EP2459886A1 - Hydraulic power module - Google Patents
Hydraulic power moduleInfo
- Publication number
- EP2459886A1 EP2459886A1 EP10740086A EP10740086A EP2459886A1 EP 2459886 A1 EP2459886 A1 EP 2459886A1 EP 10740086 A EP10740086 A EP 10740086A EP 10740086 A EP10740086 A EP 10740086A EP 2459886 A1 EP2459886 A1 EP 2459886A1
- Authority
- EP
- European Patent Office
- 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.)
- Withdrawn
Links
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
- 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
-
- 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]
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 (HPM) 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.
- 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 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.
- Figure 1 shows a front view of the HPM of the instant invention.
- Figure 2 shows a rear view of the HPM of the instant invention.
- Figure 3 shows a view with the reservoir removed showing the pump of the HPM of the instant invention.
- Figure 4 is a schematic view of the HPM of the instant invention.
- Figure 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. When the motor 20 is spinning, 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.
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)
Abstract
The hydraulic power module 10 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.
Description
HYDRAULIC POWERMODULE
TECHNICAL FIELD
This application claims the benefit of US Application serial number 61/229,298, filed July 29. 2009, the contents of which are hereby incorporated by reference.
BACKGROUND ART
Hydraulic power modules for controlling fluid dispensing and other apparatus are well known.
DISCLOSURE OF THE INVENTION
It is an object of this invention to create a hydraulic power module that will drastically improve control, increase mechanical life, use a simplified design, reduce power consumption, reduce cooling requirements and reduce noise levels. 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 (HPM) 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.
There are a number of advantages to the system of the instant invention such as dramatic increases in control by using a DC servo motor and motor controller. Another result is improved system mechanical life in that when no flow is required, all parts stop moving which can result in less wear. 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.
These and other objects and advantages of the invention will appear more fully from the following description made in conjunction with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1 shows a front view of the HPM of the instant invention. Figure 2 shows a rear view of the HPM of the instant invention. Figure 3 shows a view with the reservoir removed showing the pump of the HPM of the instant invention.
Figure 4 is a schematic view of the HPM of the instant invention.
Figure 5 shows a schematic view of the fluid circuit of the HPM of the instant invention.
BEST MODE FOR CARRYING OUT THE 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. When the motor 20 is spinning, 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.
It is contemplated that various changes and modifications may be made to the hydraulic power module without departing from the spirit and scope of the invention as defined by the following claims.
Claims
1. The hydraulic power module for controlling at least one hydraulic cylinder, said hydraulic cylinder comprising: a hydraulic manifold to route hydraulic fluid; a hydraulic reservoir for containing hydraulic fluid; a hydraulic pump; a DC servo motor; a directional valve; a cooling system; and a motor control for controlling said DC servo motor.
2. The hydraulic power module of claim 1 and further comprising an integrated filter housing.
3. The hydraulic power module of claim 1 wherein motor control is capable of holding pressure under conditions of no flow without rotation of said motor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22929809P | 2009-07-29 | 2009-07-29 | |
PCT/US2010/043338 WO2011014486A1 (en) | 2009-07-29 | 2010-07-27 | Hydraulic power module |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2459886A1 true EP2459886A1 (en) | 2012-06-06 |
Family
ID=42937653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10740086A Withdrawn EP2459886A1 (en) | 2009-07-29 | 2010-07-27 | Hydraulic power module |
Country Status (11)
Country | Link |
---|---|
US (1) | US20120121439A1 (en) |
EP (1) | EP2459886A1 (en) |
JP (1) | JP5843290B2 (en) |
KR (1) | KR20120051722A (en) |
CN (1) | CN102472301B (en) |
AU (1) | AU2010276482B2 (en) |
BR (1) | BR112012001418A2 (en) |
IN (1) | IN2012DN01705A (en) |
MX (1) | MX2012001217A (en) |
RU (1) | RU2012105643A (en) |
WO (1) | WO2011014486A1 (en) |
Families Citing this family (6)
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 (en) * | 2013-10-29 | 2015-07-01 | 국방과학연구소 | Hydraulic system |
CN107000355A (en) * | 2014-09-19 | 2017-08-01 | Siti-B&T集团股份公司 | The hydraulic system for the forcing press for being used to manufacture ceramic product is particularly for forcing press |
CN107725506A (en) * | 2017-10-23 | 2018-02-23 | 天津世仓工业设备有限公司 | A kind of numerical control press electrohydraulic servo-controlling system |
DE202019005807U1 (en) | 2019-07-30 | 2022-03-25 | Dana Motion Systems Italia S.R.L. | Adapter plug for a twist-on filter |
EP3771482A1 (en) | 2019-07-30 | 2021-02-03 | Dana Motion Systems Italia S.R.L. | Adaptor plug for a spin-on filter |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5778671A (en) * | 1996-09-13 | 1998-07-14 | Vickers, Inc. | Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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US3902318A (en) * | 1974-08-28 | 1975-09-02 | Sperry Rand Corp | Power transmission |
US4043127A (en) * | 1975-07-02 | 1977-08-23 | Kubik Philip A | Reservoir housing |
JPS62184206A (en) * | 1986-02-07 | 1987-08-12 | Hitachi Seiko Ltd | Electro-hydraulic convertible driving device |
US5144801A (en) * | 1989-04-28 | 1992-09-08 | Parker Hannifin Corporation | Electro-hydraulic actuator system |
US6282893B1 (en) * | 1999-08-19 | 2001-09-04 | Delaware Capital Formation, Inc. | Self-contained actuator |
DE10196072T1 (en) * | 2000-04-14 | 2003-07-03 | Actuant Corp | Variable speed hydraulic pump |
JP2001317447A (en) * | 2000-05-09 | 2001-11-16 | Tokimec Inc | Hydraulic device |
JP2001317507A (en) * | 2000-05-11 | 2001-11-16 | Daishin Shoko:Kk | Oil tank structure in hydraulic cylinder device |
JP2002147405A (en) * | 2000-11-14 | 2002-05-22 | Toyooki Kogyo Co Ltd | Hydraulic driver |
JP2003172306A (en) * | 2001-12-04 | 2003-06-20 | Komatsu Ltd | Hydraulic signal output circuit |
FR2851306B1 (en) * | 2003-02-18 | 2006-08-04 | Giat Ind Sa | COMPACT ELECTRO-HYDRAULIC GENERATOR FOR TURRET ENGINE |
JP4439847B2 (en) * | 2003-06-24 | 2010-03-24 | 東京計器株式会社 | Hydraulic device |
US7086225B2 (en) * | 2004-02-11 | 2006-08-08 | Haldex Hydraulics Corporation | Control valve supply for rotary hydraulic machine |
ITRM20060085U1 (en) * | 2006-05-17 | 2007-11-18 | Findisa S R L | HYDRAULIC LOW VOLTAGE SYSTEM WITH ELECTRONIC CONTROL OF AUTOMATIC CLOSURE HANDLING |
DE102006026077A1 (en) * | 2006-06-03 | 2007-12-06 | Hydac Process Technology Gmbh | fluid system |
US7420350B2 (en) * | 2006-11-17 | 2008-09-02 | Gm Global Technology Operations, Inc. | Methods and apparatus for an active front steering actuator |
CN101042149A (en) * | 2007-04-20 | 2007-09-26 | 绍兴市肯特机械电子有限公司 | Hydraulic power system controlled by servo electric machine |
CN101382157A (en) * | 2007-09-07 | 2009-03-11 | 中国科学院沈阳自动化研究所 | Electrohydraulic mixed power cylinder |
-
2010
- 2010-07-27 CN CN201080033083.4A patent/CN102472301B/en not_active Expired - Fee Related
- 2010-07-27 JP JP2012522954A patent/JP5843290B2/en not_active Expired - Fee Related
- 2010-07-27 US US13/386,962 patent/US20120121439A1/en not_active Abandoned
- 2010-07-27 AU AU2010276482A patent/AU2010276482B2/en not_active Ceased
- 2010-07-27 KR KR1020127005012A patent/KR20120051722A/en active IP Right Grant
- 2010-07-27 IN IN1705DEN2012 patent/IN2012DN01705A/en unknown
- 2010-07-27 BR BR112012001418A patent/BR112012001418A2/en not_active IP Right Cessation
- 2010-07-27 RU RU2012105643/06A patent/RU2012105643A/en not_active Application Discontinuation
- 2010-07-27 EP EP10740086A patent/EP2459886A1/en not_active Withdrawn
- 2010-07-27 MX MX2012001217A patent/MX2012001217A/en active IP Right Grant
- 2010-07-27 WO PCT/US2010/043338 patent/WO2011014486A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5778671A (en) * | 1996-09-13 | 1998-07-14 | Vickers, Inc. | Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit |
Non-Patent Citations (1)
Title |
---|
See also references of WO2011014486A1 * |
Also Published As
Publication number | Publication date |
---|---|
BR112012001418A2 (en) | 2019-09-24 |
CN102472301A (en) | 2012-05-23 |
JP2013501196A (en) | 2013-01-10 |
KR20120051722A (en) | 2012-05-22 |
AU2010276482A1 (en) | 2012-02-02 |
MX2012001217A (en) | 2012-04-30 |
US20120121439A1 (en) | 2012-05-17 |
RU2012105643A (en) | 2013-09-10 |
IN2012DN01705A (en) | 2015-06-05 |
JP5843290B2 (en) | 2016-01-13 |
CN102472301B (en) | 2015-12-16 |
WO2011014486A1 (en) | 2011-02-03 |
AU2010276482B2 (en) | 2015-07-09 |
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Legal Events
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17Q | First examination report despatched |
Effective date: 20140715 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20180201 |