US20160341192A1 - An air-driven hydraulic pump - Google Patents

An air-driven hydraulic pump Download PDF

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Publication number
US20160341192A1
US20160341192A1 US15/112,591 US201415112591A US2016341192A1 US 20160341192 A1 US20160341192 A1 US 20160341192A1 US 201415112591 A US201415112591 A US 201415112591A US 2016341192 A1 US2016341192 A1 US 2016341192A1
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US
United States
Prior art keywords
air
hydraulic pump
piston
driven hydraulic
pump according
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.)
Abandoned
Application number
US15/112,591
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English (en)
Inventor
Ulf Jansson
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.)
JEMTAB SYSTEMS AB
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JEMTAB SYSTEMS AB
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 JEMTAB SYSTEMS AB filed Critical JEMTAB SYSTEMS AB
Assigned to JEMTAB SYSTEMS AB reassignment JEMTAB SYSTEMS AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JANSSON, ULF
Publication of US20160341192A1 publication Critical patent/US20160341192A1/en
Abandoned legal-status Critical Current

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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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/007—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/04—Engines combined with reciprocatory driven devices, e.g. hammers
    • 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
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/20—Other positive-displacement pumps
    • F04B19/22—Other positive-displacement pumps of reciprocating-piston type
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/125—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/10—Motor parameters of linear elastic fluid motors

Definitions

  • the present invention relates to an air-driven hydraulic pump, comprising an air motor which is operatively connected with an oil pump, wherein the air motor comprises a cylinder element in which an air piston is arranged movable in a reciprocating manner along an axis.
  • the air piston is connected with an oil piston of the oil pump for transmitting the reciprocating movement of the air piston to the oil piston.
  • Air-driven hydraulic pumps of this kind are used to set oil under a predetermined level of pressure.
  • the hydraulic pump is suitable for applications such as bolt tensioning, injecting oil for overcoming interference fits and pressurizing large hydraulic nuts.
  • the use of air-driven oil pumps can save considerable time and effort.
  • the oil pump itself is driven by an air motor which allows to carry out a reciprocating movement of a piston within a respective cylinder.
  • the piston of the air motor moves the piston of the oil pump.
  • An air motor of this kind is known for example from U.S. Pat. No. 2,765,804.
  • the air motor comprises a cylinder in which the air piston is arranged.
  • the piston can carry out a reciprocating movement in the cylinder.
  • the air piston separates two cylinder chambers in the cylinder.
  • the cylinder chambers are periodically charged with pressurized air from a pressurized air source, wherein the periodical charging of the chambers with air is controlled by a control valve element.
  • the pressure of the air for charging the air motor must be limited to limit also the pressure of the oil which is pressurized by the oil pump.
  • typically an air-pressure limiter is arranged between the pressurized air source and the air motor. The user can however bypass the air-pressure limiter to obtain a higher oil pressure level which creates a high risk and must be prohibited.
  • an air-driven hydraulic pump comprising an air motor, and an oil pump, which is operatively connected with the air motor.
  • the air motor comprises a cylinder element in which an air piston is arranged movable in a reciprocating manner along a centre axis.
  • the air piston is connected with an oil piston of the oil pump for transmitting the reciprocating movement of the air piston to the oil piston.
  • the air piston separates a first cylinder chamber from a second cylinder chamber within the cylinder element.
  • a control valve element is arranged to control the application of pressurized air from a source of pressurized air to the cylinder element.
  • At least one pressure control valve is arranged in the air motor, allowing an air flow from one of the cylinder chambers to the other cylinder chamber when the pressure difference between the two cylinder chambers exceeds a predetermined value.
  • a single pressure control valve is employed.
  • the at least one pressure control valve is arranged in the air piston.
  • the pressure control valve can then penetrate the air piston in the direction of the axis of the cylinder.
  • the at least one pressure control valve is a check valve.
  • This check valve can comprise a housing in which a valve element is elastically biased, or biased, against a seat by means of a spring element.
  • the valve element is preferably a ball.
  • the spring element is preferably a helical spring.
  • the housing can have a substantial hollow cylindrical form. The axis of the housing is mostly parallel to the axis of the cylinder element. Thereby, the axis of the housing and the axis of the cylinder element are preferably radially distanced from another.
  • the at least one pressure control valve comprises means for adjusting the pressure difference between the two cylinder chambers at which the pressure control valve opens.
  • the means for adjusting the pressure difference can comprise a screw element which is screwed into a thread in the housing of the valve element.
  • the screw element can have a hexagon socket in one of its face sides for easy adjustment of the applied spring force.
  • the air piston and the oil piston are arranged coaxially.
  • an air pressure limiter device is incorporated into the air-driven hydraulic pump.
  • the oil pressure that the pump is able to produce is limited, since the oil pressure is directly depending on the air pressure used for powering the air motor.
  • FIG. 1 shows a perspective view of en embodiment of the hydraulic pump according to this invention, consisting of an air motor and an oil pump;
  • FIG. 2 shows a top plan view of the hydraulic pump according FIG. 1 ;
  • FIG. 3 shows a cross sectional view along to the cut C-D according to FIG. 2 ;
  • FIG. 4 shows the detail “X” according to FIG. 3 ;
  • FIG. 5 shows an enlarged view of the valve element as shown in FIG. 4 .
  • FIG. 1 an embodiment of the air-driven hydraulic pump 1 is shown which consists of an air motor 2 and an oil pump 3 .
  • the air motor 2 is supplied from a source 10 of pressurized air.
  • the air is conducted into the air motor 2 by an air connection 19 .
  • the operation of the air motor 2 is influenced by an adjustor 20 for a control valve element which controls the air motor 2 .
  • the hydraulic pump 1 has a carrying handle 25 .
  • an oil inlet 21 is arranged which leads to the oil pump 3 .
  • the oil is set under pressure by the oil pump 3 and leaves it via a connection nipple 22 .
  • An oil return is denoted with reference numeral 23 .
  • a release valve 24 allows releasing the pressure from the oil pump 3 .
  • the pressure of the oil which is created by the oil pump 3 can be monitored with the pressure gauge 26 .
  • the air motor 2 has a cylinder element 4 in which an air piston 5 is arranged movable in a reciprocating manner.
  • the air piston 5 is connected with an oil piston 6 of the oil pump 3 .
  • the cylinder element 4 and the air piston 5 at one hand and the oil piston 6 at the other hand are arranged coaxially around a centre axis a of the cylinder element 4 .
  • the air piston 5 divides the interior of the cylinder element 4 into two cylinder chambers in, i.e. a first cylinder chamber 7 and a second cylinder chamber 8 .
  • the air flow from the source 10 into the cylinder element 4 is controlled by a control valve element 9 in a well-known manner (see e.g. U.S. Pat. No. 2,765,804), typically in dependence of the axial position of the air piston ( 5 ) in the cylinder element ( 4 ).
  • a pressure control valve 11 is arranged in the air motor 2 .
  • the pressure control valve 11 allows an air flow from one of the cylinder chambers 7 , 8 to the other when the pressure difference between the two cylinder chambers 7 , 8 exceeds a predetermined value.
  • a pressure control valve 11 being a check valve is mounted into the air piston 5 . Details of the pressure control valve 11 are apparent from FIG. 4 and FIG. 5 .
  • the pressure control valve 11 has a housing 12 which has a substantial hollow cylindrical shape, i.e. a tube shape.
  • the housing 12 has a centre axis b, which is parallel to the centre axis a of the cylinder element 4 but is radially spaced from it.
  • a conical seat 14 is machined in the housing 12 .
  • a valve element 13 being a ball in the shown embodiment, is biased against the seat 14 by a helical spring 15 .
  • the pressure control valve 11 is shown in an opened state, i.e. a gap between the ball 13 and the seat 14 allows an air flow between the cylinder chambers 7 , 8 .
  • means 16 , 17 are arranged for adjusting this pressure difference.
  • the means comprise a screw element 16 which is screwed into a thread 17 which is machined in one of the axial end regions of the housing, as apparent from FIG. 5 .
  • the screw element 16 has a hexagon socket 18 in its right face side. The screw element 16 can thus be moved axially relative to the housing.
  • the screw element 16 is moved to the left side in FIG. 5 the helical spring 15 is elastically biased with a higher force.
  • the pressure difference between the cylinder chambers 7 , 8 must be higher before the pressure control valves 11 opens.
  • the air from the source 10 acts via the control valve element 9 onto the air piston 5 .
  • the air piston 5 makes a reciprocating motion which in turn enables the oil piston 6 to suck, pressurize and deliver the oil to the desired application.
  • the air pressure onto the air piston 5 dictates the maximum oil pressure that the oil pump 3 can deliver.
  • the air pressure limiter valve i.e. the pressure control valve 11 , has been fitted to the air piston 5 .
  • the screw element 16 is preset by the manufacturer of the air-driven hydraulic pump 1 during the assembly of the whole system and corresponds with the required maximum air pressure which is allowed.
  • more than one pressure control valve can be arranged, while a single valve is preferred, e.g. from a perspective of manufacturing costs.
  • the pressure control valve(s) can be arranged in a different way, while still being in the air motor, and while still letting air pass between the first and second chambers above a maximum pressure difference.
  • the shown arrangement in the air piston is however presently preferred.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
US15/112,591 2014-02-07 2014-02-07 An air-driven hydraulic pump Abandoned US20160341192A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/052456 WO2015117666A1 (en) 2014-02-07 2014-02-07 An air-driven hydraulic pump

Publications (1)

Publication Number Publication Date
US20160341192A1 true US20160341192A1 (en) 2016-11-24

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ID=50071611

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/112,591 Abandoned US20160341192A1 (en) 2014-02-07 2014-02-07 An air-driven hydraulic pump

Country Status (5)

Country Link
US (1) US20160341192A1 (forum.php)
CN (1) CN105934582B (forum.php)
BR (1) BR112016016502B1 (forum.php)
DE (1) DE112014006342T5 (forum.php)
WO (1) WO2015117666A1 (forum.php)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10955043B2 (en) 2019-08-19 2021-03-23 Dana Heavy Vehicle Group, LLC Axle assembly with variable speed pump
US11047470B2 (en) 2019-03-26 2021-06-29 Dana Heavy Vehicle Systems Group, Llc Axle assembly with lubrication pump

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106593802B (zh) * 2017-02-06 2019-06-18 宁波天泰美克智能科技有限公司 一种油压气动泵的气动结构
CN106704135B (zh) * 2017-02-06 2018-10-19 宁波天泰美克智能科技有限公司 一种油压气动泵
NL2021314B1 (en) * 2018-07-16 2020-01-24 Noord Jan Reciprocating piston motor, motor-pump assembly and method for driving a pump

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US2765804A (en) * 1953-01-22 1956-10-09 Stewart Warner Corp Hydro-pneumatic pressure control apparatus
US2789510A (en) * 1954-03-11 1957-04-23 Black Sivalls & Bryson Inc Liquid injector
US3207442A (en) * 1963-12-18 1965-09-21 Ingersoll Rand Co High pressure fluid gun
US3250073A (en) * 1964-08-21 1966-05-10 Ellis Fluid Dynamics Corp Cylinder
US3457864A (en) * 1967-05-01 1969-07-29 Bernard F Price Pressure control for installation in wells
US3463053A (en) * 1967-10-16 1969-08-26 Applied Power Ind Inc Relief valve for fluid motor
US3593616A (en) * 1968-06-17 1971-07-20 Bomford & Evershed Ltd Hydraulic safety or overload release mechanism
US4087210A (en) * 1974-01-11 1978-05-02 Hein-Werner Corporation Hydraulic pumping device with pneumatic actuation
US4535876A (en) * 1983-03-16 1985-08-20 Tayco Developments, Inc. Shock absorber construction
US4674397A (en) * 1985-02-21 1987-06-23 Wilcox Thomas J Fluid-operated reciprocating motor
US4718330A (en) * 1982-01-18 1988-01-12 Eltra Corporation Hydraulic cylinder
US4729283A (en) * 1983-11-11 1988-03-08 Delibes Pty. Ltd. Valve for use with hydraulic ram assemblies
US4825752A (en) * 1987-12-14 1989-05-02 Commercial Shearing, Inc. End-of-stroke bypass valve in piston for impact relief in hydraulic tilt and trim cylinder
US5425305A (en) * 1994-02-25 1995-06-20 Mauritz; Forrest Hydraulic cylinder piston with center flow bypass valve
US5478216A (en) * 1993-09-08 1995-12-26 Neward; Theodore C. Vacuum limiter for pump
US5513962A (en) * 1994-05-09 1996-05-07 Lubecon Systems, Inc. Pneumatically actuated lubricant pump
US6089931A (en) * 1998-03-31 2000-07-18 Showa Corporation Trim-tilt device for marine propulsion device
US6398527B1 (en) * 2000-08-21 2002-06-04 Westport Research Inc. Reciprocating motor with uni-directional fluid flow
US20030068241A1 (en) * 2001-10-05 2003-04-10 Mccollough Mark Wayne Shaft coupling and shifting mechanism for pneumatic pump
US6663360B1 (en) * 2002-06-25 2003-12-16 James A. Kyer Fluid injection pump with internal air actuator valve
US20040115069A1 (en) * 2002-12-12 2004-06-17 Jeng-Shiung Huang Air actuated hydraulic pump
US20060083641A1 (en) * 2004-10-12 2006-04-20 Mark Ellens Energy dissipation valves for hydraulic cylinders
US7284475B2 (en) * 2004-12-30 2007-10-23 Envirodrive Inc. Pneumatic reciprocating motor
US20100104456A1 (en) * 2006-10-26 2010-04-29 Stanford Frantz D Hydro-pneumatic system with pressure limiting valve
US20100215521A1 (en) * 2006-11-21 2010-08-26 Knuth Bruce E Air driven hydraulic pump
US20110114757A1 (en) * 2009-11-17 2011-05-19 Munn Jamie S Paint sprayer
US20130094978A1 (en) * 2010-07-24 2013-04-18 Clayton Hoffarth Downhole pump with a pressure sequencing valve
US8632317B2 (en) * 2010-01-29 2014-01-21 Ingersoll-Rand Company Air motor having a modular add on regulator
US8683910B1 (en) * 2009-08-21 2014-04-01 Foster Hydraulics, Inc. Hydraulic cylinder with piston valve assembly
US20150184681A1 (en) * 2012-09-03 2015-07-02 Kayaba Industry Co., Ltd. Actuator
US20160201656A1 (en) * 2012-08-28 2016-07-14 Pascal Engineering Corporation Compressed air driven reciprocating piston hydraulic pump

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GB1161982A (en) * 1965-11-29 1969-08-20 Olin Mathieson Ltd Reciprocating Pump, Compressor or the like
SE467165B (sv) * 1988-10-28 1992-06-01 Nike Ab Tryckluft driven pumpanordning
CN2644699Y (zh) * 2003-07-21 2004-09-29 叶国忠 自动吸排油器
CN201334995Y (zh) * 2008-11-17 2009-10-28 傅勇刚 气动脚踏泵
CN102278337A (zh) * 2011-09-05 2011-12-14 扬州扬宝机械有限公司 液压缓冲缸

Patent Citations (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2765804A (en) * 1953-01-22 1956-10-09 Stewart Warner Corp Hydro-pneumatic pressure control apparatus
US2789510A (en) * 1954-03-11 1957-04-23 Black Sivalls & Bryson Inc Liquid injector
US3207442A (en) * 1963-12-18 1965-09-21 Ingersoll Rand Co High pressure fluid gun
US3250073A (en) * 1964-08-21 1966-05-10 Ellis Fluid Dynamics Corp Cylinder
US3457864A (en) * 1967-05-01 1969-07-29 Bernard F Price Pressure control for installation in wells
US3463053A (en) * 1967-10-16 1969-08-26 Applied Power Ind Inc Relief valve for fluid motor
US3593616A (en) * 1968-06-17 1971-07-20 Bomford & Evershed Ltd Hydraulic safety or overload release mechanism
US4087210A (en) * 1974-01-11 1978-05-02 Hein-Werner Corporation Hydraulic pumping device with pneumatic actuation
US4718330A (en) * 1982-01-18 1988-01-12 Eltra Corporation Hydraulic cylinder
US4535876A (en) * 1983-03-16 1985-08-20 Tayco Developments, Inc. Shock absorber construction
US4729283A (en) * 1983-11-11 1988-03-08 Delibes Pty. Ltd. Valve for use with hydraulic ram assemblies
US4674397A (en) * 1985-02-21 1987-06-23 Wilcox Thomas J Fluid-operated reciprocating motor
US4825752A (en) * 1987-12-14 1989-05-02 Commercial Shearing, Inc. End-of-stroke bypass valve in piston for impact relief in hydraulic tilt and trim cylinder
US5478216A (en) * 1993-09-08 1995-12-26 Neward; Theodore C. Vacuum limiter for pump
US5425305A (en) * 1994-02-25 1995-06-20 Mauritz; Forrest Hydraulic cylinder piston with center flow bypass valve
US5513962A (en) * 1994-05-09 1996-05-07 Lubecon Systems, Inc. Pneumatically actuated lubricant pump
US6089931A (en) * 1998-03-31 2000-07-18 Showa Corporation Trim-tilt device for marine propulsion device
US6398527B1 (en) * 2000-08-21 2002-06-04 Westport Research Inc. Reciprocating motor with uni-directional fluid flow
US20030068241A1 (en) * 2001-10-05 2003-04-10 Mccollough Mark Wayne Shaft coupling and shifting mechanism for pneumatic pump
US6663360B1 (en) * 2002-06-25 2003-12-16 James A. Kyer Fluid injection pump with internal air actuator valve
US20040115069A1 (en) * 2002-12-12 2004-06-17 Jeng-Shiung Huang Air actuated hydraulic pump
US20060083641A1 (en) * 2004-10-12 2006-04-20 Mark Ellens Energy dissipation valves for hydraulic cylinders
US7284475B2 (en) * 2004-12-30 2007-10-23 Envirodrive Inc. Pneumatic reciprocating motor
US20100104456A1 (en) * 2006-10-26 2010-04-29 Stanford Frantz D Hydro-pneumatic system with pressure limiting valve
US20100215521A1 (en) * 2006-11-21 2010-08-26 Knuth Bruce E Air driven hydraulic pump
US9010234B1 (en) * 2009-08-21 2015-04-21 Tim Foster Hydraulic cylinder with piston valve assembly
US8683910B1 (en) * 2009-08-21 2014-04-01 Foster Hydraulics, Inc. Hydraulic cylinder with piston valve assembly
US20110114757A1 (en) * 2009-11-17 2011-05-19 Munn Jamie S Paint sprayer
US8632317B2 (en) * 2010-01-29 2014-01-21 Ingersoll-Rand Company Air motor having a modular add on regulator
US20130094978A1 (en) * 2010-07-24 2013-04-18 Clayton Hoffarth Downhole pump with a pressure sequencing valve
US20160201656A1 (en) * 2012-08-28 2016-07-14 Pascal Engineering Corporation Compressed air driven reciprocating piston hydraulic pump
US20150184681A1 (en) * 2012-09-03 2015-07-02 Kayaba Industry Co., Ltd. Actuator
US9476436B2 (en) * 2012-09-03 2016-10-25 Kyb Corporation Actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11047470B2 (en) 2019-03-26 2021-06-29 Dana Heavy Vehicle Systems Group, Llc Axle assembly with lubrication pump
US10955043B2 (en) 2019-08-19 2021-03-23 Dana Heavy Vehicle Group, LLC Axle assembly with variable speed pump

Also Published As

Publication number Publication date
CN105934582B (zh) 2019-04-23
BR112016016502A2 (forum.php) 2017-08-08
DE112014006342T5 (de) 2016-10-27
WO2015117666A1 (en) 2015-08-13
CN105934582A (zh) 2016-09-07
BR112016016502B1 (pt) 2021-09-14

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