ATE547626T1 - HYDROSTATIC PISTON ENGINE WITH PULSATION REDUCING DEVICE - Google Patents

HYDROSTATIC PISTON ENGINE WITH PULSATION REDUCING DEVICE

Info

Publication number
ATE547626T1
ATE547626T1 AT09777918T AT09777918T ATE547626T1 AT E547626 T1 ATE547626 T1 AT E547626T1 AT 09777918 T AT09777918 T AT 09777918T AT 09777918 T AT09777918 T AT 09777918T AT E547626 T1 ATE547626 T1 AT E547626T1
Authority
AT
Austria
Prior art keywords
piston chamber
opening
piston engine
piston
reducing device
Prior art date
Application number
AT09777918T
Other languages
German (de)
Inventor
Timo Nafz
Ruslan Rudik
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Application granted granted Critical
Publication of ATE547626T1 publication Critical patent/ATE547626T1/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
    • F04B1/12—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
    • F04B1/20—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 rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2042—Valves
    • 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
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • F04B11/0016—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/16—Opening or closing of a valve in a circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The invention relates to a hydrostatic piston engine having at least one piston chamber. A piston is arranged in the piston chamber in a displaceable manner, wherein the piston chamber can be connected alternately to a first control opening (2) or to a second control opening (3) of a control part (1) through a piston chamber opening (4). A first and a second reversing region (5, 6) are formed between the first control opening (2) and the second control opening (3). The piston chamber opening (4) can be connected to an accumulator element (7), which opens into the first reversing region (5) through a connection (8). The connection of the reversing region (5) to the accumulator element (7) comprises a valve device (10). Through said valve device (10), the flow cross-section of the connection (8) can be varied relative to the control part (1) over time decoupled from a position angle (a) of the piston chamber opening (4).
AT09777918T 2008-09-08 2009-08-17 HYDROSTATIC PISTON ENGINE WITH PULSATION REDUCING DEVICE ATE547626T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008046258 2008-09-08
DE102008061349A DE102008061349A1 (en) 2008-09-08 2008-12-10 Hydrostatic piston machine with pulsation reduction device
PCT/EP2009/005947 WO2010025822A1 (en) 2008-09-08 2009-08-17 Hydrostatic piston engine having a pulsation reduction device

Publications (1)

Publication Number Publication Date
ATE547626T1 true ATE547626T1 (en) 2012-03-15

Family

ID=41650900

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09777918T ATE547626T1 (en) 2008-09-08 2009-08-17 HYDROSTATIC PISTON ENGINE WITH PULSATION REDUCING DEVICE

Country Status (4)

Country Link
EP (1) EP2324245B1 (en)
AT (1) ATE547626T1 (en)
DE (1) DE102008061349A1 (en)
WO (1) WO2010025822A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011117081A1 (en) * 2011-10-27 2013-05-02 Robert Bosch Gmbh Hydrostatic piston machine
DE102012218883A1 (en) * 2011-11-12 2013-05-16 Robert Bosch Gmbh Hydrostatic piston machine
WO2013068210A1 (en) 2011-11-12 2013-05-16 Robert Bosch Gmbh Hydrostatic piston engine
FR3000770B1 (en) * 2013-01-08 2015-03-20 Technoboost HYDRAULIC MACHINE WITH TWO DIRECTION OF ROTATION, COMPRISING A PRE-COMPRESSION CHAMBER
EP2999885B1 (en) * 2013-05-22 2017-12-06 Hydac Drive Center GmbH Axial piston machine of swash plate type
DE102020201800A1 (en) 2020-02-13 2021-08-19 Robert Bosch Gesellschaft mit beschränkter Haftung Hydrostatic axial piston machine with pressure side change
DE102020212372A1 (en) 2020-09-30 2022-03-31 Robert Bosch Gesellschaft mit beschränkter Haftung Hydrostatic axial piston machine
DE102021203902A1 (en) 2021-04-20 2022-10-20 Robert Bosch Gesellschaft mit beschränkter Haftung Axial piston machine with high operating speed and low pressure pulsation
DE102022107860A1 (en) 2022-04-01 2023-10-05 Danfoss Power Solutions Inc. Hydraulic axial piston unit and method for controlling a hydraulic axial piston unit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211943B (en) * 1957-01-18 1966-03-03 Bosch Gmbh Robert Device for noise reduction in a rotary valve-controlled hydraulic axial or radial piston machine that can be used as a pump or motor
US3283726A (en) * 1964-12-14 1966-11-08 American Brake Shoe Co Construction for pump/motor devices
US3956969A (en) * 1974-12-09 1976-05-18 Caterpillar Tractor Co. Hydrostatic pump including separate noise reducing valve assemblies for its inlet and outlet pressure ports
GB2123093B (en) * 1982-06-03 1985-10-23 Ifield Eng Pty Hydraulic pumps
SE507637C2 (en) * 1991-09-06 1998-06-29 Parker Hannifin Ab Method and apparatus for damping flow pulsations in hydrostatic displacement hydraulic machines and apparatus for carrying out the method
JP2606758Y2 (en) * 1992-12-22 2001-01-09 株式会社小松製作所 Hydraulic pump / motor cylinder chamber pressure control device
DE19706116C5 (en) 1997-02-17 2012-12-20 Linde Material Handling Gmbh Device for pulsation reduction on hydrostatic displacement units

Also Published As

Publication number Publication date
DE102008061349A1 (en) 2010-03-11
EP2324245A1 (en) 2011-05-25
EP2324245B1 (en) 2012-02-29
WO2010025822A1 (en) 2010-03-11

Similar Documents

Publication Publication Date Title
ATE547626T1 (en) HYDROSTATIC PISTON ENGINE WITH PULSATION REDUCING DEVICE
WO2008148948A3 (en) Hydroelectric device for closed-loop driving the control jack of a variable compression rate engine
EP2363594A3 (en) Fuel pump
WO2006074036A3 (en) Active valve and active valving for pump
WO2009092537A3 (en) Check valve and piston pump having check valve
JP2006207384A5 (en)
ATE396340T1 (en) HYDRAULIC VALVE ARRANGEMENT
SE0701142L (en) Hydraulic load control valve assembly
ATE467046T1 (en) HIGH PRESSURE PUMP, IN PARTICULAR FOR A FUEL INJECTION DEVICE OF AN INTERNAL COMBUSTION ENGINE
FI20065523A (en) door closer
WO2013036355A3 (en) Meterless hydraulic system having displacement control valve
WO2007098431A3 (en) Thermostatic expansion valve with check valve
MX2011009815A (en) Control valve for a variable displacement pump.
DE502007000004D1 (en) Pressure control valve
ATE411477T1 (en) LINEAR DRIVE DEVICE
ATE503667T1 (en) PISTON PUMP
ATE550570T1 (en) MUTE
ATE550553T1 (en) CONTROL UNIT AND ITS USE
ATE495351T1 (en) EXHAUST ARRANGEMENT FOR A VEHICLE EXHAUST LINE
ATE500417T1 (en) SAFETY VALVE
DE502006007280D1 (en) CONTROL VALVE FOR A CAMSHAFT ADJUSTER
JP2015124631A5 (en)
ATE530768T1 (en) PUMP
ATE363023T1 (en) FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
ATE467757T1 (en) INJECTOR