CN105937515A - Working method for hydraulic bypass with piston-type two-way pressure relief valve - Google Patents
Working method for hydraulic bypass with piston-type two-way pressure relief valve Download PDFInfo
- Publication number
- CN105937515A CN105937515A CN201610512495.5A CN201610512495A CN105937515A CN 105937515 A CN105937515 A CN 105937515A CN 201610512495 A CN201610512495 A CN 201610512495A CN 105937515 A CN105937515 A CN 105937515A
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- China
- Prior art keywords
- piston
- relief valve
- pressure relief
- hydraulic pressure
- pressure
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- 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.)
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Classifications
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- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a working method for a hydraulic bypass with a piston-type two-way pressure relief valve. The hydraulic bypass with the piston-type two-way pressure relief valve is connected to a hydraulic main path in parallel, and comprises a hydraulic-bypass left section, a hydraulic-bypass right section and the piston-type two-way pressure relief valve connected between the hydraulic-bypass left section and the hydraulic-bypass right section; when liquid flows and the hydraulic main path is not expedite, a piston in the piston-type two-way pressure relief valve moves, the pressure relief aim is achieved accordingly, and when pressure of the left side of a partition plate is equal to pressure of the right side of the partition plate, the piston is returned to the normal position, and the hydraulic main path is returned to be expedite. The working method has the advantages of being capable of conducting two-way pressure relief, simple in structure, stable in performance, short in pressure relief time, high in pressure relief speed and accuracy and good in sealing performance.
Description
Technical field
The present invention relates to the method for work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve.
Background technology
At radiator, cooling system, hydraulic system, lubricating system, fluid drive system, power system, the mechanical main shaft of lathe, machining center and liquid etc.;In system above, liquid has some impacts, pulse in flow process, instantaneous pressure is big, instantaneous delivery is big etc. harsh wants condition for peace, the fluid used in winter and severe cold area machinery especially, when machinery just starts, viscosity is big, poor fluidity, with great impact power, affect the paralysis of whole machinery, machining center.In order to make pressure balance, well discharge pressure, other equipment or other components and parts will not be brought damage and scrap, have on the market and typically can set up hydraulic pressure bypass on susceptible to plugging hydraulic pressure main road holding, then relief valve is set in hydraulic pressure bypass so that system pressure balances, safeguards system safety.Relief valve the most on the market is all unidirectional relief valve, needs set direction in installation process, additionally can not be applicable on the pipeline that two-way circulates.Therefore seek a kind of can carry out double-direction relief, simple in construction, stable performance, the short speed of venting duration is fast, precision is high, the hydraulic pressure of the band piston bidirectional pressure relief valve of good airproof performance bypass method of work particularly important.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that a kind of can carry out double-direction relief, simple in construction, stable performance, the short speed of venting duration is fast, precision is high, the hydraulic pressure of the band piston bidirectional pressure relief valve of good airproof performance bypass method of work.
The object of the present invention is achieved like this:
A kind of hydraulic pressure bypass of band piston bidirectional pressure relief valve, it is connected in parallel on hydraulic pressure main road, it is characterized in that the hydraulic pressure bypass of band piston bidirectional pressure relief valve includes that hydraulic pressure bypasses left section, hydraulic pressure bypasses right section and be connected to piston bidirectional pressure relief valve between the two
nullDescribed piston bidirectional pressure relief valve includes housing、Piston and two springs,Described housing lateral arrangement,The shell fluid passage of a lateral direction penetrating is formed in described housing,The middle part of described housing is provided with Fluid passageways chamber,Fluid passageways intracavity is provided with one piece of separation ring flat-plate being fixedly installed,Separate ring flat-plate and Fluid passageways chamber is separated to form two Fluid passageways half chambeies, left and right,Described piston is horizontally set at the middle part of shell fluid passage,Two spring lateral arrangement,And two springs lay respectively in the shell fluid passage outside piston,Described piston is the hollow structure of left and right both ends open,Described piston includes piston shell,The middle part of described piston shell is provided with one piece of dividing plate being vertically arranged,The inside of piston is divided into two the piston fluid passages being in communication with the outside respectively in left and right by dividing plate,It is positioned at and on the piston shell of the dividing plate left and right sides, is provided with the fluid bore being arranged symmetrically with.
The two ends, left and right of described housing are provided with hickey.
Two, the left and right of described shell fluid passage is provided with draw-in groove at outer end, is provided with jump ring in described draw-in groove, and two springs lay respectively in the shell fluid passage between piston and jump ring.
The internal diameter separating ring flat-plate is consistent with the internal diameter of shell fluid passage.
The external diameter of spring mates with the internal diameter of shell fluid passage.
Described fluid bore is circular layout on piston shell.
The fluid bore of the every side of dividing plate is provided with multi-turn.
The fluid bore of high order end is not more than the lateral separation in Fluid passageways half chamber to the lateral separation between the fluid bore of low order end.
The two ends, left and right of described piston are provided with the step coordinated with spring.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention has can carry out double-direction relief, simple in construction, stable performance, the short speed of venting duration is fast, precision is high, the advantage of good airproof performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of piston bidirectional pressure relief valve.
Fig. 3 is the side view of piston bidirectional pressure relief valve.
Fig. 4 is the section plan of housing.
Fig. 5 is the three-dimensional cutaway view of housing.
Fig. 6 is the section plan of piston.
Fig. 7 is the three-dimensional cutaway view of piston.
Fig. 8 is the schematic diagram of embodiment 1.
Fig. 9 is the schematic diagram of embodiment 2.
Figure 10 is the profile axonometric chart of piston bidirectional pressure relief valve.
Wherein:
Housing 601, shell fluid passage 601.1, Fluid passageways chamber 601.2, separation ring flat-plate 601.3, hickey 601.4, draw-in groove 601.5
Piston 602, piston shell 602.1, dividing plate 602.2, fluid bore 602.3, step 602.4, piston fluid passage 602.5
Spring 603
Jump ring 604.
Detailed description of the invention
See Fig. 1 ~ Figure 10, the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve that the present invention relates to, it is connected in parallel on hydraulic pressure main road, hydraulic pressure bypass with piston bidirectional pressure relief valve include hydraulic pressure bypass left section, hydraulic pressure bypass right section and be connected to piston bidirectional pressure relief valve between the two, hydraulic pressure bypasses left section and hydraulic pressure bypasses right section and threadeds with the employing of piston bidirectional pressure relief valve.
Described piston bidirectional pressure relief valve, it includes housing 601, piston 602 and two springs 603, described housing 601 lateral arrangement, the shell fluid passage 601.1 of a lateral direction penetrating is formed in described housing 601, the middle part of described housing 601 is provided with Fluid passageways chamber 601.2, the internal diameter in Fluid passageways chamber 601.2 is more than the internal diameter of shell fluid passage 601.1, one piece of separation ring flat-plate 601.3 being fixedly installed it is provided with in Fluid passageways chamber 601.2, the internal diameter separating ring flat-plate 601.3 is consistent with the internal diameter of shell fluid passage 601.1, separate ring flat-plate 601.3 and Fluid passageways chamber 601.2 is separated to form two Fluid passageways half chambeies, left and right.The two ends, left and right of described housing 601 are provided with hickey 601.4, described piston 602 is horizontally set at the middle part of shell fluid passage 601.1, two, the left and right of described shell fluid passage 601.1 is provided with draw-in groove 601.5 at outer end, it is provided with jump ring 604 in described draw-in groove 601.5, two spring 603 lateral arrangement, and two springs 603 lay respectively in the shell fluid passage 601.1 between piston 602 and jump ring 604, the external diameter of spring 603 mates with the internal diameter of shell fluid passage 601.1.nullDescribed piston 602 is the hollow structure of left and right both ends open,Described piston 602 includes piston shell 602.1,The middle part of described piston shell 602.1 is provided with one piece of dividing plate being vertically arranged 602.2,The inside of piston 602 is divided into two the piston fluid passages 602.5 being in communication with the outside respectively in left and right by dividing plate 602.2,It is positioned at and on the piston shell 602.1 of dividing plate 602.2 left and right sides, is provided with the fluid bore 602.3 being arranged symmetrically with,Described fluid bore 602.3 is circular layout on piston shell 602.1,The fluid bore 602.3 of the every side of dividing plate 602.2 can be provided with multi-turn,Lateral separation between one circle fluid bore 602.3 of one circle fluid bore 602.3 to low order end of high order end is not more than the lateral separation in Fluid passageways half chamber.The two ends, left and right of described piston 602 are provided with the step 602.4 coordinated with spring 603.
A kind of method of work of the hydraulic pressure bypass of band piston bidirectional pressure relief valve:
When hydraulic pressure main road is unobstructed, the pressure at the two ends, left and right of piston bidirectional pressure relief valve is equal, and piston is in housing center position, and the partition position of piston is corresponding with the position separating ring flat-plate of housing, and piston does not do action;
Embodiment 1, when liquid flows from left to right and hydraulic pressure main road is obstructed, the left end pressure of piston bidirectional pressure relief valve is more than right-hand member pressure, owing to the pressure in the piston fluid passage on the left of dividing plate is more than the pressure in the piston fluid passage on the right side of dividing plate, fluid forces dividing plate moves right, so that piston also moves right, when the fluid bore on the left of dividing plate is positioned at Fluid passageways half intracavity on right side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity on right side in the piston fluid passage in left side by fluid bore, it flow to the most again in the piston fluid passage on right side, thus 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 the pressure on the left of dividing plate and right side is equal, piston is put in order in situ, hydraulic pressure main road returns unobstructed.
Embodiment 2, when liquid flows from left to right and hydraulic pressure main road is obstructed, the right-hand member pressure of piston bidirectional pressure relief valve is more than left end pressure, owing to the pressure in the piston fluid passage on the right side of dividing plate is more than the pressure in the piston fluid passage on the left of dividing plate, fluid forces dividing plate is moved to the left, so that piston is also moved to the left, when the fluid bore on the right side of dividing plate is positioned at Fluid passageways half intracavity in left side, the fluid that pressure is bigger flows out to Fluid passageways half intracavity in left side in the piston fluid passage on right side by fluid bore, it flow to the most again in the piston fluid passage in left side, thus 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 the pressure on the left of dividing plate and right side is equal, piston is put in order in situ, hydraulic pressure main road returns unobstructed.
Claims (9)
1. the method for work of the hydraulic pressure bypass of a band piston bidirectional pressure relief valve, it is characterised in that:
The hydraulic pressure bypass of described band piston bidirectional pressure relief valve is connected in parallel on hydraulic pressure main road, the bypass of the hydraulic pressure of band piston bidirectional pressure relief valve include hydraulic pressure bypass left section, hydraulic pressure bypass right section and be connected to piston bidirectional pressure relief valve between the two,
nullDescribed piston bidirectional pressure relief valve includes housing (601)、Piston (602) and two springs (603),Described housing (601) lateral arrangement,The shell fluid passage (601.1) of a lateral direction penetrating is formed in described housing (601),The middle part of described housing (601) is provided with Fluid passageways chamber (601.2),One piece of separation ring flat-plate (601.3) being fixedly installed it is provided with in Fluid passageways chamber (601.2),Separate ring flat-plate (601.3) and Fluid passageways chamber (601.2) are separated to form two Fluid passageways half chambeies, left and right,Described piston (602) is horizontally set at the middle part of shell fluid passage (601.1),Two spring (603) lateral arrangement,And two springs (603) lay respectively in the shell fluid passage (601.1) outside piston (602),Described piston (602) is the hollow structure of left and right both ends open,Described piston (602) includes piston shell (602.1),The middle part of described piston shell (602.1) is provided with one piece of dividing plate being vertically arranged (602.2),The inside of piston (602) is divided into two the piston fluid passages (602.5) being in communication with the outside respectively in left and right by dividing plate (602.2),It is positioned on the piston shell (602.1) of dividing plate (602.2) left and right sides and is provided with the fluid bore (602.3) being arranged symmetrically with;
When hydraulic pressure main road is unobstructed, the pressure at the two ends, left and right of piston bidirectional pressure relief valve is equal, and piston is in housing center position, and the partition position of piston is corresponding with the position separating ring flat-plate of housing, and piston does not do action;
When liquid flows from left to right and hydraulic pressure main road is obstructed, the left end pressure of piston bidirectional pressure relief valve is more than right-hand member pressure, owing to the pressure in the piston fluid passage on the left of dividing plate is more than the pressure in the piston fluid passage on the right side of dividing plate, fluid forces dividing plate moves right, so that piston also moves right, thus reach the purpose of pressure release, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ, and hydraulic pressure main road returns unobstructed;
When liquid flows from left to right and hydraulic pressure main road is obstructed, the right-hand member pressure of piston bidirectional pressure relief valve is more than left end pressure, owing to the pressure in the piston fluid passage on the right side of dividing plate is more than the pressure in the piston fluid passage on the left of dividing plate, fluid forces dividing plate is moved to the left, so that piston is also moved to the left, thus reach the purpose of pressure release, until the pressure on the left of dividing plate and right side is equal, piston is put in order in situ, and hydraulic pressure main road returns unobstructed.
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterised in that the two ends, left and right of described housing (601) are provided with hickey (601.4).
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterized in that being provided with draw-in groove (601.5) at the outer end, two, left and right of described shell fluid passage (601.1), being provided with jump ring (604) in described draw-in groove (601.5), two springs (603) lay respectively in the shell fluid passage (601.1) between piston (602) and jump ring (604).
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterised in that the internal diameter separating ring flat-plate (601.3) is consistent with the internal diameter of shell fluid passage (601.1).
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterised in that the external diameter of spring (603) mates with the internal diameter of shell fluid passage (601.1).
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterised in that described fluid bore (602.3) is circular layout on piston shell (602.1).
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterised in that the fluid bore (602.3) of the every side of dividing plate (602.2) is provided with multi-turn.
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterised in that the lateral separation between the fluid bore (602.3) of the fluid bore (602.3) of high order end to low order end is not more than the lateral separation in Fluid passageways half chamber.
The method of work of the hydraulic pressure bypass of a kind of band piston bidirectional pressure relief valve the most according to claim 1, it is characterised in that the two ends, left and right of described piston (602) are provided with the step (602.4) coordinated with spring (603).
Priority Applications (1)
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CN201610512495.5A CN105937515B (en) | 2016-06-30 | 2016-06-30 | The method of work of hydraulic pressure bypass with piston bidirectional pressure relief valve |
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CN201610512495.5A CN105937515B (en) | 2016-06-30 | 2016-06-30 | The method of work of hydraulic pressure bypass with piston bidirectional pressure relief valve |
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CN105937515A true CN105937515A (en) | 2016-09-14 |
CN105937515B CN105937515B (en) | 2017-11-03 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109509933A (en) * | 2018-09-03 | 2019-03-22 | 蔚来汽车有限公司 | Battery cooling circuit, vehicle, battery storing station and electric charging station |
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JPH0828511A (en) * | 1994-07-12 | 1996-02-02 | Kayaba Ind Co Ltd | Driving device of levee plastering machine |
CN1875176A (en) * | 2003-11-03 | 2006-12-06 | 贝洱两合公司 | Cooling circuit for a vehicle engine |
CN101490426A (en) * | 2006-07-25 | 2009-07-22 | 斯图奇公司 | A hydraulic connection assembly with a pressure discharge control, positionable between an onboard hydraulic circuit of an engineering vehicle and a removable hydraulic equipment |
CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
CN203272916U (en) * | 2013-05-23 | 2013-11-06 | 张进龙 | Bidirectional drainage stopping valve |
JP2013253674A (en) * | 2012-06-08 | 2013-12-19 | Daikin Industries Ltd | Fluid pressure unit |
CN103603747A (en) * | 2013-08-10 | 2014-02-26 | 蒙国宁 | Intake pressure balancing adjuster for supercharged and intercooled gas engine |
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2016
- 2016-06-30 CN CN201610512495.5A patent/CN105937515B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0828511A (en) * | 1994-07-12 | 1996-02-02 | Kayaba Ind Co Ltd | Driving device of levee plastering machine |
CN1875176A (en) * | 2003-11-03 | 2006-12-06 | 贝洱两合公司 | Cooling circuit for a vehicle engine |
CN101490426A (en) * | 2006-07-25 | 2009-07-22 | 斯图奇公司 | A hydraulic connection assembly with a pressure discharge control, positionable between an onboard hydraulic circuit of an engineering vehicle and a removable hydraulic equipment |
CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
JP2013253674A (en) * | 2012-06-08 | 2013-12-19 | Daikin Industries Ltd | Fluid pressure unit |
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 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN109509933A (en) * | 2018-09-03 | 2019-03-22 | 蔚来汽车有限公司 | Battery cooling circuit, vehicle, battery storing station and electric charging station |
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