GB1336344A - Positive displacement pump - Google Patents
Positive displacement pumpInfo
- Publication number
- GB1336344A GB1336344A GB4759171A GB4759171A GB1336344A GB 1336344 A GB1336344 A GB 1336344A GB 4759171 A GB4759171 A GB 4759171A GB 4759171 A GB4759171 A GB 4759171A GB 1336344 A GB1336344 A GB 1336344A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- housing
- fluid
- reservoir
- cover plate
- 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.)
- Expired
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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations 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
- 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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps 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 toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps 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 toothed rotary pistons with similar tooth forms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/56—Number of pump/machine units in operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- General Details Of Gearings (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
1336344 Rotary Gear Pump FORD MOTOR CO Ltd 13 Oct 1971 [22 Dec 1970] 47591/71 Heading F1F In a gear pump assembly comprising a single drive gear 10 and a pair of driven gears 12, 14 forming a pair of pumping units, each drawing fluid from a reservoir 18 via inlet lines 16 and 22 respectively and delivering via lines 15 and 20 to a common output line 26, a pressure-regulating by-pass valve 28 receives pressure fluid via a port 36 to act differentially on the lands 48 and 50 of a spool 38 to move the spool against a spring 58 and a control pressure admitted via port 62, first to open communication between a port 30 and a feed port 60, then to connect port 32 to port 54 and by-pass line 56, to return fluid to the inlet line 22, a check valve 24 preventing its return to the reservoir. In a practical arrangement, Fig. 3 4, suitable for use in a vehicle automatic power transmission system, the gears are located in a recess 66 in a main housing 64, a cover plate 78 being secured thereto with the interposition of a separator plate 84 which is apertured to connect the various passageways which are formed in the housing 64 and the cover plate 78. The by-pass valve is also formed within the housing 64. Lubricating passages are provided, Fig. 8 (not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10061170A | 1970-12-22 | 1970-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336344A true GB1336344A (en) | 1973-11-07 |
Family
ID=22280626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4759171A Expired GB1336344A (en) | 1970-12-22 | 1971-10-13 | Positive displacement pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US3692432A (en) |
CA (1) | CA955797A (en) |
DE (1) | DE2150784A1 (en) |
GB (1) | GB1336344A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11162494B2 (en) * | 2019-01-23 | 2021-11-02 | Pratt & Whitney Canada Corp. | Scavenge pump |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4083345A (en) * | 1975-10-14 | 1978-04-11 | Stanadyne, Inc. | Fuel injection pump |
SE445245B (en) * | 1982-06-23 | 1986-06-09 | Jerzy Janczak | HYDRAULIC PUMP OR HYDRAULIC ENGINE |
DE3402448A1 (en) * | 1984-01-25 | 1985-07-25 | Volkswagenwerk Ag, 3180 Wolfsburg | Appliance for pumping a hydraulic working fluid |
US4850813A (en) * | 1988-03-04 | 1989-07-25 | Ford Motor Company | Self unloading pump circuit for an automatic transmission having multiple pressure supply pumps |
US5087177A (en) * | 1989-10-31 | 1992-02-11 | Borg-Warner Automotive, Inc. | Dual capacity fluid pump |
DE4200910C2 (en) * | 1992-01-16 | 1999-06-02 | Zahnradfabrik Friedrichshafen | Automatic transmissions, in particular for motor vehicles |
US5799260A (en) * | 1996-02-20 | 1998-08-25 | Ford Global Technologies, Inc. | System for controlling multiple hydraulic pumps in an automatic transmission |
JP3540546B2 (en) * | 1997-06-04 | 2004-07-07 | ジヤトコ株式会社 | Hydraulic control device for automatic transmission |
US6205779B1 (en) * | 1999-03-31 | 2001-03-27 | Daimlerchrysler Corporation | Integral hub driven gears |
KR100451651B1 (en) * | 2001-12-13 | 2004-10-08 | 엘지전자 주식회사 | The structure for preventing the reverse - rotation of centrifugal compressor |
CN100419267C (en) * | 2004-09-22 | 2008-09-17 | 株式会社Tbk | No-load operation system of tadem pump |
DE102005014654B4 (en) * | 2005-03-31 | 2014-03-06 | Gkn Driveline International Gmbh | Motor vehicle hydraulic pump |
EP1966491A1 (en) * | 2005-12-17 | 2008-09-10 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Rotary transmission leadthrough and torque transmission device with a rotary transmission leadthrough |
JP5007085B2 (en) * | 2006-08-15 | 2012-08-22 | 株式会社Tbk | Tandem pump valve structure |
CN102878075A (en) * | 2012-10-04 | 2013-01-16 | 张意立 | Novel gear pump |
CN102878072A (en) * | 2012-10-04 | 2013-01-16 | 张意立 | Pressure holding gear pump |
DK177834B1 (en) * | 2013-02-27 | 2014-09-08 | C C Jensen As | Device for processing a liquid under vacuum pressure |
JP6491007B2 (en) * | 2015-03-25 | 2019-03-27 | 株式会社Subaru | Oil pump discharge rate switching device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2021613A (en) * | 1933-01-06 | 1935-11-19 | American La France And Foamite | Pumping system |
US2257095A (en) * | 1940-01-04 | 1941-09-30 | Westinghouse Electric & Mfg Co | Variable capacity pump for governing apparatus |
US3022514A (en) * | 1959-01-26 | 1962-02-27 | Walter L Kaiser | Clothing protector |
US3601506A (en) * | 1969-11-28 | 1971-08-24 | Chandler Evans Inc | Wear equalized fuel delivery system |
-
1970
- 1970-12-22 US US100611A patent/US3692432A/en not_active Expired - Lifetime
-
1971
- 1971-09-10 CA CA122,513A patent/CA955797A/en not_active Expired
- 1971-10-12 DE DE19712150784 patent/DE2150784A1/en not_active Withdrawn
- 1971-10-13 GB GB4759171A patent/GB1336344A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11162494B2 (en) * | 2019-01-23 | 2021-11-02 | Pratt & Whitney Canada Corp. | Scavenge pump |
Also Published As
Publication number | Publication date |
---|---|
US3692432A (en) | 1972-09-19 |
CA955797A (en) | 1974-10-08 |
DE2150784A1 (en) | 1972-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |