WO1999028628A1 - Compresseur alternatif - Google Patents

Compresseur alternatif Download PDF

Info

Publication number
WO1999028628A1
WO1999028628A1 PCT/JP1998/005402 JP9805402W WO9928628A1 WO 1999028628 A1 WO1999028628 A1 WO 1999028628A1 JP 9805402 W JP9805402 W JP 9805402W WO 9928628 A1 WO9928628 A1 WO 9928628A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
discharge
plate
fixed
reciprocating compressor
Prior art date
Application number
PCT/JP1998/005402
Other languages
English (en)
Japanese (ja)
Inventor
Makoto Tabata
Kiyoshi Yoshii
Katsutoshi Enomoto
Katsuhiko Arai
Original Assignee
Zexel Corporation
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 Zexel Corporation filed Critical Zexel Corporation
Priority to KR1020007000592A priority Critical patent/KR20010022024A/ko
Publication of WO1999028628A1 publication Critical patent/WO1999028628A1/fr

Links

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
    • 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
    • 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

Definitions

  • the present invention relates to a reciprocating compressor such as a swash plate compressor and an oscillating plate compressor.
  • FIG. 5 is a partial cross-sectional view of a conventional swash plate type compressor in which a valve plate, a valve seat, and a stop plate are stacked.
  • the valve plate 103 is provided with a discharge port 103a for discharging the refrigerant gas from the compression chamber to the discharge chamber.
  • a tongue-shaped discharge valve portion 127a that opens and closes the discharge port 103a is formed in the valve sheet 127.
  • the stop plate 1229 is provided with a stop portion 1229a for suppressing an opening amount of the discharge valve portion 127a, and a discharge valve portion 127 is formed.
  • a discharge hole (not shown) is formed to allow the discharge port 103a to communicate with the compression chamber when a is opened.
  • valve plate 103 overlap each other, and the cylinder block and cylinder head (not shown) are shown. It is arranged between and.
  • the compression chamber is formed in a cylinder block and discharges The chamber is formed in the cylinder head.
  • the stopper portion 129a is formed in a shape having a predetermined angle or curvature with respect to the valve seat side end surface 129c of the fixed portion 129b.
  • Refrigerant gas flow is concentrated near the tip of discharge valve section 127a rather than near the boundary between discharge valve section 127b and valve body 127b, so discharge valve section 127a The impact force when sitting is increased.
  • the contact surface between the toe plate 127 and the valve sheet 127 is polished.
  • the valve sheet 12 The fulcrum of 7 may be greatly shifted.
  • the amount of opening of the discharge valve changes for each cylinder, so that the flow of the refrigerant gas changes, which causes a variation in compression and large pulsation.
  • the present invention has been made in view of such circumstances, and it is an object of the present invention to provide a reciprocating compressor having low power consumption, excellent durability, and low pulsation. And Disclosure of the invention
  • a reciprocating compressor is disposed between a cylinder block having a plurality of cylinders and a cylinder head, and is provided on the cylinder block side.
  • a high pressure chamber and a low pressure chamber located on the side of the cylinder head, and a valve plate formed on the valve plate, wherein the refrigerant gas in the compression chamber is supplied to the high pressure chamber.
  • a reciprocating compressor comprising: a stopper member having a stopper portion and a fixing portion fixed to the valve plate via the valve body. Steps are formed between them And wherein the door.
  • the reciprocating compressor according to the present invention is characterized in that a step-side corner of the fixed portion, which becomes a fulcrum when the valve portion is opened, has a curved shape.
  • Fig. 1 is a cross-sectional view along the line 1A-1A in Fig. 4 (a).
  • Fig. 1 (a) shows the valve when it is open, and
  • Fig. 1 (b) shows the valve when it is closed. It is a figure which shows each state.
  • FIG. 2 is a longitudinal sectional view of the swash plate type compressor according to one embodiment of the present invention.
  • FIG. 3 is an exploded perspective view showing a valve plate, a valve sheet, and a top plate.
  • Fig. 4 (a) is a plan view of a part of the stop plate when a noble plate, a valve sheet and a stop plate are stacked
  • Fig. 4 (b) is a plan view of Fig. 4 ( a) is a sectional view taken along line 4B-4B of FIG.
  • FIG. 5 is a partial cross-sectional view of a conventional swash plate compressor in which a valve plate, a valve sheet, and a top plate are stacked.
  • FIG. 2 is a vertical sectional view of a swash plate type compressor according to one embodiment of the present invention.
  • the front-side cylinder block 1 and the rear-side cylinder block 2 are axially opposed to each other.
  • One end of the joined cylinder blocks 1 and 2 is connected via a valve plate 3, a valve sheet (valve member) 27 and a stop plate (stopper member) 29.
  • the front head 4 is fixed, and the other end is connected via a valve plate 5, a valve sheet (valve member) 28 and a stop plate (stopper ⁇ ° member) 30.
  • Head 6 is fixed.
  • a shell 13 on the front side is provided on the front head 4, and a shell 14 on the rear side is provided integrally on the rear head 6.
  • the front shell 13 and the front shell 13 are provided integrally.
  • the shell 14 is fitted to the shell 14 via the O-ring 38 in the axial direction.
  • the front head 4, the cylinder blocks 1 and 2, the shells 13 and 14, and the rear head 6 are axially connected by a through port 39.
  • a drive shaft 7 is provided at the center of the cylinder blocks 1 and 2, and a swash plate 8 is fixed to the drive shaft 7, and the drive shaft 7 and the swash plate 8 are mounted on bearings 9 and 1. It is rotatably supported by 0.
  • the swash plate 8 is inclined with respect to an imaginary plane orthogonal to the drive shaft 7.
  • a plurality of cylinders 11 are installed in cylinder blocks 1 and 2. Has been damaged. Each of the cylinders 11 is parallel to the drive shaft 7 and is arranged at predetermined intervals in a circumferential direction around the drive shaft 7. A piston 12 is slidably accommodated in each cylinder 11.
  • Compression chambers 21 and 22 are formed on both sides of the piston 12 in each cylinder 11.
  • the piston 12 is connected to the swash plate via a substantially hemispherical shroud 19, 20.
  • the piston 12 reciprocates in the cylinder 11 as the swash plate 8 rotates. Exercise 9 '.
  • Fig. 3 is an exploded perspective view showing a valve plate, a valve sheet, and a stop plate
  • Fig. 4 (a) shows a valve plate, a valve sheet, and a top plate in an overlaid state.
  • Fig. 4 (b) is a cross-sectional view taken along line 4B-4B in Fig. 4 (a)
  • Fig. 4 is a cross-sectional view of a part of the storage plate.
  • Fig. 1 (a) is a cross-sectional view taken along the line 1A-1A.
  • Fig. 1 (a) shows the state when the valve is open
  • Fig. 1 (b) shows the state when the valve is closed. is there.
  • Discharge ports 3a and 5a for discharging refrigerant gas from the compression chambers 21 and 22 to the discharge chamber (high-pressure chamber) 24 are supplied to the substantially disk-shaped valve plates 3 and 5, and are sucked in during suction.
  • Suction valve escape holes 3b, 5b for allowing the valve sections 27d, 28d to escape to the compression chambers 21, 22 side, and port through holes 3c, 5 for inserting through ports 39. c is formed respectively.
  • the suction valve escape holes 3b and 5b are adjacent to the suction ports 29d and 30d via the suction valve portions 27d and 28d, respectively.
  • Inlet port when 8d is open Communicates with 29 d and 30 d.
  • the substantially disk-shaped valve sheets 27 and 28 have tongue-shaped discharge valve parts (valve parts) 27a and 28a and tongue-shaped suction valve parts 27d and 28d. Each of the cutouts is formed, and port through holes 27c and 28c are formed.
  • the substantially disk-shaped stop plates 29, 30 include stopper portions 29a, 30a for suppressing the opening or deformation of the discharge valve portions 27a, 28a.
  • the suction ports (29d, 30d) for sucking the refrigerant gas from the suction chamber (low-pressure chamber) 23 into the compression chambers 21 and 22 and the bolt through holes 29c and 30c are provided. Each is formed.
  • stop plates 29, 30 have a stove,. Department
  • Discharge holes 29b and 30b are formed along the longitudinal direction of 29a and 30a.
  • the stopper portions 29a and 30a are formed by grooves formed on the compression chamber side end surfaces of the stop plates 29 and 30.
  • Step portions 29f and 30f are formed between the opening portions 29a and 30a and the fixed portions 29e and 30e.
  • the stepped corner P of the fixed portions 29 e, 30 e of the stop plates 29, 30, which serves as the fulcrum of the discharge valve portion 27 a 28 a during lifting, has a curved shape .
  • the discharge valves 3 a and 5 a face the discharge valves 27 a and 28 a, and discharge ports 3 a and 5 a of the valve plates 3 and 5 and discharge of the stop plates 29 and 30. Via holes 29b and 3Ob The compression chambers 21 and 22 communicate with the discharge chamber 24.
  • valve bodies 27 e, 28 e connected to the discharge valve sections 27 a, 28 a are fixed to the fixed parts 29 e, 30 e of the toe plates 29, 30 and the knob plate 3, It is fixed by 5 and.
  • the swash plate 8 When the drive shaft 7 rotates, the swash plate 8 also rotates integrally. The rotation of the swash plate 8 causes the piston 12 to reciprocate in the cylinder 11. The swash plate 8 rotates 1 Z2 from the position where piston 1 2 is closest to valve plate 3 (when piston 12 is located at the top dead center on the compression chamber 21 side). Then, the piston 12 moves to the valve plate 5 side, the suction stroke is completed in the compression chamber 21 side, and the compression stroke and the discharge stroke are completed in the compression chamber 22. When the swash plate 8 further rotates by ⁇ from this state, the suction stroke is completed in the compression chamber 22, and the compression stroke and the discharge stroke are completed in the compression chamber 21.
  • the suction valve portions 27d and 28d elastically deform to the suction valve release holes 3b and 5b, and the suction ports 29d and 30d and the suction valve release holes.
  • Low-pressure refrigerant gas flows into the compression chambers 21 and 22 through 3b and 5b.
  • the discharge valves 27a and 28a are elastically deformed toward the discharge chamber side by the refrigerant gas compressed in the compression chambers 21 and 22 and the discharge ports 3a and 5a
  • the high-pressure coolant gas is discharged from the compression chambers 21 and 22 to the discharge chamber 24 through the discharge holes 29b and 30b.
  • Steps 29 f, 30 f ⁇ Each discharge valve part 27 a, 28
  • the position of the fulcrum when a is lifted becomes constant and the amount of lift of each discharge valve part 27a, 28a becomes uniform, so that there is no variation in compression, and compression
  • the pulsation due to the variation of the pulsation is reduced.
  • the discharge valve sections 27a and 28a are opened, the steps 27f and 28f near the fulcrum of the discharge valve sections 27a and 28a due to the discharge pressure of the refrigerant gas.
  • 28 f see Fig. 1 (a)
  • the valve opening of the discharge valve sections 27a and 28a increases, and the flow of refrigerant gas is improved. Power consumption is reduced.
  • the flow of the refrigerant gas does not concentrate on the leading end of the discharge valve portions 27a, 28a, and when the discharge valve portions 27a, 28a are closed, the discharge valve portions 27a, 28a, Since the impact force applied to 28 a is reduced, noise is reduced and the durability of the discharge valve sections 27 a and 28 a is improved.
  • the discharge valve portions 27a and 28a are opened, the discharge valve portions 27a and 28a are connected to the fixed portions 29e and 3Oe of the top plate 29 and 30. It is supported by the curved surface of the step side corner P, and the force acting on the discharge valves 27a and 28a is not concentrated at one place, so the durability of the discharge valves 27a and 28a Is improved.
  • the invention of the present application is applied to a swash plate type compressor with a shell.
  • the invention can be applied to a compressor having no shell.
  • the reciprocating compressor according to the present invention It is useful as a refrigerant compressor for air conditioners.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

L'invention porte sur un compresseur alternatif dont les joues (29, 30) comportent des butées (29a, 30a), des parties fixes (29e, 30e) ainsi que des parties en gradin reliant les butées (29a, 30a) aux parties fixes (29e, 30e) et servant de points d'appui autour desquels pivotent les soupapes de décharge (27a, 28a).
PCT/JP1998/005402 1997-12-01 1998-12-01 Compresseur alternatif WO1999028628A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020007000592A KR20010022024A (ko) 1997-12-01 1998-12-01 왕복식 압축기

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9/345840 1997-12-01
JP34584097A JP3772283B2 (ja) 1997-12-01 1997-12-01 往復式圧縮機

Publications (1)

Publication Number Publication Date
WO1999028628A1 true WO1999028628A1 (fr) 1999-06-10

Family

ID=18379348

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/005402 WO1999028628A1 (fr) 1997-12-01 1998-12-01 Compresseur alternatif

Country Status (3)

Country Link
JP (1) JP3772283B2 (fr)
KR (1) KR20010022024A (fr)
WO (1) WO1999028628A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014207791A1 (fr) * 2013-06-24 2014-12-31 株式会社日立産機システム Machine hydraulique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450206U (fr) * 1977-09-14 1979-04-07
JPS5777769U (fr) * 1980-10-29 1982-05-13
JPH0589876U (ja) * 1992-05-06 1993-12-07 株式会社豊田自動織機製作所 ピストン式圧縮機の吸入リード弁機構

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5450206U (fr) * 1977-09-14 1979-04-07
JPS5777769U (fr) * 1980-10-29 1982-05-13
JPH0589876U (ja) * 1992-05-06 1993-12-07 株式会社豊田自動織機製作所 ピストン式圧縮機の吸入リード弁機構

Also Published As

Publication number Publication date
JP3772283B2 (ja) 2006-05-10
JPH11166479A (ja) 1999-06-22
KR20010022024A (ko) 2001-03-15

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