EP0995905A3 - Piston for compressor - Google Patents

Piston for compressor Download PDF

Info

Publication number
EP0995905A3
EP0995905A3 EP99120640A EP99120640A EP0995905A3 EP 0995905 A3 EP0995905 A3 EP 0995905A3 EP 99120640 A EP99120640 A EP 99120640A EP 99120640 A EP99120640 A EP 99120640A EP 0995905 A3 EP0995905 A3 EP 0995905A3
Authority
EP
European Patent Office
Prior art keywords
piston
groove
grooves
coating layer
head
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Withdrawn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
EP99120640A
Other languages
German (de)
French (fr)
Other versions
EP0995905A2 (en
Inventor
Manabu K.K. Toyoda Jidoshokki Seisakusho Sugiura
Kazushige K.K.Toyoda Jidoshokki Seisakusho Murao
Takahiro K.K.Toyoda Jidoshokki Seisakusho Hoshida
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
Toyoda Jidoshokki Seisakusho KK
Toyoda Automatic Loom Works 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 Toyoda Jidoshokki Seisakusho KK, Toyoda Automatic Loom Works Ltd filed Critical Toyoda Jidoshokki Seisakusho KK
Publication of EP0995905A2 publication Critical patent/EP0995905A2/en
Publication of EP0995905A3 publication Critical patent/EP0995905A3/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Withdrawn legal-status Critical Current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
    • 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
    • F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
    • F04B27/0878—Pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/14—Self lubricating materials; Solid lubricants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating

Abstract

A piston (20) having a groove (22b, 22c) that is formed on a surface of a piston workpiece (20W) and a method for forming the groove (22b, 22c) on the piston (20). A head (22) of the piston (20) is accommodated in a corresponding cylinder bore. A first groove (22b, 22c) and a second groove (22b, 22c) are formed on the peripheral surface (22a) of the piston (20). The first groove (22b, 22c) scrapes lubricant oil from the inner surface of the cylinder bore and the second groove (22b, 22c) conveys the oil to the crank chamber. A coating layer (C) is formed on the peripheral surface (22a)of the head (22). The coating layer (C) is not formed on the areas that are designated for the first and second grooves (22b, 22c) on the peripheral surface (22a) of the head (22) of the piston workpiece (20W). Accordingly, the first and second grooves (22b, 22c) have a depth equal to the thickness of the coating layer (C). Since the coating layer (C) is used to form the grooves (22b, 22c), the grooves (22b, 22c) can be formed by a printing process with a printing apparatus.
EP99120640A 1998-10-19 1999-10-18 Piston for compressor Withdrawn EP0995905A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10297093A JP2000120541A (en) 1998-10-19 1998-10-19 Piston and forming method of groove
JP29709398 1998-10-19

Publications (2)

Publication Number Publication Date
EP0995905A2 EP0995905A2 (en) 2000-04-26
EP0995905A3 true EP0995905A3 (en) 2000-10-25

Family

ID=17842122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99120640A Withdrawn EP0995905A3 (en) 1998-10-19 1999-10-18 Piston for compressor

Country Status (3)

Country Link
EP (1) EP0995905A3 (en)
JP (1) JP2000120541A (en)
CN (1) CN1251882A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10315232A1 (en) * 2003-04-03 2004-10-28 Federal-Mogul Nürnberg GmbH Pistons for an internal combustion engine and method for producing a piston
US7171936B2 (en) * 2003-10-23 2007-02-06 Mahle Technology, Inc. Piston having a patterned coating and method of applying same
DE102010039507A1 (en) * 2010-08-19 2012-02-23 Robert Bosch Gmbh Piston guide element
JP6234793B2 (en) * 2013-11-28 2017-11-22 日立アプライアンス株式会社 Hermetic compressor and refrigeration / freezing apparatus using the same
KR102527045B1 (en) * 2021-08-18 2023-05-02 주식회사 모트롤 Actuator piston and driving device having the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115801A1 (en) * 1991-05-15 1992-11-19 Mahle Gmbh Application of coating of graphite to piston - using silk screen printing process which enables thickness to be varied
US5314717A (en) * 1990-07-20 1994-05-24 Peter Alt Process and apparatus for coating motor pistons
EP0818625A2 (en) * 1996-07-08 1998-01-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Pistons for compressors and method and apparatus for coating the pistons

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5314717A (en) * 1990-07-20 1994-05-24 Peter Alt Process and apparatus for coating motor pistons
DE4115801A1 (en) * 1991-05-15 1992-11-19 Mahle Gmbh Application of coating of graphite to piston - using silk screen printing process which enables thickness to be varied
EP0818625A2 (en) * 1996-07-08 1998-01-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Pistons for compressors and method and apparatus for coating the pistons

Also Published As

Publication number Publication date
EP0995905A2 (en) 2000-04-26
JP2000120541A (en) 2000-04-25
CN1251882A (en) 2000-05-03

Similar Documents

Publication Publication Date Title
US6817333B2 (en) Piston and cylinder bore having improved scuffing resistance
WO2005042953A3 (en) Piston having a patterned coating and method of applying same
RU96118135A (en) METHOD FOR MAKING A CYLINDER SHELL AND A CYLINDER SHELL
BR0202585B1 (en) workpiece with a tribologically solicitable area and process for manufacturing such an area.
CA1088283A (en) Piston with flared pin bore and method of making
US5806481A (en) Cylinder block with stepless plating coating and method for forming stepless plating coating
US5701861A (en) Cylinder with hybrid bore surface
EP1077090A3 (en) Masking for engine blocks for thermally sprayed coating and method of masking same
CA2396577A1 (en) Metallic sliding member, piston for internal combustion engine, method of surface-treating these, and apparatus therefor
EP0818625A3 (en) Pistons for compressors and method and apparatus for coating the pistons
CA1131522A (en) Aluminium alloy cylinder and manufacturing method thereof
JP2010285985A (en) Cylinder block and method for manufacturing the same
ATE244776T1 (en) METHOD FOR PRODUCING MACHINE PARTS PROVIDED WITH AT LEAST ONE SLIDING SURFACE
WO2004033757A3 (en) Tool with wear resistant low friction coating and method of making the same
ES2151329A1 (en) A method of manufacturing a cylinder liner for a piston engine, and a cylinder liner
JPH10252891A (en) Second pressure ring for aluminum cylinder and manufacture therefor
EP0995905A3 (en) Piston for compressor
EP1197573A3 (en) Method for repairing a coated article
EP1306586A3 (en) Metal gasket with partial coating
EP1008752A3 (en) Compressor piston and method for coating piston
AU2002229591A1 (en) Flat seal for a reciprocating piston engine or machine
US6220214B1 (en) Cylinder liner formed with cross-hatching grooves
KR20020071778A (en) Method and apparatus of working plain bearing
DE3636853C2 (en)
EP1197689A3 (en) Metal gasket

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19991022

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: DE FR IT

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20020602