EP4065851A4 - Hydraulic power units with submerged motors - Google Patents

Hydraulic power units with submerged motors Download PDF

Info

Publication number: EP4065851A4
Authority: EP; European Patent Office
Prior art keywords: hydraulic power; power units; submerged motors; submerged; motors
Prior art date: 2019-12-14
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP19955767.9A

Other languages

German (de)

French (fr)

Other versions

EP4065851A1 (en

Inventor

Chun Nien King

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.)

Kti Hydraulics Inc

Original Assignee

Kti Hydraulics Inc

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.)

2019-12-14

Filing date

2019-12-14

Publication date

2022-12-21

2019-12-14 Application filed by Kti Hydraulics Inc filed Critical Kti Hydraulics Inc

2022-10-05 Publication of EP4065851A1 publication Critical patent/EP4065851A1/en

2022-12-21 Publication of EP4065851A4 publication Critical patent/EP4065851A4/en

Status Withdrawn legal-status Critical Current

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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- 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
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/021—Pumping installations or systems having reservoirs the pump being immersed in the reservoir
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
- F15B13/0814—Monoblock manifolds
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0878—Assembly of modular units
- F15B13/0896—Assembly of modular units using different types or sizes of valves
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/3051—Cross-check valves
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/30515—Load holding valves
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Fluid-Pressure Circuits (AREA)
Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

EP19955767.9A 2019-12-14 2019-12-14 Hydraulic power units with submerged motors Withdrawn EP4065851A4 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US2019/066410 WO2021118607A1 (en)	2019-12-14	2019-12-14	Hydraulic power units with submerged motors

Publications (2)

Publication Number	Publication Date
EP4065851A1 EP4065851A1 (en)	2022-10-05
EP4065851A4 true EP4065851A4 (en)	2022-12-21

Family

ID=76329041

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19955767.9A Withdrawn EP4065851A4 (en)	2019-12-14	2019-12-14	Hydraulic power units with submerged motors

Country Status (3)

Country	Link
EP (1)	EP4065851A4 (en)
CN (1)	CN115053074A (en)
WO (1)	WO2021118607A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP4239195A1 (en) *	2022-03-01	2023-09-06	Mathieu	Hydraulic control unit
KR102732118B1 (en) *	2023-12-11	2024-11-19	지영수	Submerged Power Pack Having Flow Path Inside Motor Rotational Axis

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19612582A1 (en) *	1996-03-29	1997-10-02	Miag Fahrzeugbau Gmbh	Drive unit for vehicle e.g forklift truck
US5988989A (en) *	1997-12-08	1999-11-23	Fenner Fluid Power, Inc.	Compact hydraulic power unit having a reservoir closed by a manifold having a hydraulic circuit
US6290474B1 (en) *	1998-11-25	2001-09-18	Still, Gmbh	Machine hydraulic system
DE202005005620U1 (en) *	2005-04-08	2006-08-17	Hawe Hydraulik Gmbh & Co. Kg	pump unit
US20170089369A1 (en) *	2015-02-10	2017-03-30	K.T.I. Hydraulics, Inc.	Voltage detector switch
WO2017077060A1 (en) *	2015-11-06	2017-05-11	Knorr-Bremse Systeme für Schienenfahrzeuge GmbH	Hydraulic device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AU7352787A (en) *	1986-04-21	1987-11-24	Rent, Ltd.	High efficiency pump method and apparatus with hydraulic actuation
JPH07115812B2 (en) *	1989-09-29	1995-12-13	三菱電機株式会社	Hydraulic elevator power unit
US5109672A (en) *	1990-01-16	1992-05-05	The Boeing Company	Method and apparatus for cooling and replenishing aircraft hydraulic actuators
US6371005B1 (en) *	1999-08-30	2002-04-16	Otis Elevator Company	Hydraulic power unit for an elevator drive
EP2746590B1 (en) *	2012-12-19	2016-03-09	Bucher Hydraulics S.p.A.	Power unit to move at least a hydraulic actuator
US11441551B2 (en) *	2017-04-28	2022-09-13	Graco Minnesota Inc.	Portable hydraulic power unit

2019
- 2019-12-14 EP EP19955767.9A patent/EP4065851A4/en not_active Withdrawn
- 2019-12-14 WO PCT/US2019/066410 patent/WO2021118607A1/en unknown
- 2019-12-14 CN CN201980103539.0A patent/CN115053074A/en active Pending

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19612582A1 (en) *	1996-03-29	1997-10-02	Miag Fahrzeugbau Gmbh	Drive unit for vehicle e.g forklift truck
US5988989A (en) *	1997-12-08	1999-11-23	Fenner Fluid Power, Inc.	Compact hydraulic power unit having a reservoir closed by a manifold having a hydraulic circuit
US6290474B1 (en) *	1998-11-25	2001-09-18	Still, Gmbh	Machine hydraulic system
DE202005005620U1 (en) *	2005-04-08	2006-08-17	Hawe Hydraulik Gmbh & Co. Kg	pump unit
US20170089369A1 (en) *	2015-02-10	2017-03-30	K.T.I. Hydraulics, Inc.	Voltage detector switch
WO2017077060A1 (en) *	2015-11-06	2017-05-11	Knorr-Bremse Systeme für Schienenfahrzeuge GmbH	Hydraulic device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021118607A1 *

Also Published As

Publication number	Publication date
CN115053074A (en)	2022-09-13
EP4065851A1 (en)	2022-10-05
WO2021118607A1 (en)	2021-06-17

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Legal Events

Date	Code	Title	Description
2021-06-18	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2022-09-02	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2022-09-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2022-10-05	17P	Request for examination filed	Effective date: 20220628
2022-10-05	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2022-12-21	A4	Supplementary search report drawn up and despatched	Effective date: 20221118
2022-12-21	RIC1	Information provided on ipc code assigned before grant	Ipc: F15B 21/00 20060101ALI20221114BHEP Ipc: F15B 13/04 20060101ALI20221114BHEP Ipc: F15B 15/18 20060101ALI20221114BHEP Ipc: F15B 1/26 20060101ALI20221114BHEP Ipc: F15B 13/042 20060101AFI20221114BHEP
2023-03-22	DAV	Request for validation of the european patent (deleted)
2023-03-22	DAX	Request for extension of the european patent (deleted)
2023-10-20	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
2023-11-22	18D	Application deemed to be withdrawn	Effective date: 20230617