GB1394594A - Double-flow hydraulic operating system - Google Patents

Double-flow hydraulic operating system

Info

Publication number
GB1394594A
GB1394594A GB4822172A GB4822172A GB1394594A GB 1394594 A GB1394594 A GB 1394594A GB 4822172 A GB4822172 A GB 4822172A GB 4822172 A GB4822172 A GB 4822172A GB 1394594 A GB1394594 A GB 1394594A
Authority
GB
United Kingdom
Prior art keywords
valve
oil
pump
conduit
passes
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.)
Expired
Application number
GB4822172A
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.)
Eaton GmbH
Original Assignee
Eaton GmbH
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 Eaton GmbH filed Critical Eaton GmbH
Publication of GB1394594A publication Critical patent/GB1394594A/en
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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps

Abstract

1394594 Hydraulic control circuits EATON GmbH 19 Oct 1972 [27 Nov 1971] 48221/72 Heading F1P With valves 17, 21, as shown in Fig. 1, oil from a pump 2 flows through a connection 9 in a valve block 10 and back to a reservoir 6 through a by-pass valve and a line 16, whilst oil from a pump 3 passes through a shift valve 12 via ports 11, 13 and an annular channel 30 and back to the reservoir through a line 14. If the valve 17 is moved to permit a small flow of oil from the pump 2 to a ram 20 via a conduit 19, a slide 29 of valve 12 does not move against the force of a spring 28. An increased flow moves the slide 29 to the Fig. 2, position in which the flow between ports 11, 13 of oil from the pump 3 is blocked. A check valve 8 now opens and oil from the pump 3 passes through the valve 17 and conduit 19 to the valve 12. Depending on the pressure, the oil flows either through an orifice 37 of a throttle valve 36 and then through the conduit 19, or, the valve 36 is moved off its seat against a spring 35 and the oil passes mainly through an annular passage 31 and holes 38 to the conduit 19.
GB4822172A 1971-11-27 1972-10-19 Double-flow hydraulic operating system Expired GB1394594A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2158870 1971-11-27

Publications (1)

Publication Number Publication Date
GB1394594A true GB1394594A (en) 1975-05-21

Family

ID=5826318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4822172A Expired GB1394594A (en) 1971-11-27 1972-10-19 Double-flow hydraulic operating system

Country Status (4)

Country Link
JP (1) JPS4859270A (en)
DE (1) DE2158870C2 (en)
FR (1) FR2160838B1 (en)
GB (1) GB1394594A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214988A (en) * 1988-02-13 1989-09-13 Gullick Dobson Ltd Control system for hydraulic mine roof support
GB2215700A (en) * 1988-03-16 1989-09-27 Massey Ferguson Mfg Hydraulic circuits

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2329328C2 (en) * 1973-06-08 1985-03-28 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Automatic sequence valve
DE2364282C3 (en) * 1973-12-22 1983-01-13 O & K Orenstein & Koppel Ag, 1000 Berlin Circuit arrangement for hydraulic motors
DE2500863A1 (en) * 1975-01-10 1976-07-15 Eaton Gmbh HYDRAULIC SERVO SYSTEM FOR MOBILE WORK MACHINES, IN PARTICULAR PULL-LOADERS
US4192346A (en) * 1976-08-25 1980-03-11 Shoketsu Kinzoku Kogyo Kabushiki Kaisha Control valve
DE2825578C2 (en) * 1978-06-10 1984-01-26 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Automatic sequence valve for hydraulic systems
DE3222106A1 (en) * 1982-06-11 1983-12-15 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic control arrangement
DE4228599B4 (en) * 1991-09-11 2004-08-19 Bosch Rexroth Ag Hydraulic circuit for the supply of several, serially operated consumers of a hydraulically controlled system
DE19930562A1 (en) * 1999-07-02 2001-01-04 Still Gmbh Hydraulic system for an industrial truck
CN108502816B (en) * 2018-05-08 2023-07-14 安徽合力股份有限公司 Bypass type energy regeneration forklift hydraulic system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US540218A (en) * 1895-05-28 Territory

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214988A (en) * 1988-02-13 1989-09-13 Gullick Dobson Ltd Control system for hydraulic mine roof support
GB2215700A (en) * 1988-03-16 1989-09-27 Massey Ferguson Mfg Hydraulic circuits

Also Published As

Publication number Publication date
DE2158870C2 (en) 1973-09-27
FR2160838A1 (en) 1973-07-06
JPS4859270A (en) 1973-08-20
DE2158870B1 (en) 1973-03-08
FR2160838B1 (en) 1976-06-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee