EP1288495A3 - Hollow piston for a piston engine - Google Patents

Hollow piston for a piston engine Download PDF

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Publication number
EP1288495A3
EP1288495A3 EP02023312A EP02023312A EP1288495A3 EP 1288495 A3 EP1288495 A3 EP 1288495A3 EP 02023312 A EP02023312 A EP 02023312A EP 02023312 A EP02023312 A EP 02023312A EP 1288495 A3 EP1288495 A3 EP 1288495A3
Authority
EP
European Patent Office
Prior art keywords
piston
mandrel
base section
hollow
delimiting
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
EP02023312A
Other languages
German (de)
French (fr)
Other versions
EP1288495A2 (en
EP1288495B1 (en
Inventor
Gerhard Beutler
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.)
Brueninghaus Hydromatik GmbH
Original Assignee
Brueninghaus Hydromatik GmbH
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 Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP1288495A2 publication Critical patent/EP1288495A2/en
Publication of EP1288495A3 publication Critical patent/EP1288495A3/en
Application granted granted Critical
Publication of EP1288495B1 publication Critical patent/EP1288495B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49249—Piston making
    • Y10T29/49252—Multi-element piston making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49249—Piston making
    • Y10T29/49256—Piston making with assembly or composite article making

Abstract

Die Erfindung bezieht sich auf einen Hohlkolben (1) für eine Kolbenmaschine, mit einem geschlossenen Ringhohlraum (9), bestehend aus einem ersten Kolbenteil (1a) mit einem Basisabschnitt (3), von dem sich in der einen axialen Richtung ein Gelenkteil (4) und in der anderen axialen Richtung jeweils einstückig eine den Ringhohlraum (9) außen begrenzende Umfangswand (6) und ein den Ringhohlraum (9) innen begrenzender Dorn (7) erstrecken, und bestehend aus einem zweiten Kolbenteil (1b) mit einem Deckel (8), der mit den dem Basisabschnitt (3) abgewandten Enden der Umfangswand (6) und des Dorns (7) verbunden ist. Zwecks Erzielung einer preisgünstigen, einfachen Herstellung bei Gewährleistung einer stabilen Bauweise sind die Umfangswand (6) und der Dorn (7) am Basisabschnitt (3) spanlos angeformt.

Figure 00000001
The invention relates to a hollow piston (1) for a piston machine, with a closed annular cavity (9), consisting of a first piston part (1a) with a base section (3), from which a joint part (4) extends in one axial direction. and in the other axial direction each extend in one piece with a circumferential wall (6) delimiting the ring cavity (9) and a mandrel (7) delimiting the ring cavity (9) inside, and consisting of a second piston part (1b) with a cover (8) which is connected to the ends of the peripheral wall (6) and the mandrel (7) facing away from the base section (3). The peripheral wall (6) and the mandrel (7) are formed on the base section (3) without cutting in order to achieve inexpensive, simple manufacture while ensuring a stable construction.
Figure 00000001
EP02023312A 1999-07-21 2000-06-30 Hollow piston for a piston engine Expired - Lifetime EP1288495B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19934216 1999-07-21
DE19934216A DE19934216A1 (en) 1999-07-21 1999-07-21 Hollow piston for a piston machine and method for producing a hollow piston
EP00943956A EP1198325B1 (en) 1999-07-21 2000-06-30 Hollow piston for a piston engine and method for producing a hollow piston

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP00943956A Division EP1198325B1 (en) 1999-07-21 2000-06-30 Hollow piston for a piston engine and method for producing a hollow piston
EP00943956.3 Division 2000-06-30

Publications (3)

Publication Number Publication Date
EP1288495A2 EP1288495A2 (en) 2003-03-05
EP1288495A3 true EP1288495A3 (en) 2003-04-23
EP1288495B1 EP1288495B1 (en) 2006-05-31

Family

ID=7915557

Family Applications (3)

Application Number Title Priority Date Filing Date
EP00943956A Expired - Lifetime EP1198325B1 (en) 1999-07-21 2000-06-30 Hollow piston for a piston engine and method for producing a hollow piston
EP02023313A Expired - Lifetime EP1287944B1 (en) 1999-07-21 2000-06-30 Method of manufacturing a hollow piston for a piston engine
EP02023312A Expired - Lifetime EP1288495B1 (en) 1999-07-21 2000-06-30 Hollow piston for a piston engine

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP00943956A Expired - Lifetime EP1198325B1 (en) 1999-07-21 2000-06-30 Hollow piston for a piston engine and method for producing a hollow piston
EP02023313A Expired - Lifetime EP1287944B1 (en) 1999-07-21 2000-06-30 Method of manufacturing a hollow piston for a piston engine

Country Status (4)

Country Link
US (1) US6662709B1 (en)
EP (3) EP1198325B1 (en)
DE (4) DE19934216A1 (en)
WO (1) WO2001007201A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314864B1 (en) * 2000-07-20 2001-11-13 Sauer-Danfoss Inc. Closed cavity piston for hydrostatic units
DE10206728B4 (en) † 2002-02-18 2006-08-24 Brueninghaus Hydromatik Gmbh Hollow piston and method for its production by sintering
US6732633B1 (en) * 2003-01-14 2004-05-11 Sauer-Danfoss Inc. Reduced dead volume hollow piston
DE10306792B4 (en) * 2003-01-23 2007-03-22 Valeo Compressor Europe Gmbh Piston, in particular for an axial piston compressor, and method for producing the same
US6994014B2 (en) * 2004-06-29 2006-02-07 Sauer-Danfoss Inc. Closed cavity piston for hydrostatic power units and method of manufacturing the same
JP4110479B2 (en) * 2004-09-28 2008-07-02 アイシン精機株式会社 Valve timing control device
DE102004061863A1 (en) 2004-12-22 2006-07-06 Brueninghaus Hydromatik Gmbh Piston for axial piston machine in bent-axis design and method for producing such piston
US7313997B2 (en) * 2006-05-26 2008-01-01 Visteon Global Technologies, Inc. Copper alloy piston shoe
US7654240B2 (en) * 2006-08-18 2010-02-02 Caterpillar Inc. Engine piston having an insulating air gap
DE102006060015A1 (en) * 2006-12-19 2008-06-26 Robert Bosch Gmbh Hollow piston for an axial piston machine
DE102008060841B4 (en) 2008-12-05 2021-10-28 Robert Bosch Gmbh Hollow piston for a piston machine
DE102009056903A1 (en) 2009-12-03 2011-06-09 Danfoss A/S Hydraulic piston machine, in particular water-hydraulic machine
CN102335812B (en) * 2010-07-20 2016-08-03 台州市百达电器有限公司 A kind of manufacture method of piston of reciprocating compressor
CN102865221A (en) * 2012-10-07 2013-01-09 四川省宜宾普什驱动有限责任公司 Hollow plunger
WO2014187512A1 (en) * 2013-05-22 2014-11-27 Hydac Drive Center Gmbh Axial piston pump having a swash-plate type construction
DE102013211888A1 (en) * 2013-06-24 2014-12-24 Robert Bosch Gmbh Hollow piston for a swashplate machine and swashplate machine
DE102017119967A1 (en) 2017-08-31 2019-02-28 Schaeffler Technologies AG & Co. KG Manufacturing process, piston blank, piston and axial piston machine with the piston
JP7228994B2 (en) * 2018-11-15 2023-02-27 株式会社小松製作所 Piston and hydraulic pump/motor
CN109926801B (en) * 2019-04-16 2024-04-09 四川坤成润科技有限公司 Processing method of hollow plunger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319575A (en) * 1965-06-14 1967-05-16 Sundstrand Corp Piston
DE3406782A1 (en) * 1983-02-25 1984-08-30 Linde Ag, 6200 Wiesbaden Piston for a hydrostatic machine
US4494448A (en) * 1982-02-23 1985-01-22 Vsesojuzny Nauchno-Issledovatelsky I Proektno-Konstruktorsky Institut Promyshelennykh Gidroprivodov I Girodoavtomatiki Composite piston of positive displacement hydraulic machine and method for manufacturing same
US5216943A (en) * 1991-03-18 1993-06-08 Hydromatik Gmbh Piston for hydrostatic axial and radial piston machines and method for the manufacture thereof
DE19620167C1 (en) * 1996-05-20 1997-03-13 Brueninghaus Hydromatik Gmbh Hollow piston for axial piston machine
US5642654A (en) * 1994-09-01 1997-07-01 Sundstrand Corporation Piston and method of manufacturing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2653867A1 (en) * 1976-11-26 1978-06-01 Linde Ag Hollow piston for hydraulic axial piston unit - has integral ball head with mantle press fitted and soldered to cover with central column

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319575A (en) * 1965-06-14 1967-05-16 Sundstrand Corp Piston
US4494448A (en) * 1982-02-23 1985-01-22 Vsesojuzny Nauchno-Issledovatelsky I Proektno-Konstruktorsky Institut Promyshelennykh Gidroprivodov I Girodoavtomatiki Composite piston of positive displacement hydraulic machine and method for manufacturing same
DE3406782A1 (en) * 1983-02-25 1984-08-30 Linde Ag, 6200 Wiesbaden Piston for a hydrostatic machine
US5216943A (en) * 1991-03-18 1993-06-08 Hydromatik Gmbh Piston for hydrostatic axial and radial piston machines and method for the manufacture thereof
US5642654A (en) * 1994-09-01 1997-07-01 Sundstrand Corporation Piston and method of manufacturing the same
DE19620167C1 (en) * 1996-05-20 1997-03-13 Brueninghaus Hydromatik Gmbh Hollow piston for axial piston machine

Also Published As

Publication number Publication date
EP1198325B1 (en) 2003-10-01
US6662709B1 (en) 2003-12-16
DE50003918D1 (en) 2003-11-06
WO2001007201A1 (en) 2001-02-01
EP1287944A3 (en) 2003-04-23
DE19934216A1 (en) 2001-02-01
DE50012872D1 (en) 2006-07-06
EP1287944A2 (en) 2003-03-05
EP1287944B1 (en) 2006-06-07
EP1288495A2 (en) 2003-03-05
EP1198325A1 (en) 2002-04-24
EP1288495B1 (en) 2006-05-31
DE50012944D1 (en) 2006-07-20

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