EP3553315A1 - Structure de soupape de compresseur - Google Patents

Structure de soupape de compresseur Download PDF

Info

Publication number
EP3553315A1
EP3553315A1 EP17881648.4A EP17881648A EP3553315A1 EP 3553315 A1 EP3553315 A1 EP 3553315A1 EP 17881648 A EP17881648 A EP 17881648A EP 3553315 A1 EP3553315 A1 EP 3553315A1
Authority
EP
European Patent Office
Prior art keywords
valve
discharge
reed
valve seat
leading end
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.)
Granted
Application number
EP17881648.4A
Other languages
German (de)
English (en)
Other versions
EP3553315A4 (fr
EP3553315B1 (fr
Inventor
Hiroyuki Ishida
Hideyuki Takahashi
Takayuki Endo
Hao He
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Japan Co Ltd
Original Assignee
Valeo Japan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Japan Co Ltd filed Critical Valeo Japan Co Ltd
Publication of EP3553315A1 publication Critical patent/EP3553315A1/fr
Publication of EP3553315A4 publication Critical patent/EP3553315A4/fr
Application granted granted Critical
Publication of EP3553315B1 publication Critical patent/EP3553315B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/12—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves

Definitions

  • the contact width in which the leading end of the reed valve comes into abutment with the valve plate preferably has a width enough to be sealable so as for the working fluid not to leak out, but if the area in which the leading end portion of the reed valve comes into contact with a valve seat portion is too large, there is a problem in that the reed valve is inhibited from opening due to the surface tension of a lubricant which is interposed between the leading end portion of the reed valve and the valve seat portion when the valve is closed, causing a decrease in performance or a vibration. For this reason, it is necessary to appropriately control the contact width in which the leading end of the reed valve comes into abutment with the valve plate.
  • the outer edge of the leading end portion of the reed valve is positioned inside the outer edge of the valve seat, with the reed valve closing the port, it is difficult for a lubricant to flow into between the reed valve and the valve seat along the outer edge of the reed valve, reducing the problem of a stiction of the reed valve (the problem of a disorder of valve opening timing due to the adhesion of the lubricant), and at the same time, the whole of the valve seat surface does not serve as an adsorption surface even when the lubricant flows into between the reed valve and the valve seat, so that it is possible to suppress the disorder of valve opening timing due to the adhesion of the lubricant.
  • a drive shaft 8 disposed in the crankcase 5 is rotatably retained in the front housing 6 and the cylinder block 2 via a bearing 9 (only the cylinder block side thereof is shown).
  • the drive shaft 8 protrudes from the front housing 6 and is connected to a not-shown travelling engine via a belt and a pulley, and the power of the travelling engine is transmitted to the drive shaft 8, causing the drive shaft 8 to rotate.
  • a suction port 20 and a discharge port 30 are formed in the valve plate 3 so as to correspond to each of the cylinder bores 12. Also, a suction chamber 18, in which to store a working fluid to be supplied to the compression chambers 17, and a discharge chamber 19, in which to store the working fluid discharged from the compression chambers 17, are demarcated in the cylinder head 4.
  • the suction chamber 18 is formed in the central portion of the cylinder head 4, and the discharge chamber 19 is annularly formed around the suction chamber 18.
  • the suction chamber 18 can communicate with the compression chambers 17 via the suction ports 20 which are opened and closed by respective suction valves 21 to be described hereafter.
  • the discharge chamber 19 can communicate with the compression chambers 17 via the discharge ports 30 which are opened and closed by respective discharge valves 31 to be described hereafter.
  • a suction valve seat 22 which is superimposed on and attached to the cylinder block side end surface of the valve plate 3 and has formed therein the suction valves 21, and a gasket 23, which is superimposed on the suction valve seat 22 and is sandwiched and fixed between the valve plate 3 and the cylinder block 2, are provided between the valve plate 3 and the cylinder block 2.
  • the cylinder block 2, gasket 23, suction valve seat 22, valve plate 3, discharge valve seat 32, gasket 34, and cylinder head 4 are positioned by not-shown positioning pins and fixed pressed against each other by the fastening bolts which fasten the component members of the housing 7.
  • Each of the discharge valves 31, being configured of a partial portion of the discharge valve seat 32, is integrally radially extended from the seat central portion. That is, a leading end portion 31a of each of the discharge valves 31 is disposed radially outside a base end portion 31b (the leading end portion 31a is disposed so as to be farther away from the center of the discharge valve seat 32 than the base end portion 31b) .
  • the speed of the piston 13 decreases toward the top dead center, and so the cylinder pressure starts to drop. Then, when the force based on the difference between the pressures acting on the front and back of the discharge valve 31 cannot exceed the spring force of the discharge valve 31 when at the maximum opening degree, the opening degree of the discharge valve 31 starts to decrease (in the drawing, at or after the rotation angle shown by III).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP17881648.4A 2016-12-12 2017-12-08 Structure de soupape de refoulement pour compresseur Active EP3553315B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016240052 2016-12-12
PCT/JP2017/044187 WO2018110449A1 (fr) 2016-12-12 2017-12-08 Structure de soupape de compresseur

Publications (3)

Publication Number Publication Date
EP3553315A1 true EP3553315A1 (fr) 2019-10-16
EP3553315A4 EP3553315A4 (fr) 2020-04-29
EP3553315B1 EP3553315B1 (fr) 2021-07-07

Family

ID=62559144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17881648.4A Active EP3553315B1 (fr) 2016-12-12 2017-12-08 Structure de soupape de refoulement pour compresseur

Country Status (4)

Country Link
EP (1) EP3553315B1 (fr)
JP (1) JPWO2018110449A1 (fr)
CN (1) CN110073105B (fr)
WO (1) WO2018110449A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021111546A1 (fr) * 2019-12-04 2021-06-10 三菱電機株式会社 Compresseur
DE102021125838A1 (de) 2021-10-05 2023-04-06 Solo Kleinmotoren Gmbh Kolben-Hochdruckpumpe mit kleinem Fördervolumen
CN114251252A (zh) * 2021-12-24 2022-03-29 广东美芝制冷设备有限公司 阀片、阀组件、压缩机以及制冷系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60222577A (ja) * 1984-04-20 1985-11-07 Tokico Ltd 圧縮機
EP0717191B1 (fr) * 1994-11-15 1999-01-13 Sanden Corporation Dispositif de clapet de refoulement d'un appareil à déplacement de fluide
JP2002242837A (ja) * 2001-02-14 2002-08-28 Sanyo Electric Co Ltd 冷媒圧縮機
JP4872480B2 (ja) * 2006-06-23 2012-02-08 パナソニック株式会社 圧縮機
JP2010169077A (ja) 2008-12-25 2010-08-05 Toyota Industries Corp 圧縮機
JP5559720B2 (ja) * 2010-03-31 2014-07-23 株式会社豊田自動織機 圧縮機
JP5652613B2 (ja) * 2011-03-08 2015-01-14 サンデン株式会社 圧縮機の弁装置

Also Published As

Publication number Publication date
CN110073105B (zh) 2021-12-03
CN110073105A (zh) 2019-07-30
EP3553315A4 (fr) 2020-04-29
JPWO2018110449A1 (ja) 2019-10-24
WO2018110449A1 (fr) 2018-06-21
EP3553315B1 (fr) 2021-07-07

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