SE8100166L - FJEDERVENTILPUMP - Google Patents

FJEDERVENTILPUMP

Info

Publication number
SE8100166L
SE8100166L SE8100166A SE8100166A SE8100166L SE 8100166 L SE8100166 L SE 8100166L SE 8100166 A SE8100166 A SE 8100166A SE 8100166 A SE8100166 A SE 8100166A SE 8100166 L SE8100166 L SE 8100166L
Authority
SE
Sweden
Prior art keywords
spring
valve
pump
intake
antagonistic
Prior art date
Application number
SE8100166A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE450592B (en
Inventor
L C Porel
Original Assignee
Leduc Rene Hydro Sa
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 Leduc Rene Hydro Sa filed Critical Leduc Rene Hydro Sa
Publication of SE8100166L publication Critical patent/SE8100166L/en
Publication of SE450592B publication Critical patent/SE450592B/en

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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/053—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
    • F04B1/0531—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders with cam-actuated distribution members
    • 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
    • F04B1/14—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 having stationary cylinders
    • F04B1/18—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 having stationary cylinders having self-acting distribution members, i.e. actuated by working fluid
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
    • F04B7/0053—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for reciprocating distribution members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

The pump with fixed skew plate (5) comprises pistons (1) with their chambers (2) in which intake pipes (3) communicate by means of intake valves (11). Each valve is returned to the closed position by a first spring (12). A second spring (13) which exerts an effect which is antagonistic to that of the first spring (12) is arranged on the other side of the valve (11). During the intake phase, a cam (14) pushes back a ball (15) which compresses the second spring (13), thus increasing the antagonistic force. When the piston (1) recoils, the residual pressure in the chamber (2) decreases until it falls below a value corresponding to the difference in the forces exerted by the two springs (12, 13). At that moment, the valve (11) opens. An abrupt drop in pressure, with a loss of power and consequently a noise during the operation of the pump, is avoided. <IMAGE>
SE8100166A 1980-04-30 1981-01-13 HYDRAULIC PUMP SE450592B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8009780A FR2481757A2 (en) 1980-04-30 1980-04-30 SPRING VALVE PUMP

Publications (2)

Publication Number Publication Date
SE8100166L true SE8100166L (en) 1981-10-31
SE450592B SE450592B (en) 1987-07-06

Family

ID=9241538

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8100166A SE450592B (en) 1980-04-30 1981-01-13 HYDRAULIC PUMP

Country Status (4)

Country Link
JP (1) JPS572481A (en)
CH (1) CH640310A5 (en)
FR (1) FR2481757A2 (en)
SE (1) SE450592B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517396B1 (en) * 1981-11-30 1987-02-20 Glyco Antriebstechnik Gmbh HYDROSTATIC CLUTCH
DE3305695A1 (en) * 1983-02-18 1984-08-23 Siemens AG, 1000 Berlin und 8000 München Apparatus for slicing semiconductor material
GB2459520B (en) * 2008-06-20 2010-06-16 Artemis Intelligent Power Ltd Fluid working machines and methods
GB0811385D0 (en) 2008-06-20 2008-07-30 Artemis Intelligent Power Ltd Fluid working machines and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB890592A (en) * 1960-01-23 1962-03-07 Budzich Tadeusz Improvements relating to hydraulic motors
US3056387A (en) * 1961-04-10 1962-10-02 Budzich Tadeusz Hydraulic apparatus
DE2346646C2 (en) * 1973-09-17 1984-07-19 Ludwig 7570 Baden-Baden Mokesch Axial piston pump

Also Published As

Publication number Publication date
JPS572481A (en) 1982-01-07
CH640310A5 (en) 1983-12-30
SE450592B (en) 1987-07-06
FR2481757A2 (en) 1981-11-06
FR2481757B2 (en) 1984-01-20

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