ES347716A1 - Hydraulic fuel oil pump or the like - Google Patents

Hydraulic fuel oil pump or the like

Info

Publication number
ES347716A1
ES347716A1 ES347716A ES347716A ES347716A1 ES 347716 A1 ES347716 A1 ES 347716A1 ES 347716 A ES347716 A ES 347716A ES 347716 A ES347716 A ES 347716A ES 347716 A1 ES347716 A1 ES 347716A1
Authority
ES
Spain
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
Application number
ES347716A
Other languages
Spanish (es)
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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of ES347716A1 publication Critical patent/ES347716A1/en
Expired legal-status Critical Current

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

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.
ES347716A 1966-11-29 1967-11-28 Hydraulic fuel oil pump or the like Expired ES347716A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0051674 1966-11-29

Publications (1)

Publication Number Publication Date
ES347716A1 true ES347716A1 (en) 1969-02-16

Family

ID=7053560

Family Applications (1)

Application Number Title Priority Date Filing Date
ES347716A Expired ES347716A1 (en) 1966-11-29 1967-11-28 Hydraulic fuel oil pump or the like

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE1553008B2 (en) 1974-04-11
DK132096C (en) 1976-03-15
DE1553008A1 (en) 1969-07-31
BE707104A (en) 1968-04-01
US3491697A (en) 1970-01-27
DE1553008C3 (en) 1974-11-14
SE337079B (en) 1971-07-26
DK132096B (en) 1975-10-20
GB1180254A (en) 1970-02-04
CH478989A (en) 1969-09-30
NL6716121A (en) 1968-05-30

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