluid bore on the right side of dividing plate is located at half intracavitary of Fluid passageways in left side,
The larger fluid of pressure flows out to the intracavitary of Fluid passageways half in left side out of right side piston fluid passage by fluid bore,
Then in the piston fluid passage for flowing to left side again, so as to reach the purpose of pressure release, now the spring on right side is in extended state,
The spring in left side is in compressive state, until equal with the pressure on right side on the left of dividing plate, piston puts in order original position.
Claims (8)
1. a kind of method of work of adjusting flexible plunger type bidirection press relief valve, it is characterised in that the adjusting flexible plunger type is two-way
Pressure relief valve includes shell body（701）, inner housing（702）, piston（703）, two springs（704）, two regulating blocks（705）
And two adjusting nuts（706）, the shell body（701）Lateral arrangement, the shell body（701）One transverse direction of interior formation is passed through
Logical shell body fluid passage（701.1）, the shell body（701）Middle part be provided with Fluid passageways chamber（701.2）, fluid mistake
Road chamber（701.2）Internal diameter be more than shell body fluid passage（701.1）External diameter, Fluid passageways chamber（701.2）Inside it is fixedly installed
There is one piece of separation ring flat-plate（701.3）, separate ring flat-plate（701.3）By Fluid passageways chamber（701.2）It is separated to form two fluids in left and right
The chamber of passageway half, the shell body（701）Left section and right section be symmetrically arranged with a nut groove（701.4）, the piston（703）
It is horizontally set at shell body fluid passage（701.1）Middle part, piston（703）The shell body fluid passage of the left and right sides
（701.1）Inside set gradually spring from inside to outside respectively（704）, regulating block（705）And inner housing（702）, two springs
（704）Outer end connect two regulating blocks respectively（705）The inner, two regulating blocks（705）Outer section on respectively rotation be equipped with two
Individual adjusting nut（706）, regulating block（705）With adjusting nut（706）Screw thread coordinates, adjusting nut（706）It is limited in nut groove
（701.4）It is interior, regulating block（705）Inner face and shell body（701）Between leave gap, regulating block（705）Outer face with
Inner housing（702）Between leave gap, the piston（703）For the hollow structure of left and right ends opening, the piston（703）Bag
Include piston shell（703.1）, the piston shell（703.1）Middle part be provided with one piece of dividing plate being vertically arranged（703.2）, every
Plate（703.2）By piston（703）Inside be divided into the piston fluid passage that is in communication with the outside respectively of left and right two（703.5）,
Positioned at dividing plate（703.2）The piston shell of the left and right sides（703.1）On be provided with the fluid bore being arranged symmetrically（703.3）；
Adjusting nut is adjusted according to the setting pressure of fluid first, so that be adjusted come the elastic potential energy to spring,
Pressure release value of the final control fluid in outer shell fluid passage；
When the pressure of the left and right ends of adjusting flexible plunger type bidirection press relief valve is equal, piston is in housing center position
Put, the partition position of piston is corresponding with the position of the separation ring flat-plate of housing, and piston is not acted；
When the left end pressure of adjusting flexible plunger type bidirection press relief valve is more than right-hand member pressure, due to the piston flow on the left of dividing plate
Pressure in body passage is more than the pressure in the piston fluid passage on the right side of dividing plate, and fluid forces dividing plate moves right, so that
Obtain piston also to move right, when the fluid bore on the left of dividing plate is located at half intracavitary of Fluid passageways on right side, pressure is larger
Fluid flows out to the intracavitary of Fluid passageways half on right side out of left side piston fluid passage by fluid bore, then flow to again
In the piston fluid passage on right side, so as to reach the purpose of pressure release, until equal with the pressure on right side on the left of dividing plate, piston is put in order
It is in situ；
When the right-hand member pressure of adjusting flexible plunger type bidirection press relief valve is more than left end pressure, due to the piston flow on the right side of dividing plate
Pressure in body passage is more than the pressure in the piston fluid passage on the left of dividing plate, and fluid forces dividing plate is moved to the left, so that
Obtain piston to be also moved to the left, when the fluid bore on the right side of dividing plate is located at half intracavitary of Fluid passageways in left side, pressure is larger
Fluid flows out to the intracavitary of Fluid passageways half in left side out of right side piston fluid passage by fluid bore, then flow to again
In the piston fluid passage in left side, so as to reach the purpose of pressure release, until equal with the pressure on right side on the left of dividing plate, piston is put in order
It is in situ；
The piston（703）Left and right ends be provided with and spring（704）The step of cooperation（703.4）；
Regulating block（705）Inner segment outer wall and shell body（701）Between be provided with inner seal ring（708）, regulating block（705）It is outer
Section inwall inner housing（702）Between be provided with exterior seal ring（709）.
2. a kind of method of work of adjusting flexible plunger type bidirection press relief valve according to claim 1, it is characterised in that
Inner housing（702）Outer end inner wall be provided with connection screw thread.
3. a kind of method of work of adjusting flexible plunger type bidirection press relief valve according to claim 1, it is characterised in that
Adjusting nut（706）The shell body of front and rear surfaces（701）Locate hollow out, adjusting nut（706）Outer surface be provided with graduation mark.
4. a kind of method of work of adjusting flexible plunger type bidirection press relief valve according to claim 1, it is characterised in that
Separate ring flat-plate（701.3）Internal diameter and shell body fluid passage（701.1）Internal diameter it is consistent.
5. a kind of method of work of adjusting flexible plunger type bidirection press relief valve according to claim 1, it is characterised in that
Spring（704）External diameter and shell body fluid passage（701.1）Internal diameter matching.
6. a kind of method of work of adjusting flexible plunger type bidirection press relief valve according to claim 1, it is characterised in that
The fluid bore（703.3）It is circular layout in piston shell（703.1）On.
7. a kind of method of work of adjusting flexible plunger type bidirection press relief valve according to claim 1, it is characterised in that
Dividing plate（703.2）Fluid bore per side（703.3）It is provided with multi-turn.
8. a kind of method of work of adjusting flexible plunger type bidirection press relief valve according to claim 1, it is characterised in that
The fluid bore of high order end（703.3）To the fluid bore of low order end（703.3）Between lateral separation be not more than the chamber of Fluid passageways half
Lateral separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610512489.XA CN105937512B (en) | 2016-06-30 | 2016-06-30 | The method of work of adjusting flexible plunger type bidirection press relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610512489.XA CN105937512B (en) | 2016-06-30 | 2016-06-30 | The method of work of adjusting flexible plunger type bidirection press relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105937512A CN105937512A (en) | 2016-09-14 |
| CN105937512B true CN105937512B (en) | 2017-09-29 |
Family
ID=56872891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610512489.XA Active CN105937512B (en) | 2016-06-30 | 2016-06-30 | The method of work of adjusting flexible plunger type bidirection press relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105937512B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612692B (en) * | 2018-05-14 | 2020-09-15 | 江苏理工学院 | Double-spring pressure compensation speed regulating valve |
| CN108869418B (en) * | 2018-07-12 | 2019-11-12 | 中航飞机起落架有限责任公司 | A kind of undercarriage turning system bidirectional safe integrated control valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233016Y (en) * | 1995-12-01 | 1996-08-14 | 涿州石油物探绿茵实业有限公司 | Two-way pressure valve |
| EP1930636A2 (en) * | 2006-12-08 | 2008-06-11 | Honeywell International, Inc. | Bi-directional positive/negative pressure relief valve |
| CN203272916U (en) * | 2013-05-23 | 2013-11-06 | 张进龙 | Bidirectional drainage stopping valve |
| CN103603747A (en) * | 2013-08-10 | 2014-02-26 | 蒙国宁 | Intake pressure balancing adjuster for supercharged and intercooled gas engine |
| CN203940063U (en) * | 2014-06-13 | 2014-11-12 | 陕西飞机工业（集团）有限公司 | A kind of aircraft fuel system adjustable bidirectional Safety valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5249598A (en) * | 1992-08-03 | 1993-10-05 | Vernay Laboratories, Inc. | Bi-directional vent and overpressure relief valve |
-
2016
- 2016-06-30 CN CN201610512489.XA patent/CN105937512B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233016Y (en) * | 1995-12-01 | 1996-08-14 | 涿州石油物探绿茵实业有限公司 | Two-way pressure valve |
| EP1930636A2 (en) * | 2006-12-08 | 2008-06-11 | Honeywell International, Inc. | Bi-directional positive/negative pressure relief valve |
| CN203272916U (en) * | 2013-05-23 | 2013-11-06 | 张进龙 | Bidirectional drainage stopping valve |
| CN103603747A (en) * | 2013-08-10 | 2014-02-26 | 蒙国宁 | Intake pressure balancing adjuster for supercharged and intercooled gas engine |
| CN203940063U (en) * | 2014-06-13 | 2014-11-12 | 陕西飞机工业（集团）有限公司 | A kind of aircraft fuel system adjustable bidirectional Safety valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105937512A (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106051245B (en) | Adjusting flexible plunger type bidirection press relief valve | |
| CN205938031U (en) | Piston type double directional pressure relief valve with adjustable | |
| CN105937512B (en) | The method of work of adjusting flexible plunger type bidirection press relief valve | |
| CN106122545B (en) | The working method of hydraulic pressure bypass with adjusting flexible plunger type bidirection press relief valve | |
| CN101718337B (en) | Electricity-liquid integration control device for metal belt continuously variable transmission, clamp type control valve and digital pressure reduction valve | |
| CN110230617A (en) | A kind of novel load holding valve | |
| CN105952932B (en) | Piston bidirectional pressure relief valve | |
| CN204805193U (en) | Relief valve | |
| CN106050776B (en) | Hydraulic pressure bypass with adjusting flexible plunger type bidirection press relief valve | |
| CN111911216A (en) | Directional flow valve with continuous flow adjusting function and control method thereof | |
| CN106051246B (en) | The working method of piston bidirectional pressure relief valve | |
| CN205937276U (en) | Hydraulic pressure bypass of piston type double directional pressure relief valve with adjustable area | |
| CN105937515B (en) | The method of work of hydraulic pressure bypass with piston bidirectional pressure relief valve | |
| CN105952727B (en) | The method of work of the temperature control hydraulic pressure heat-exchange system bypassed with adjustable relief valve hydraulic pressure | |
| CN203155916U (en) | Centering device for synchronous cylinder of ring rolling hydraulic machine | |
| CN106122544B (en) | Hydraulic pressure bypass with adjustable ball figure bidirection press relief valve | |
| CN106015192B (en) | The method of work of the hydraulic pressure heat-exchange system of hydraulic pressure bypass with adjustable relief valve | |
| CN206112186U (en) | Take hydraulic pressure bypass of piston double directional pressure relief valve | |
| CN105952938B (en) | Hydraulic pressure bypass with piston bidirectional pressure relief valve | |
| CN105952934B (en) | The working method of hydraulic pressure bypass with adjustable ball figure bidirection press relief valve | |
| CN105952937B (en) | Protecting against shock accumulation of energy radiator with adjustable movable plug double-direction relief valve | |
| CN111550463A (en) | Direct-acting three-way pressure reducing valve for regulating pressure by servo motor | |
| CN105937522B (en) | The hydraulic pressure heat-exchange system of hydraulic pressure bypass with adjustable relief valve | |
| CN105065360A (en) | Constant-power control device and pressure variable control method thereof | |
| CN106051244A (en) | Working method of adjustable type sphere-shaped two-way pressure release valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |