WO2024001519A1 - Soupape d'étranglement et de surpression intégrée et compresseur la comprenant - Google Patents

Soupape d'étranglement et de surpression intégrée et compresseur la comprenant Download PDF

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Publication number
WO2024001519A1
WO2024001519A1 PCT/CN2023/092537 CN2023092537W WO2024001519A1 WO 2024001519 A1 WO2024001519 A1 WO 2024001519A1 CN 2023092537 W CN2023092537 W CN 2023092537W WO 2024001519 A1 WO2024001519 A1 WO 2024001519A1
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WO
WIPO (PCT)
Prior art keywords
pressure relief
pressure
throttling
relief valve
throttle
Prior art date
Application number
PCT/CN2023/092537
Other languages
English (en)
Chinese (zh)
Inventor
黄志刚
徐天赐
牟英涛
Original Assignee
上海海立新能源技术有限公司
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Filing date
Publication date
Application filed by 上海海立新能源技术有限公司 filed Critical 上海海立新能源技术有限公司
Publication of WO2024001519A1 publication Critical patent/WO2024001519A1/fr

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Classifications

    • 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
    • F16K17/048—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 combined with other safety valves, or with pressure control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths

Definitions

  • the present invention relates to the field of compressors, and specifically to an integrated throttle and pressure relief valve and a compressor including the same.
  • the compressor is the core component of the air conditioning system and the power source for the operation of the entire system.
  • the compressor compresses the low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas.
  • the high-temperature and high-pressure gas passes through the condenser, throttling device, evaporator, etc. and is converted back into low-temperature and low-pressure gas back to the compressor.
  • Discharge pressure is an important technical parameter that needs to be paid attention to in actual use of the compressor. Excessive exhaust pressure will reduce the safety and reliability of the compressor and reduce the service life of the compressor. Therefore, when the exhaust pressure is detected to be too high, it needs to be pressure relieved.
  • the two functional areas of the compressor, throttling and pressure relief are designed independently.
  • the current throttling and pressure reduction function is often achieved by drilling holes in the static scroll, housing and other components and installing oil return capillaries or throttling bolts.
  • the patent (CN111648962A) discloses a horizontal scroll compressor.
  • the throttling device of the compressor is equipped with a filter assembly, a threaded column and a base.
  • the spiral gap channel formed by the threaded column and the base is used to achieve Throttle.
  • the throttling mechanism used in this patent is a threaded column.
  • the purpose of the present invention is to provide an integrated throttle and pressure relief valve and a compressor including the same.
  • the integrated throttle and pressure relief valve belt can not only complete the pressure relief function, but also complete the throttle function.
  • the flow reduction function can achieve the effect of reducing parts, saving space and reducing manufacturing costs.
  • a first aspect of the present invention provides an integrated throttle and pressure relief valve for connecting with the high-pressure air flow channel of the high-pressure housing of the compressor, including a throttle part, a pressure relief part, and a throttle part connected in sequence. a connecting piece between the flow pressure relief valve and the high-pressure air flow channel and a first sealing member for sealing the throttle pressure relief valve and the high-pressure air flow channel;
  • the throttling part is provided with a first airflow channel
  • the pressure relief part is provided with a hollow cavity that accommodates a piston and a telescopic structure that drives the piston to reciprocate, and at least one second airflow channel that connects the hollow cavity with the space outside the throttle and pressure relief valve;
  • the first airflow channel is not connected to the hollow cavity
  • the throttling part and the pressure relief part are integrated.
  • the throttling part and the pressure relief part are detachably connected.
  • one end of the throttle part connected to the pressure relief part is provided with a guide rod
  • one end of the pressure relief part connected to the throttle part is provided with a guide rod adapted to the guide rod. Equipped with a guide groove, the throttling part and the pressure relief part are connected through an interference fit between the guide rod and the guide groove; or
  • One end of the pressure relief part connected to the throttle part is provided with a guide rod, and one end of the throttle part connected to the pressure relief part is provided with a guide groove adapted to the guide rod.
  • Ryube and The pressure relief part is connected through an interference fit between the guide rod and the guide groove.
  • the connecting member is a first thread, and the first thread is provided on the outer peripheral surface of the throttling part; and/or
  • the connecting member is a second thread, and the second thread is provided on the outer peripheral surface of the pressure relief part.
  • the integrated throttle and pressure relief valve further includes a head portion connected to an end of the pressure relief portion facing away from the throttle portion.
  • the first sealing member is an annular elastic member.
  • the first sealing member is sleeved on the pressure relief portion;
  • the first sealing member is sleeved between the pressure relief part and the head.
  • the throttling part is made of resin material or metal material.
  • the integrated throttle and pressure relief valve further includes a second seal
  • the second sealing member is a first annular protruding structure provided in the hollow cavity.
  • the second sealing member is a second annular protruding structure disposed on one end of the piston facing the first air flow channel.
  • the second annular protruding structure is close to The inner walls of the hollow cavity of the first airflow channel conflict with each other.
  • a second aspect of the present invention provides a compressor, including the integrated throttle and pressure relief valve
  • the high-pressure housing of the compressor is provided with a high-pressure airflow channel and a low-pressure airflow channel;
  • the throttling part is gap-connected with the high-pressure air flow channel, and the low-pressure air flow channel is connected with the gap between the throttling part and the high-pressure air flow channel.
  • the integrated throttling and pressure relief valve of the present invention integrates the pressure relief function and the throttling function into one component, making full use of the space occupied by the pressure relief valve arrangement. There is no need to arrange an additional throttling mechanism, which simplifies the manufacturing process. The whole machine is easy to install and can be used for automated production, greatly reducing manufacturing costs.
  • Figure 1 is a cross-sectional view of a pressure relief valve according to an embodiment of the present invention.
  • Figure 2 is a schematic structural diagram of a pressure relief valve according to an embodiment of the present invention.
  • Figure 3 is a schematic structural diagram of a throttling part according to an embodiment of the present invention.
  • Figure 4 is a partial structural schematic diagram of a compressor according to an embodiment of the present invention.
  • Figure 5 is a working state diagram of the pressure relief valve during pressure relief according to an embodiment of the present invention.
  • FIG. 6 is a working state diagram of the throttling part according to an embodiment of the present invention.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concepts of the example embodiments. To those skilled in the art.
  • the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments.
  • first, second, etc. are used herein to refer to various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.
  • first interface and the second interface are represented.
  • singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context indicates otherwise.
  • the terms “comprising” and “including” indicate the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not exclude one or more other features, steps, operations, The presence, occurrence, or addition of elements, components, items, categories, and/or groups.
  • the present invention provides an integrated throttling and pressure relief valve for connecting with the high-pressure air flow channel of the high-pressure housing of the compressor, including a throttling part and a pressure relief part connected in sequence.
  • a connector for connecting the throttle pressure relief valve and the high-pressure air flow channel, and a first seal for sealing the throttle pressure relief valve and the high-pressure air flow channel;
  • the throttle part is provided with a first air flow channel;
  • the pressure part is provided with a hollow cavity that accommodates the piston and a telescopic structure that drives the piston to reciprocate, and at least one second airflow channel that connects the hollow cavity with the space outside the throttle and pressure relief valve; when the When the piston is in the first state, the first airflow channel and the hollow cavity The bodies are not connected; when the piston is in the second state, the first air flow channel, the hollow cavity and the second air flow channel are connected.
  • the integrated throttling and pressure relief valve of the present invention can perform both the pressure relief function and the throttling and pressure reducing function, thereby achieving the effects of reducing parts, saving space, and reducing manufacturing costs.
  • integrated means that the valve component of the throttling and pressure relief valve integrates the pressure relief function and the throttling and pressure reducing function into one body.
  • the throttle and pressure relief valve may be an integrally molded part or an assembly of multiple components.
  • Figures 1 and 2 are respectively a cross-sectional view and a structural schematic diagram of a pressure relief valve according to an embodiment of the present invention.
  • the integrated throttle and pressure relief valve is used to connect with the high-pressure air flow channel of the high-pressure housing of the compressor. It includes a throttle part 1, a pressure relief part 2 connected in sequence, a connector for connecting the high-pressure air flow channel of the throttle and pressure relief valve and the high-pressure housing, and a high-pressure air flow channel for sealing the throttle and pressure relief valve and the high-pressure housing.
  • the first seal 4 4.
  • the throttle part 1 is provided with a first airflow channel 100; the pressure relief part 2 is provided with a hollow cavity 21 that accommodates a piston 200 and a telescopic structure 300 that drives the piston to reciprocate, and communicates with the hollow cavity. 21 and at least one second airflow channel 400 in the space outside the throttle and pressure relief valve.
  • the first airflow channel 100 When the piston is in the first state, the first airflow channel 100 is not connected with the hollow cavity 21 .
  • the state of the piston 200 when it is at the upper end of the hollow cavity 21 is the first state.
  • the piston 200 faces one end of the throttle part 1 and the hollow cavity at the outlet of the first airflow channel 100 21 collides with each other, and the contact surface between the piston 200 and the hollow cavity 21 has a relatively high flatness.
  • the collision occurs, the communication channel between the first airflow channel 100 and the hollow cavity 21 is cut off.
  • the integrated throttle and pressure relief valve also includes a second seal.
  • the second sealing member is a first annular protruding structure 500 provided in the hollow cavity.
  • the first annular protruding structure 500 and The piston is in conflict with one end of the piston facing the first airflow channel; in other embodiments, the second sealing member may be a second sealing member disposed on one end of the piston facing the first airflow channel.
  • Annular protrusion structure when the piston is in the first state, the second annular protrusion structure conflicts with the inner wall of the hollow cavity close to the first air flow channel.
  • the first airflow channel 100 , the hollow cavity 21 and the second airflow channel 400 are connected.
  • both are in the second state of the piston.
  • the first air flow channel 100 is connected to the upper space of the hollow cavity 21.
  • the lower space of the hollow cavity 21 is connected to the second air flow channel 400. It can be seen that out, the piston is in the second state, which is the pressure relief state.
  • the telescopic structure 300 of the present invention can be a spring, a rubber elastic material, a pipe telescopic device, etc. Any telescopic structure that can drive a piston to reciprocate in a hollow cavity can be used in the present invention.
  • the elastic force of the telescopic structure needs to be able to conflict with one end of the piston 100 and the end face of the hollow cavity 21; when the pressure of the high-pressure airflow channel of the high-pressure shell of the compressor When it is greater than the critical pressure, the pressure of the air flow channel needs to be able to overcome the elastic force of the telescopic structure so that one end of the piston does not conflict with the end surface of the hollow cavity 21 .
  • the pressure relief part and the throttling part of the integrated throttle and pressure relief valve may be integrally processed, that is, the throttling part and the pressure relief part are one piece, and the throttling part and the pressure relief part are fixedly connected.
  • the integrated throttle and pressure relief valve can be connected to the high-pressure air flow channel of the high-pressure shell of the compressor through a connecting piece.
  • the connecting member may be a first thread 32 provided on the outer peripheral surface of the throttle part, and is adapted to the thread in the air flow passage of the high-pressure housing of the compressor.
  • the connecting piece may also be a second thread 31 provided on the outer peripheral surface of the pressure relief part, and adapted to the thread in the air flow passage of the high-pressure housing of the compressor.
  • both the throttle part 1 and the pressure relief part 2 are provided with threaded connectors, they are divided into two functional areas, the first thread 32 area of the throttle part and the second thread 31 area of the pressure relief part 2.
  • the compressor is normal During operation, since the throttling part and the high-pressure airflow channel have a clearance fit (discussed below), the high-pressure gas makes the throttling part tend to move toward the pressure relief part.
  • the second thread 31 area of the pressure relief part 2 serves as an integral part.
  • the throttle and pressure relief valve is fixed in the area of the high-pressure airflow channel. At this time, the pressure relief part 2 plays a limiting role on the throttle part 1, which can ensure that the throttle part 1 remains relatively stationary when subjected to high exhaust pressure.
  • the diameter of the pressure relief part 2 can be designed to be greater than or equal to the diameter of the throttle part 1.
  • the second screw The diameter of the thread 31 is greater than or equal to the diameter of the first thread 32 .
  • the length of the second thread 31 of the pressure relief valve can be appropriately increased so that the threaded area of the pressure relief portion can further play a role in fixedly connecting the high-pressure air flow channel.
  • the first sealing member 2 can be an annular elastic member, and the first sealing member 4 can be sleeved on the pressure relief portion 2 .
  • the first seal 4 can be made of elastic rubber material, such as an O-ring or a sealing gasket.
  • the high-pressure air flow channel sealing method of the throttle pressure relief valve and the high-pressure shell should be sealed in different ways according to the different working pressures of the compressor.
  • O-ring seals can be used for sealing
  • the exhaust pressure is high (such as CO2 compressors)
  • sealing gaskets can be used for sealing.
  • the pressure relief part 2 may be provided with an annular groove for positioning an O-ring or a sealing gasket.
  • the throttling part 1 and the pressure relief part 2 may be separated, that is, they are detachably connected, and they are assembled into one piece during use.
  • Figure 3 is a schematic structural diagram of the throttling part of this embodiment.
  • One end of the throttling part 1 connected to the pressure relief part 2 is provided with a guide rod 12; the pressure relief part 2 is connected to the pressure relief part 2.
  • One end connected to the throttling part 1 is provided with a guide groove that matches the guide rod 12; the throttling part 1 and the pressure relief part 2 pass through the guide rod 12 and the guide groove. Profit fit connection.
  • a guide rod is provided at one end of the pressure relief part 2 connected to the throttle part 1, and an end connected to the throttle part 1 and the pressure relief part 2 is provided with the guide rod. 12 adapted guide grooves are also a feasible solution.
  • the throttling part 1 of the present invention may be made of resin material or metal material.
  • the advantage of the detachable throttling part 1 and the pressure relief part 2 is that they can be prepared separately, which reduces the difficulty of preparing an integrated throttling and pressure relief valve, especially the pressure relief part provided with a hollow cavity.
  • the detachable throttling part 1 and the pressure relief part 2 facilitate the installation of the pressure relief valve in the high-pressure air flow channel of the high-pressure housing of the compressor.
  • the integrated throttle and pressure relief valve may also include a head 5 , and the head 5 and the pressure relief part 2 are away from the One end of the throttling part 1 is connected, and the cross section of the head 5 can be hexagonal to match existing wrenches and other tools.
  • the first seal 4 can be sleeved on the pressure relief part 2 and the head 5, as shown in Figure 1.
  • the present invention also provides a compressor 9 including the above-mentioned integrated throttle and pressure relief valve.
  • Figure 4 is A partial structural schematic diagram of a compressor according to an embodiment of the present invention; wherein, the high-pressure housing of the compressor is provided with a high-pressure airflow channel 91 and a low-pressure airflow channel 92; there is a gap between the throttle portion 1 and the high-pressure airflow channel 91 connected, and the low-pressure air flow channel 92 is connected with the gap between the throttle part and the high-pressure air flow channel 91 .
  • the following is a further explanation of the structure and basic parameters of each component through the working principle of the integrated throttle and pressure relief valve.
  • the pressure of the high-pressure airflow channel is greater than the critical pressure, that is, when the exhaust pressure is higher than the rated pressure relief pressure of the pressure relief valve, the integrated throttle pressure relief valve starts to relieve pressure.
  • Figure 5 shows the pressure relief valve relief valve according to one embodiment of the present invention.
  • the working state diagram of the pressure relief valve in which the solid arrow is the discharge channel of high-pressure gas when the throttle and pressure relief valve releases pressure, and the dotted arrow is the throttling and oil return channel of high-pressure lubricating oil.
  • the piston 200 is connected with the end surface of the hollow cavity 2 or with the first annular protruding structure 500. separation, the high-pressure gas enters the upper space of the hollow cavity 2. At the same time, the high-pressure gas of the hollow cavity 2 flows from both sides of the piston to the lower space of the hollow cavity 2 until the second air flow channel 400, which is connected to the atmosphere. , that is, the high-pressure gas is discharged from the compressor from the second air flow channel 400 . As the high-pressure gas is discharged, the pressure of the high-pressure air flow channel becomes smaller.
  • the telescopic structure When the exhaust pressure is slightly lower than the rated pressure relief pressure of the throttle and pressure relief valve, the telescopic structure re-presses the piston on the end face of the hollow cavity 2 or in contact with the first pressure relief valve.
  • the annular convex structure cuts off the passage between the first air flow channel 10 and the hollow cavity 2 to block the pressure relief, and the pressure relief is completed.
  • FIG. 6 is a working state diagram of the throttling part according to an embodiment of the present invention.
  • the size of the throttling effect is related to the throttling area and throttling length. The smaller the throttling area, the longer the throttling length, and the better the throttling effect.
  • the first thread 32 is provided on the outer circumference of the throttle part 1, the first thread 32 can form a fine flow structure with the inner wall of the high-pressure airflow channel 91. Through the small and long channel here, this gap channel is connected with the high-pressure shell.
  • the low-pressure fluid channel provided in the body is connected to realize the lubricating oil returning to the low-pressure chamber or medium-pressure chamber of the compressor to complete the throttling process.
  • the gap connection between the throttle part 1 and the high-pressure airflow channel 91 is not limited to the threaded connection method mentioned above. In actual use, the gap between the throttle part 1 and the high-pressure airflow channel needs to be designed. Ensure that the difference between the actual flow area and the calculated flow area is as small as possible to ensure the required throttling effect.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Compressor (AREA)
  • Safety Valves (AREA)

Abstract

La présente invention concerne une soupape d'étranglement et de surpression intégrée, qui est configurée pour être reliée à un canal d'écoulement d'air à haute pression (91) d'un boîtier à haute pression d'un compresseur. La soupape d'étranglement et de surpression intégrée comprend : une partie d'étranglement (1), une partie de surpression (2), un raccord et un premier joint d'étanchéité (4), qui est utilisé pour sceller de manière étanche la soupape d'étranglement et de surpression et le canal d'écoulement d'air à haute pression, la partie d'étranglement (1), la partie de surpression (2), le raccord et le premier joint d'étanchéité (4) étant reliés en séquence. La partie d'étranglement (1) comporte un premier canal d'écoulement d'air (100). La partie de surpression (2) comporte une cavité creuse (21), qui reçoit un piston (200) et une structure extensible (300) pour amener le piston à effectuer un mouvement de va-et-vient ; et au moins un second canal d'écoulement d'air (400), qui fait communiquer la cavité creuse avec l'espace externe de la soupape d'étranglement et de surpression. Lorsque le piston est dans un premier état, le premier canal d'écoulement d'air n'est pas en communication avec la cavité creuse ; et lorsque le piston est dans un second état, le premier canal d'écoulement d'air, la cavité creuse et le second canal d'écoulement d'air sont en communication. Dans la soupape d'étranglement et de surpression intégrée, une fonction de surpression et une fonction d'étranglement sont intégrées dans un seul composant, ce qui permet de réduire le nombre de pièces, d'économiser de l'espace et de réduire le coût de fabrication. La présente invention concerne en outre un compresseur comprenant la soupape d'étranglement et de surpression.
PCT/CN2023/092537 2022-06-27 2023-05-06 Soupape d'étranglement et de surpression intégrée et compresseur la comprenant WO2024001519A1 (fr)

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CN202210736557.6 2022-06-27
CN202210736557.6A CN114992363A (zh) 2022-06-27 2022-06-27 一体式节流泄压阀及包括其的压缩机

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114992363A (zh) * 2022-06-27 2022-09-02 上海海立新能源技术有限公司 一体式节流泄压阀及包括其的压缩机

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JP2009092188A (ja) * 2007-10-11 2009-04-30 Advics:Kk 流体制御弁
CN111120307A (zh) * 2019-11-22 2020-05-08 珠海格力节能环保制冷技术研究中心有限公司 涡旋压缩机及具有其的空调器
CN112212020A (zh) * 2020-09-07 2021-01-12 珠海格力电器股份有限公司 气动可调的节流阀、制冷系统及空调
CN114992363A (zh) * 2022-06-27 2022-09-02 上海海立新能源技术有限公司 一体式节流泄压阀及包括其的压缩机
CN217463352U (zh) * 2022-06-27 2022-09-20 上海海立新能源技术有限公司 一体式节流泄压阀及包括其的压缩机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447920A (en) * 1946-07-03 1948-08-24 Cash A W Co Flow-proportioning valve
JP2009092188A (ja) * 2007-10-11 2009-04-30 Advics:Kk 流体制御弁
CN111120307A (zh) * 2019-11-22 2020-05-08 珠海格力节能环保制冷技术研究中心有限公司 涡旋压缩机及具有其的空调器
CN112212020A (zh) * 2020-09-07 2021-01-12 珠海格力电器股份有限公司 气动可调的节流阀、制冷系统及空调
CN114992363A (zh) * 2022-06-27 2022-09-02 上海海立新能源技术有限公司 一体式节流泄压阀及包括其的压缩机
CN217463352U (zh) * 2022-06-27 2022-09-20 上海海立新能源技术有限公司 一体式节流泄压阀及包括其的压缩机

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