FR2137456B1 - - Google Patents

Info

Publication number: FR2137456B1
Authority: FR; France
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.): Expired

Application number

FR7203276A

Other versions

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.)

Koehring Co

Original Assignee

Koehring Co

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.)

1971-05-17

Filing date

1972-02-01

Publication date

1974-12-13

1972-02-01 Application filed by Koehring Co filed Critical Koehring Co

1972-12-29 Publication of FR2137456A1 publication Critical patent/FR2137456A1/fr

1974-12-13 Application granted granted Critical

1974-12-13 Publication of FR2137456B1 publication Critical patent/FR2137456B1/fr

Status Expired legal-status Critical Current

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
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0708—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising means to avoid jamming of the slide or means to modify the flow
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/8667—Reciprocating valve
- Y10T137/86694—Piston valve
- Y10T137/8671—With annular passage [e.g., spool]
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86718—Dividing into parallel flow paths with recombining
- Y10T137/86759—Reciprocating
- Y10T137/86791—Piston

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Multiple-Way Valves (AREA)
Sliding Valves (AREA)
Reciprocating Pumps (AREA)

FR7203276A 1971-05-17 1972-02-01 Expired FR2137456B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US14383371A	1971-05-17	1971-05-17

Publications (2)

Publication Number	Publication Date
FR2137456A1 FR2137456A1 (fr)	1972-12-29
FR2137456B1 true FR2137456B1 (fr)	1974-12-13

Family

ID=22505868

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7203276A Expired FR2137456B1 (fr)	1971-05-17	1972-02-01

Country Status (5)

Country	Link
US (1)	US3729026A (fr)
CA (1)	CA948521A (fr)
DE (1)	DE2223419C2 (fr)
FR (1)	FR2137456B1 (fr)
GB (1)	GB1376657A (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3990477A (en) *	1973-04-30	1976-11-09	Caterpillar Tractor Co.	Force balanced valve spool
US4155535A (en) *	1977-03-09	1979-05-22	The Johns Hopkins University	Low axial force servo valve spool
EP0092074A1 (fr) *	1982-04-19	1983-10-26	Deere & Company	Soupape de commande
DE3415621C3 (de) *	1983-06-13	1997-07-17	Husco Int Inc	Hydraulisches Mehrwege-Steuerventil
DE3435985A1 (de) *	1984-10-01	1986-04-10	Robert Bosch Gmbh, 7000 Stuttgart	Hydraulisches wegeventil
JP2541805B2 (ja) *	1987-01-14	1996-10-09	富士重工業株式会社	無段変速機の変速制御装置
US4941508A (en) *	1989-12-28	1990-07-17	Dana Corporation	Force balanced hydraulic spool valve
US5535773A (en) *	1994-09-28	1996-07-16	Hr Textron Inc.	Hydromechanical differentiating apparatus
WO1997025535A1 (fr) *	1996-01-11	1997-07-17	Hr Textron Inc.	Appareil differentiateur hydromecanique
US5911245A (en) *	1998-06-09	1999-06-15	Caterpillar Inc.	Flow force spool valve
AT406292B (de) *	1998-07-22	2000-03-27	Hainzl Industriesysteme Ges M	Vorrichtung zum abbremsen eines kolbens eines hydraulikzylinders
US6769884B2 (en) *	2000-12-11	2004-08-03	Cory L. Miller	Hydraulic drive system for piston pumps
US8833390B2 (en)	2011-05-31	2014-09-16	Mueller International, Llc	Valve meter assembly and method
DE102011119945A1 (de) *	2011-12-01	2013-06-06	Liebherr-Hydraulikbagger Gmbh	Hydrauliksystem
US9494249B2 (en)	2014-05-09	2016-11-15	Mueller International, Llc	Mechanical stop for actuator and orifice
DE102018218301A1 (de) *	2018-10-25	2020-04-30	Danfoss Power Solutions Gmbh & Co. Ohg	Verdrängungssteuerungsvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2783745A (en) *	1953-07-21	1957-03-05	Parker Appliance Co	Valve mechanism for hydraulically operated motors
US2971536A (en) *	1958-06-26	1961-02-14	Caterpillar Tractor Co	Hydraulic control valve throttling mechanism
BE631724A (fr) *	1962-05-03	1900-01-01
US3198212A (en) *	1963-05-22	1965-08-03	Caterpillar Tractor Co	Metering slot configuration for hydraulic control valves
US3263574A (en) *	1964-06-15	1966-08-02	Hydraulic Unit Specialities Co	Speed and directional control valve for double acting lift cylinder
DE1500213A1 (de) *	1965-07-08	1969-07-10	Rexroth Gmbh G L	Ventil,insbesondere Wegeventil fuer Druckfluessigkeit
US3529702A (en) *	1968-04-29	1970-09-22	Allis Chalmers Mfg Co	Winch clutch and brake with modulating selector valve
US3534774A (en) *	1968-11-14	1970-10-20	Koehring Co	Pressure compensated control valve

1971
- 1971-05-17 US US00143833A patent/US3729026A/en not_active Expired - Lifetime
- 1971-11-23 CA CA128,344A patent/CA948521A/en not_active Expired
1972
- 1972-01-21 GB GB303572A patent/GB1376657A/en not_active Expired
- 1972-02-01 FR FR7203276A patent/FR2137456B1/fr not_active Expired
- 1972-05-13 DE DE2223419A patent/DE2223419C2/de not_active Expired

Also Published As

Publication number	Publication date
DE2223419A1 (de)	1972-11-23
CA948521A (en)	1974-06-04
DE2223419C2 (de)	1983-08-11
GB1376657A (en)	1974-12-11
US3729026A (en)	1973-04-24
FR2137456A1 (fr)	1972-12-29

Legal Events

Date	Code	Title	Description
1986-06-27	TP	Transmission of property

Publication	Publication Date	Title
FR2137456A1 (fr)	1972-12-29
ATA136472A (fr)	1973-12-15
AR196074A1 (fr)	1973-11-30
AU2658571A (fr)	1972-09-21
AU2691671A (fr)	1972-09-28
FR2155867A1 (fr)	1973-05-25
AU2485671A (fr)	1972-08-03
AU2952271A (fr)	1972-12-07
AU2941471A (fr)	1972-11-30
AU2894671A (fr)	1972-11-23
AU2742671A (fr)	1972-10-12
AU2726271A (fr)	1972-10-05
AU2399971A (fr)	1972-07-06
AU2940971A (fr)	1972-11-30
AU2854371A (fr)	1972-11-09
AU2885171A (fr)	1972-11-16
AU2654071A (fr)	1972-09-21
AU2880771A (fr)	1972-11-16
AU2588771A (fr)	1972-08-31
AU2837671A (fr)	1972-11-09
AU2836771A (fr)	1972-11-09
AU2755871A (fr)	1972-10-19
AU2875571A (fr)	1972-11-16
AU2740271A (fr)	1972-10-12
AU2486471A (fr)	1972-08-03