US20120121439A1 - Hydraulic power module - Google Patents

Hydraulic power module Download PDF

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Publication number
US20120121439A1
US20120121439A1 US13/386,962 US201013386962A US2012121439A1 US 20120121439 A1 US20120121439 A1 US 20120121439A1 US 201013386962 A US201013386962 A US 201013386962A US 2012121439 A1 US2012121439 A1 US 2012121439A1
Authority
US
United States
Prior art keywords
hydraulic
power module
hpm
servo motor
motor
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
US13/386,962
Other languages
English (en)
Inventor
Michael J. Sebion
Michael A. Cryer
Todd A. Domer
Nicholas D. Long
Kevin A. Moore
Mark J. Brudevold
William C. Scherer
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.)
Graco Minnesota Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US13/386,962 priority Critical patent/US20120121439A1/en
Publication of US20120121439A1 publication Critical patent/US20120121439A1/en
Assigned to GRACO MINNESOTA INC. reassignment GRACO MINNESOTA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CRYER, MICHAEL A., LONG, NICHOLAS D., BRUDEVOLD, MARK J., SCHERER, WILLIAM C., DOMER, TODD A., SEBION, MICHAEL J., MOORE, KEVIN A.
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/26—Supply reservoir or sump assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F16F9/5126—Piston, or piston-like valve elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L2001/2444—Details relating to the hydraulic feeding circuit, e.g. lifter oil manifold assembly [LOMA]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/18—Combined units comprising both motor and pump

Definitions

  • Hydraulic power modules for controlling fluid dispensing and other apparatus are well known.
  • the hydraulic power module of the instant invention consists of 1) a hydraulic manifold to route hydraulic fluid to the correct areas, 2) a hydraulic reservoir that contains hydraulic fluid, 3) a hydraulic pump, 4) a DC servo motor, 5) a directional valve, 6) a cooling system and 7) an integrated filter housing 8) electronics—motor control for controlling the DC servo motor.
  • the hydraulic power module works to supply hydraulic fluid to run a variety of configurations of hydraulic cylinder(s).
  • the DC servo motor is directly coupled to the hydraulic pump via a hydraulic manifold. When the motor is spinning, the pump directs hydraulic fluid through the manifold, to the directional valve.
  • the HPM signals the directional valve to divert flow to either side of a hydraulic cylinder.
  • the HPM in conjunction with a sensor (example: flow meter in the fluid line, a linear transducer associated with the hydraulic cylinder, etc.), provides hydraulic fluid at such a rate to accurately control the velocity of a piston in a hydraulic cylinder. It can also hold the position of the hydraulic cylinder piston stationary against an opposing force. This results in an accurate flow rate or constant dynamic and static pressures.
  • the invention reduces hydraulic cooling requirements by allowing flow to stop when no flow is required.
  • the invention results in a simplified mechanical design compared to traditional AC power pack systems.
  • the dynamic response of the HPM eliminates the need for accumulators.
  • the HPM control allows for full torque output at zero speed. This allows the system to respond almost instantly to requests for flow (no delay while pressure builds.)
  • the dynamic response of the HPM allows for compensation of system variations allowing the hydraulic power module to produce a more constant pressure and/or flow than traditional AC technology.
  • the HPM control allows for changes in pressure and flow without any mechanical adjustment (pressure compensated pumps, dump valves, etc.)
  • the HPM controls the motor torque, speed and position where a typical AC power pack only controls speed resulting in improved control.
  • Noise levels are lower than traditional AC power pack designs.
  • the design and control lend itself to reduced power consumption.
  • the system will only use energy on an as needed basis. Closed loop flow control based on a linear transducer provides equivalent control at a lower cost point.
  • the algorithm will work with any hydraulic pump. When new pressure and/or flow are required, simply replace the pump.
  • FIG. 1 shows a front view of the HPM of the instant invention.
  • FIG. 2 shows a rear view of the HPM of the instant invention.
  • FIG. 3 shows a view with the reservoir removed showing the pump of the HPM of the instant invention.
  • FIG. 4 is a schematic view of the HPM of the instant invention.
  • FIG. 5 shows a schematic view of the fluid circuit of the HPM of the instant invention.
  • the hydraulic power module 10 of the instant invention consists of 1) a hydraulic manifold 12 to route hydraulic fluid to the correct areas, 2) a hydraulic reservoir 14 that contains hydraulic fluid 16 , 3) a hydraulic pump 18 , 4) a DC servo motor 20 , 5) a directional valve 22 , 6) a cooling system 24 7) an integrated filter housing 26 and 8) electronics—motor control 28 for controlling the DC servo motor 20 .
  • the hydraulic power module (HPM) 10 works to supply hydraulic fluid 16 to run a variety of configurations of hydraulic cylinder(s) 30 .
  • the DC servo motor 20 is directly coupled to the hydraulic pump 18 via a hydraulic manifold 12 .
  • the pump 18 directs hydraulic fluid 16 through the manifold 12 , to the directional valve 22 .
  • the HPM 10 signals the directional valve 22 to divert flow to either side of a hydraulic cylinder 30 .
  • the HPM 10 in conjunction with a sensor 32 (example: flow meter in the fluid line, a linear transducer 34 associated with the hydraulic cylinder, etc.), provides hydraulic fluid 16 at such a rate to accurately control the velocity of a piston in a hydraulic cylinder 30 . It can also hold the position of the hydraulic cylinder 30 piston stationary against an opposing force. This results in an accurate flow rate or constant dynamic and static pressures.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
US13/386,962 2009-07-29 2010-07-27 Hydraulic power module Abandoned US20120121439A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/386,962 US20120121439A1 (en) 2009-07-29 2010-07-27 Hydraulic power module

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US22929809P 2009-07-29 2009-07-29
US61229298 2009-07-29
US13/386,962 US20120121439A1 (en) 2009-07-29 2010-07-27 Hydraulic power module
PCT/US2010/043338 WO2011014486A1 (en) 2009-07-29 2010-07-27 Hydraulic power module

Publications (1)

Publication Number Publication Date
US20120121439A1 true US20120121439A1 (en) 2012-05-17

Family

ID=42937653

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/386,962 Abandoned US20120121439A1 (en) 2009-07-29 2010-07-27 Hydraulic power module

Country Status (11)

Country Link
US (1) US20120121439A1 (cg-RX-API-DMAC10.html)
EP (1) EP2459886A1 (cg-RX-API-DMAC10.html)
JP (1) JP5843290B2 (cg-RX-API-DMAC10.html)
KR (1) KR20120051722A (cg-RX-API-DMAC10.html)
CN (1) CN102472301B (cg-RX-API-DMAC10.html)
AU (1) AU2010276482B2 (cg-RX-API-DMAC10.html)
BR (1) BR112012001418A2 (cg-RX-API-DMAC10.html)
IN (1) IN2012DN01705A (cg-RX-API-DMAC10.html)
MX (1) MX2012001217A (cg-RX-API-DMAC10.html)
RU (1) RU2012105643A (cg-RX-API-DMAC10.html)
WO (1) WO2011014486A1 (cg-RX-API-DMAC10.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107725506A (zh) * 2017-10-23 2018-02-23 天津世仓工业设备有限公司 一种数控冲床用电液伺服控制系统
EP3771482A1 (en) 2019-07-30 2021-02-03 Dana Motion Systems Italia S.R.L. Adaptor plug for a spin-on filter
DE202019005807U1 (de) 2019-07-30 2022-03-25 Dana Motion Systems Italia S.R.L. Adapterstecker für ein aufdrehbares Filter

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9193046B2 (en) * 2012-08-03 2015-11-24 Spx Flow, Inc. Auto cycle pump and method of operation
KR101532683B1 (ko) * 2013-10-29 2015-07-01 국방과학연구소 유압시스템
WO2016042424A1 (en) * 2014-09-19 2016-03-24 Siti - B&T Group S.P.A. Hydraulic system for presses, particularly for presses for manufacturing ceramic products

Citations (8)

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US3902318A (en) * 1974-08-28 1975-09-02 Sperry Rand Corp Power transmission
US5144801A (en) * 1989-04-28 1992-09-08 Parker Hannifin Corporation Electro-hydraulic actuator system
US20020026792A1 (en) * 1999-08-19 2002-03-07 Porter Don B. Elongated self-contained actuator
JP2003172306A (ja) * 2001-12-04 2003-06-20 Komatsu Ltd 油圧信号出力回路
JP2005016596A (ja) * 2003-06-24 2005-01-20 Tokimec Inc 液圧装置
US7047733B1 (en) * 2003-02-18 2006-05-23 Giat Industries Compact electro-hydraulic generator to motorize cupola
US20070028608A1 (en) * 2004-02-11 2007-02-08 George Kadlicko Rotary hydraulic machine and controls
US7420350B2 (en) * 2006-11-17 2008-09-02 Gm Global Technology Operations, Inc. Methods and apparatus for an active front steering actuator

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US4043127A (en) * 1975-07-02 1977-08-23 Kubik Philip A Reservoir housing
JPS62184206A (ja) * 1986-02-07 1987-08-12 Hitachi Seiko Ltd 電気−油圧変換式駆動装置
US5778671A (en) * 1996-09-13 1998-07-14 Vickers, Inc. Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit
AU2001253503A1 (en) * 2000-04-14 2001-10-30 Actuant Corporation Variable speed hydraulic pump
JP2001317447A (ja) * 2000-05-09 2001-11-16 Tokimec Inc 液圧装置
JP2001317507A (ja) * 2000-05-11 2001-11-16 Daishin Shoko:Kk 油圧シリンダ装置における油タンクの構造
JP2002147405A (ja) * 2000-11-14 2002-05-22 Toyooki Kogyo Co Ltd 液圧駆動装置
ITRM20060085U1 (it) * 2006-05-17 2007-11-18 Findisa S R L Sistema oleodinamico a bassa tensione a controllo elettronico di movimentazione di chiusure automatiche
DE102006026077A1 (de) * 2006-06-03 2007-12-06 Hydac Process Technology Gmbh Fluidsystem
CN101042149A (zh) * 2007-04-20 2007-09-26 绍兴市肯特机械电子有限公司 用伺服电机控制的液压动力系统
CN101382157A (zh) * 2007-09-07 2009-03-11 中国科学院沈阳自动化研究所 电液混合动力油缸

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902318A (en) * 1974-08-28 1975-09-02 Sperry Rand Corp Power transmission
US5144801A (en) * 1989-04-28 1992-09-08 Parker Hannifin Corporation Electro-hydraulic actuator system
US20020026792A1 (en) * 1999-08-19 2002-03-07 Porter Don B. Elongated self-contained actuator
JP2003172306A (ja) * 2001-12-04 2003-06-20 Komatsu Ltd 油圧信号出力回路
US7047733B1 (en) * 2003-02-18 2006-05-23 Giat Industries Compact electro-hydraulic generator to motorize cupola
JP2005016596A (ja) * 2003-06-24 2005-01-20 Tokimec Inc 液圧装置
US20070028608A1 (en) * 2004-02-11 2007-02-08 George Kadlicko Rotary hydraulic machine and controls
US7420350B2 (en) * 2006-11-17 2008-09-02 Gm Global Technology Operations, Inc. Methods and apparatus for an active front steering actuator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107725506A (zh) * 2017-10-23 2018-02-23 天津世仓工业设备有限公司 一种数控冲床用电液伺服控制系统
EP3771482A1 (en) 2019-07-30 2021-02-03 Dana Motion Systems Italia S.R.L. Adaptor plug for a spin-on filter
DE202019005807U1 (de) 2019-07-30 2022-03-25 Dana Motion Systems Italia S.R.L. Adapterstecker für ein aufdrehbares Filter
US11491427B2 (en) 2019-07-30 2022-11-08 Dana Motion Systems Italia S.R.L. Adaptor plug for a spin-on filter

Also Published As

Publication number Publication date
WO2011014486A1 (en) 2011-02-03
KR20120051722A (ko) 2012-05-22
RU2012105643A (ru) 2013-09-10
BR112012001418A2 (pt) 2019-09-24
AU2010276482B2 (en) 2015-07-09
MX2012001217A (es) 2012-04-30
AU2010276482A1 (en) 2012-02-02
EP2459886A1 (en) 2012-06-06
IN2012DN01705A (cg-RX-API-DMAC10.html) 2015-06-05
CN102472301B (zh) 2015-12-16
JP2013501196A (ja) 2013-01-10
JP5843290B2 (ja) 2016-01-13
CN102472301A (zh) 2012-05-23

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Legal Events

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AS Assignment

Owner name: GRACO MINNESOTA INC., MINNESOTA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SEBION, MICHAEL J.;DOMER, TODD A.;BRUDEVOLD, MARK J.;AND OTHERS;SIGNING DATES FROM 20150908 TO 20151009;REEL/FRAME:036802/0437

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION