EP1548281A3 - Piston type compressor - Google Patents

Piston type compressor Download PDF

Info

Publication number
EP1548281A3
EP1548281A3 EP04028621A EP04028621A EP1548281A3 EP 1548281 A3 EP1548281 A3 EP 1548281A3 EP 04028621 A EP04028621 A EP 04028621A EP 04028621 A EP04028621 A EP 04028621A EP 1548281 A3 EP1548281 A3 EP 1548281A3
Authority
EP
European Patent Office
Prior art keywords
compression chamber
cylinder block
forms
type compressor
communicates
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.)
Withdrawn
Application number
EP04028621A
Other languages
German (de)
French (fr)
Other versions
EP1548281A2 (en
Inventor
Yoshinori K. K. Toyota Jidoshokki Inoue
Hisato K. K. Toyota Jidoshokki Kawamura
Shigeki K. K. Toyota Jidoshokki Kawachi
Masanori K. K. Toyota Jidoshokki Masuda
Junichi K. K. Toyota Jidoshokki Takahata
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.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
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 Toyota Industries Corp filed Critical Toyota Industries Corp
Publication of EP1548281A2 publication Critical patent/EP1548281A2/en
Publication of EP1548281A3 publication Critical patent/EP1548281A3/en
Withdrawn legal-status Critical Current

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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • 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
    • F04B27/0804—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 rotary cylinder block
    • F04B27/0821—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 rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
    • F04B27/0834—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 rotary cylinder block component parts, details, e.g. valves, sealings, lubrication cylinder barrel
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/123—Fluid connections

Abstract

In a piston type compressor, a housing includes a cylinder block that forms plural cylinder bores and an accommodating hole at a center thereof. The valve port assembly connected to the cylinder block includes suction and discharge ports, suction and discharge valves made of flapper valves. An end portion of the drive shaft rotatably supported by the housing is slidably accommodated in the accommodating hole. The piston in each cylinder bore and the valve port assembly form a compression chamber. The cylinder block forms therein communication holes that connect each compression chamber to the end portion that forms therein a residual gas bypass passage. The residual gas bypass passage connects one communication hole, which communicates with the high-pressure side compression chamber that has finished discharge process of gas, to another communication hole, which communicates with the compression chamber that is lower in pressure than the high-pressure side compression chamber.
EP04028621A 2003-12-04 2004-12-02 Piston type compressor Withdrawn EP1548281A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003406053 2003-12-04
JP2003406053A JP2005163714A (en) 2003-12-04 2003-12-04 Piston type compressor

Publications (2)

Publication Number Publication Date
EP1548281A2 EP1548281A2 (en) 2005-06-29
EP1548281A3 true EP1548281A3 (en) 2005-09-28

Family

ID=34544887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04028621A Withdrawn EP1548281A3 (en) 2003-12-04 2004-12-02 Piston type compressor

Country Status (3)

Country Link
US (1) US20050158182A1 (en)
EP (1) EP1548281A3 (en)
JP (1) JP2005163714A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008031857A (en) 2006-07-26 2008-02-14 Calsonic Kansei Corp Compressor
JP5240311B2 (en) * 2011-03-15 2013-07-17 株式会社豊田自動織機 Cylinder block of piston type compressor and cylinder block processing method of piston type compressor
JP5812019B2 (en) * 2013-01-31 2015-11-11 株式会社豊田自動織機 Piston type variable capacity compressor
JP6477441B2 (en) * 2015-11-20 2019-03-06 株式会社豊田自動織機 Variable capacity swash plate compressor
JP7056615B2 (en) * 2018-03-30 2022-04-19 株式会社豊田自動織機 Piston compressor
CN110410296A (en) * 2019-08-14 2019-11-05 珠海格力节能环保制冷技术研究中心有限公司 Compressor and refrigeration equipment with it
CN112392719B (en) * 2020-11-20 2022-04-19 四川省机械技术服务中心有限责任公司 High-efficient compact plunger pump plunger device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231308A (en) * 1992-02-20 1993-09-07 Toyota Autom Loom Works Ltd Structure of seal in piston type compressor
US5380168A (en) * 1993-01-25 1995-01-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape
US5380165A (en) * 1992-10-02 1995-01-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Reciprocating-piston type refrigerant compressor with an improved rotary-type suction-valve mechanism
US5385450A (en) * 1992-10-02 1995-01-31 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Reciprocating-piston type refrigerant compressor with an improved rotary-type suction-valve mechanism
US5562425A (en) * 1994-08-16 1996-10-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Gas suction structure in piston type compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231308A (en) * 1992-02-20 1993-09-07 Toyota Autom Loom Works Ltd Structure of seal in piston type compressor
US5380165A (en) * 1992-10-02 1995-01-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Reciprocating-piston type refrigerant compressor with an improved rotary-type suction-valve mechanism
US5385450A (en) * 1992-10-02 1995-01-31 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Reciprocating-piston type refrigerant compressor with an improved rotary-type suction-valve mechanism
US5380168A (en) * 1993-01-25 1995-01-10 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Axial multi-piston compressor having rotary valve for allowing residual part of compressed fluid to escape
US5562425A (en) * 1994-08-16 1996-10-08 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Gas suction structure in piston type compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 686 (M - 1529) 15 December 1993 (1993-12-15) *

Also Published As

Publication number Publication date
JP2005163714A (en) 2005-06-23
EP1548281A2 (en) 2005-06-29
US20050158182A1 (en) 2005-07-21

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