GB1180254A - Hydraulic Pumps - Google Patents
Hydraulic PumpsInfo
- Publication number
- GB1180254A GB1180254A GB51524/67A GB5152467A GB1180254A GB 1180254 A GB1180254 A GB 1180254A GB 51524/67 A GB51524/67 A GB 51524/67A GB 5152467 A GB5152467 A GB 5152467A GB 1180254 A GB1180254 A GB 1180254A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- chamber
- air
- vortex
- port
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/14—Details thereof
- F23K5/142—Fuel pumps
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0049—Equalization of pressure pulses
-
- 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
- F04C2210/00—Fluid
- F04C2210/24—Fluid mixed, e.g. two-phase fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
1,180,254. Rotary positive displacement pumps. DANFOSS A.S. Nov. 13, 1967 [Nov. 29, 1966], No. 51524/67. Heading F1F. A rotary positive displacement hydraulic pump of the internally meshing n and n + 1 tooth type includes a circular vortex chamber II, Fig. 2, wherein any air entrained with the liquid e.g. oil, that is to be pumped by a pair of gear-wheels 16, 17 is separated from the liquid by centrifugal action. The vortex chamber is defined by a cap 7 and a plate 31, and contains three radially orientated uniformly disposed ducts 10 having inlet ports 6 at their outermost ends through which the air and liquid aforesaid enters the ducts from a chamber 2 within a cover 3 attached to a housing 33, the liquid being in the lowermost part of the chamber 2 so that mostly air enters the uppermost duct 10. A vortex is formed in the chamber II owing chiefly to the provision of a suction port 36, Fig. 3, and a duct 11 in the plate 31, said port being adjacent the perimeter of the chamber and said duct being substantially tangential to said perimeter. Liquid is drawn off through the port 36 into suction chambers 14, 20 adjacent the gear-wheels while a light mixture of air and liquid collects at the centre of the vortex. Periodically, any surplus air in the vortex is also drawn through the port 36. A filter 4 and a rubber diaphragm 5 are lodged in the chamber 2, which is charged with liquid through two ducts (1, Fig. 1, not shown), in the housing 33, the diaphragm serving to minimize pressure fluctuations. Separation of air and liquid in the vortex chamber is said to reduce noise.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED0051674 | 1966-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1180254A true GB1180254A (en) | 1970-02-04 |
Family
ID=7053560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB51524/67A Expired GB1180254A (en) | 1966-11-29 | 1967-11-13 | Hydraulic Pumps |
Country Status (9)
Country | Link |
---|---|
US (1) | US3491697A (en) |
BE (1) | BE707104A (en) |
CH (1) | CH478989A (en) |
DE (1) | DE1553008C3 (en) |
DK (1) | DK132096C (en) |
ES (1) | ES347716A1 (en) |
GB (1) | GB1180254A (en) |
NL (1) | NL6716121A (en) |
SE (1) | SE337079B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0942169A (en) * | 1995-07-31 | 1997-02-10 | Aisin Seiki Co Ltd | Pump device |
DE19635801B4 (en) * | 1996-09-04 | 2005-04-28 | Zahnradfabrik Friedrichshafen | High pressure pump with working slides |
ITUB20153739A1 (en) * | 2015-09-18 | 2017-03-18 | Fluid O Tech Srl | PUMP PROVIDED WITH AN INTERNAL PRESSURE COMPENSATION SYSTEM. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2751847A (en) * | 1952-02-28 | 1956-06-26 | Sundstrand Machine Tool Co | Fuel pump |
US2775206A (en) * | 1955-03-07 | 1956-12-25 | Eaton Mfg Co | Pump |
US2966118A (en) * | 1956-10-08 | 1960-12-27 | Webster Electric Co Inc | Fuel unit |
US3162129A (en) * | 1962-07-13 | 1964-12-22 | Sundstrand Corp | Two-stage fuel unit |
DE1501813A1 (en) * | 1965-02-05 | 1969-07-17 | Otto Eckerle | Valve for oil burner pumps |
US3343494A (en) * | 1966-09-12 | 1967-09-26 | Sundstrand Corp | Automatically reversible gear pump |
-
1966
- 1966-11-29 DE DE1553008A patent/DE1553008C3/en not_active Expired
-
1967
- 1967-11-13 GB GB51524/67A patent/GB1180254A/en not_active Expired
- 1967-11-16 CH CH1616767A patent/CH478989A/en not_active IP Right Cessation
- 1967-11-27 NL NL6716121A patent/NL6716121A/xx unknown
- 1967-11-27 US US686391A patent/US3491697A/en not_active Expired - Lifetime
- 1967-11-27 BE BE707104D patent/BE707104A/xx unknown
- 1967-11-28 SE SE16319/67A patent/SE337079B/xx unknown
- 1967-11-28 ES ES347716A patent/ES347716A1/en not_active Expired
- 1967-11-29 DK DK596467A patent/DK132096C/en active
Also Published As
Publication number | Publication date |
---|---|
DE1553008C3 (en) | 1974-11-14 |
ES347716A1 (en) | 1969-02-16 |
BE707104A (en) | 1968-04-01 |
CH478989A (en) | 1969-09-30 |
DK132096C (en) | 1976-03-15 |
US3491697A (en) | 1970-01-27 |
DK132096B (en) | 1975-10-20 |
SE337079B (en) | 1971-07-26 |
DE1553008B2 (en) | 1974-04-11 |
DE1553008A1 (en) | 1969-07-31 |
NL6716121A (en) | 1968-05-30 |
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