WO2007115828A8 - Hydraulic motor with axial pistons - Google Patents

Hydraulic motor with axial pistons

Info

Publication number
WO2007115828A8
WO2007115828A8 PCT/EP2007/003212 EP2007003212W WO2007115828A8 WO 2007115828 A8 WO2007115828 A8 WO 2007115828A8 EP 2007003212 W EP2007003212 W EP 2007003212W WO 2007115828 A8 WO2007115828 A8 WO 2007115828A8
Authority
WO
WIPO (PCT)
Prior art keywords
swash plate
maximum
displacement
pistons
minimum
Prior art date
Application number
PCT/EP2007/003212
Other languages
French (fr)
Other versions
WO2007115828A1 (en
Inventor
Enzo Corradini
Original Assignee
Comer Ind Spa
Enzo Corradini
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 Comer Ind Spa, Enzo Corradini filed Critical Comer Ind Spa
Priority to CN200780013190.9A priority Critical patent/CN101421511B/en
Publication of WO2007115828A1 publication Critical patent/WO2007115828A1/en
Publication of WO2007115828A8 publication Critical patent/WO2007115828A8/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
    • F03C1/0678—Control
    • F03C1/0686—Control by changing the inclination of the swash plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Motors (AREA)

Abstract

A hydraulic motor (1) with axial pistons, comprising a casing (2) for containing a motor shaft (4) and a plurality of pistons (5) which are substantially parallel to the motor shaft and act on a swash plate (6) which is mounted around the motor shaft (4) so as to oscillate between a maximum- displacement configuration and a minimum-displacement configuration, at least one first duct (8) and one second duct (9) for connecting the pistons (5) to a circuit for supplying a working fluid, and hydraulic means (13) for varying the inclination of the swash plate (6) as a function of the higher pressure of the working fluid in the connecting ducts (8, 9). The hydraulic motor (1) is provided with valve means (14) for enabling and disabling the hydraulic means (13), which can be moved functionally between a first working position, in which the hydraulic means (13) are disabled and the swash plate (6) is arranged in the maximum-displacement configuration, and a second working position, in which the hydraulic means (13) are enabled and the swash plate (6) is arranged in any angular configuration, comprised between the maximum- and minimum-displacement configurations, of equilibrium for the higher applied pressure, the swash plate (6) oscillating continuously and bidirectionally between the maximum- and minimum- displacement configurations.
PCT/EP2007/003212 2006-04-12 2007-04-11 Hydraulic motor with axial pistons WO2007115828A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200780013190.9A CN101421511B (en) 2006-04-12 2007-04-11 Hydraulic motor with axial pistons

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO20060122 ITMO20060122A1 (en) 2006-04-12 2006-04-12 HYDRAULIC AXIAL PISTON ENGINE
ITMO2006A000122 2006-04-12

Publications (2)

Publication Number Publication Date
WO2007115828A1 WO2007115828A1 (en) 2007-10-18
WO2007115828A8 true WO2007115828A8 (en) 2007-12-21

Family

ID=38110693

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/003212 WO2007115828A1 (en) 2006-04-12 2007-04-11 Hydraulic motor with axial pistons

Country Status (3)

Country Link
CN (1) CN101421511B (en)
IT (1) ITMO20060122A1 (en)
WO (1) WO2007115828A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011053645A1 (en) * 2011-09-15 2013-03-21 Linde Material Handling Gmbh Hydrostatic axial piston machine e.g. swash plate type axial piston pump, has housing-side resistance parts arranged on inner wall of housing to influence pressurization in housing as result of volumetric flow
CN102913382B (en) * 2012-10-31 2015-07-29 陕西航天动力高科技股份有限公司 A kind of High-reliability hydraulic motor
CN104421414B (en) * 2013-09-09 2018-03-13 株式会社神崎高级工机制作所 Axial piston unit
FR3030641B1 (en) 2014-12-23 2017-01-13 Poclain Hydraulics Ind AUTOMATIC CYLINDER SWITCHING DEVICE OF AXIAL PISTON MACHINE
CN107587940B (en) * 2017-10-24 2023-07-18 青岛大学 Hydraulic transmission engine without crankshaft

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736753A (en) * 1971-09-22 1973-06-05 Deere & Co Hydraulic drive
JPS6149175A (en) * 1984-08-16 1986-03-11 Kayaba Ind Co Ltd Control device for variable displacement type pump and motor
JP3211836B2 (en) * 1991-01-22 2001-09-25 カヤバ工業株式会社 Speed control device for piston motor
GB2287069B (en) * 1994-03-02 1997-10-22 Kubota Kk Swash plate type hydraulic motor switchable between high speed and low speed
JP3585261B2 (en) * 1994-06-22 2004-11-04 カヤバ工業株式会社 Hydraulic motor
CN1250846A (en) * 1999-10-20 2000-04-19 李世六 Axial plunger type hydraulic variable displacement pump or speed-variable motor
DE10055262A1 (en) * 2000-11-08 2002-05-23 Linde Ag Hydrostatic axial piston machine in inclined disc construction method

Also Published As

Publication number Publication date
WO2007115828A1 (en) 2007-10-18
CN101421511A (en) 2009-04-29
CN101421511B (en) 2012-11-07
ITMO20060122A1 (en) 2007-10-13

Similar Documents

Publication Publication Date Title
WO2007115828A8 (en) Hydraulic motor with axial pistons
EP1788288A3 (en) Dual pump dual pressure hydraulic circuit
WO2007021651A3 (en) Integrated compressor/expansion engine
DK2102529T3 (en) Hydrostatic Vehicle Drive
JP2008249024A (en) Hydraulic actuator
DK2140097T3 (en) Cylinder Tools
EP1628028A3 (en) Hydraulic drive system
GB0614939D0 (en) Digital hydraulic system for driving a fan
ATE453783T1 (en) LUBRICATION SYSTEM AND COMBUSTION ENGINE COMPRISING SUCH A SYSTEM
EP1967739A3 (en) Device for hydraulic adjustment of the rotor blades of a wheel of an axial ventilator
ATE529635T1 (en) HYDROSTATIC AXIAL PISTON MACHINE
EP1975407A3 (en) Two-pump air compressor
EP2351925A3 (en) Back-up featherer
WO2010090684A3 (en) Variable-displacement piston-cylinder device
EP1795657A3 (en) Hydraulic circuit for heavy construction equipment
WO2009036970A3 (en) Hydraulic drive, hydraulic supply device, airplane with a hydraulic supply device and method for configuring a hydraulic supply device
EP1978248B1 (en) Pump Equipment
JP2010255244A (en) Hydraulic drive device for working machine
EP2813421A3 (en) Ship propulsion system
SE0502556L (en) Arrangements for power generation
AU2010276482B2 (en) Hydraulic power module
ATE369247T1 (en) PRESSURE UNIT
WO2012010137A3 (en) Hydraulic dual axial piston machine
EP1614895A3 (en) Pump system
AU6573800A (en) Power unit for positioning valves, or the like, into desired position

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07724153

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 200780013190.9

Country of ref document: CN

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct app. not ent. europ. phase

Ref document number: 07724153

Country of ref document: EP

Kind code of ref document: A1