EP2003339A3 - Rotary piston machine - Google Patents

Rotary piston machine Download PDF

Info

Publication number
EP2003339A3
EP2003339A3 EP08007258.0A EP08007258A EP2003339A3 EP 2003339 A3 EP2003339 A3 EP 2003339A3 EP 08007258 A EP08007258 A EP 08007258A EP 2003339 A3 EP2003339 A3 EP 2003339A3
Authority
EP
European Patent Office
Prior art keywords
side wall
rotary piston
channel
piston machine
housing
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Withdrawn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
EP08007258.0A
Other languages
German (de)
French (fr)
Other versions
EP2003339A2 (en
Inventor
Stefan Kröss
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.)
Magna Powertrain Hueckeswagen GmbH
Original Assignee
Ixetic Hueckeswagen 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 Ixetic Hueckeswagen GmbH filed Critical Ixetic Hueckeswagen GmbH
Publication of EP2003339A2 publication Critical patent/EP2003339A2/en
Publication of EP2003339A3 publication Critical patent/EP2003339A3/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Withdrawn legal-status Critical Current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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/126—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/126—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with elements extending radially from the rotor body not necessarily cooperating with corresponding recesses in the other rotor, e.g. lobes, Roots type

Abstract

Die Rotationskolbenmaschine hat einen Bypasskanal, der durch zwei in einer Seitenwand (6) ihres Fördergehäuses (4) vorgesehene Öffnungen (15,16) und einen in dieser Seitenwand (6) sich erstreckenden Kanal (17) gebildet ist, derart, dass der Bypasskanal (17) auf einer Seite durch einen Wandbereich der Seitenwand (6) und auf der gegenüberliegenden Seite durch einen in diese Seitenwand (6) eingelassenen Kanaldeckel (19) begrenzt ist. Im Kanaldeckel (19) ist becherförmig das Gehäuse (25) eines Überdruckventils (14) eingeformt, an dessen zylindrischer Innenfläche (27) kolbenartig ein Schließkörper (2) geführt ist. Die aus wenigen Einzelteilen ausgeführte Maschine eignet sich besonders für die raumsparende und direkte Ankupplung im Motorraum eines Kraftfahrzeuges, wobei ihr im Bypasskanal vorgesehenes Überdruckventil (14) die Nachteile einer von der Drehgeschwindigkeit abhängigen Druckdifferenz zwischen Saug- und Druckseite verhindert.

Figure imgaf001
The rotary piston machine has a bypass channel which is formed by two openings (15, 16) provided in a side wall (6) of its delivery housing (4) and a channel (17) extending in this side wall (6), such that the bypass channel ( 17) on one side by a wall portion of the side wall (6) and on the opposite side by a in this side wall (6) recessed duct cover (19) is limited. In the manhole cover (19) cupped the housing (25) of a pressure relief valve (14) is formed, on the cylindrical inner surface (27) piston-like a closing body (2) is guided. The executed from a few items machine is particularly suitable for the space-saving and direct coupling in the engine compartment of a motor vehicle, her provided in the bypass passage overpressure valve (14) prevents the disadvantages of a dependent of the rotational speed pressure difference between suction and pressure side.
Figure imgaf001
EP08007258.0A 2007-06-14 2008-04-12 Rotary piston machine Withdrawn EP2003339A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007027318A DE102007027318A1 (en) 2007-06-14 2007-06-14 Rotary piston engine

Publications (2)

Publication Number Publication Date
EP2003339A2 EP2003339A2 (en) 2008-12-17
EP2003339A3 true EP2003339A3 (en) 2014-06-11

Family

ID=39787875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08007258.0A Withdrawn EP2003339A3 (en) 2007-06-14 2008-04-12 Rotary piston machine

Country Status (4)

Country Link
US (1) US20080310987A1 (en)
EP (1) EP2003339A3 (en)
JP (1) JP2008309155A (en)
DE (1) DE102007027318A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823758A (en) * 1986-08-22 1989-04-25 Aisin Seiki Kabushiki Kaisha Mechanical supercharger
JP2001248578A (en) * 2000-03-02 2001-09-14 Tochigi Fuji Ind Co Ltd Fluid machine
US20050089424A1 (en) * 2003-10-23 2005-04-28 Ming-Hsin Liu Multi-stage vacuum pump

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1694805A (en) * 1927-04-01 1928-12-11 Wiltse Appliance Company Fuel-supply system for internal-combustion engines
US2111568A (en) * 1935-02-12 1938-03-22 Lysholm Alf Rotary compressor
US2684631A (en) * 1951-05-07 1954-07-27 Anthony Pump and valve assembly
US3106166A (en) * 1960-01-20 1963-10-08 Waterous Co Pretimed three-lobed rotary pump
US3170408A (en) * 1960-01-20 1965-02-23 Waterous Co Rotary pumps
DE1553030A1 (en) * 1965-10-12 1975-06-19 Otto Eckerle BACKLASH AND WEAR-COMPENSATING HIGH PRESSURE GEAR PUMP OR -ENGINE
DE1553031C3 (en) * 1965-10-29 1974-03-14 Eisenwerke Kaiserslautern Gmbh, 6750 Kaiserslautern Rotary lobe pump for pumping viscous substances
US3554678A (en) * 1968-10-16 1971-01-12 Monarch Road Machinery Co High speed hydraulic pump
US3857167A (en) * 1972-05-18 1974-12-31 Beyer H Kg Mittelrheinische Me Method for centrifugally casting an annulus of metal about a hub
US3809510A (en) * 1973-03-22 1974-05-07 Philco Ford Corp Combination pressure relief and anti-slugging valve for a screw compressor
US4761125A (en) * 1986-03-29 1988-08-02 Nippon Soken, Inc. Twin-shaft multi-lobed type hydraulic device
DE4423096A1 (en) * 1994-07-01 1996-01-04 Alois Boerger Rotary pump esp. for fluids with solid content
US7137789B2 (en) * 1997-07-18 2006-11-21 Rpm Industries, Inc. Vent for reducing seal pressure in pump assembly
JP2000161269A (en) * 1998-11-27 2000-06-13 Toyota Autom Loom Works Ltd Roots pump and pump device
JP2001164943A (en) * 1999-12-09 2001-06-19 Tochigi Fuji Ind Co Ltd Fluid machinery
DE10239558B4 (en) * 2002-08-28 2005-03-17 SCHWäBISCHE HüTTENWERKE GMBH External gear pump with pressurized fluid precharge
JP2006233867A (en) * 2005-02-24 2006-09-07 Aisin Seiki Co Ltd Electric pump and fluid-feeding device
US20070134122A1 (en) * 2005-12-09 2007-06-14 Chin-Tang Wang Hydraulic pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823758A (en) * 1986-08-22 1989-04-25 Aisin Seiki Kabushiki Kaisha Mechanical supercharger
JP2001248578A (en) * 2000-03-02 2001-09-14 Tochigi Fuji Ind Co Ltd Fluid machine
US20050089424A1 (en) * 2003-10-23 2005-04-28 Ming-Hsin Liu Multi-stage vacuum pump

Also Published As

Publication number Publication date
JP2008309155A (en) 2008-12-25
EP2003339A2 (en) 2008-12-17
DE102007027318A1 (en) 2008-12-18
US20080310987A1 (en) 2008-12-18

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