GB1451329A - Fluid suspension system - Google Patents

Fluid suspension system

Info

Publication number
GB1451329A
GB1451329A GB4158073A GB4158073A GB1451329A GB 1451329 A GB1451329 A GB 1451329A GB 4158073 A GB4158073 A GB 4158073A GB 4158073 A GB4158073 A GB 4158073A GB 1451329 A GB1451329 A GB 1451329A
Authority
GB
United Kingdom
Prior art keywords
piston
suspension system
tractor
control valve
fluid suspension
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
GB4158073A
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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.)
Filing date
Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB1451329A publication Critical patent/GB1451329A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D53/00—Tractor-trailer combinations; Road trains
    • B62D53/02—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit
    • B62D53/021—Tractor-trailer combinations; Road trains comprising a uniaxle tractor unit and a uniaxle trailer unit comprising a universal coupling joint
    • 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
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type
    • 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
    • Y10T137/86485—Line condition change responsive release of valve
    • 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
    • Y10T137/86702—With internal flow passage

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

1451329 Scraper bowls CATERPILLAR TRACTOR CO 4 Sept 1973 [5 Sept 1972] 41580/73 Heading E1F [Also in Divisions B7 and F2] An earthmoving scraper bowl 15 is supported on a tractor 13 by a fluid suspension system, Fig. 2, comprising a piston-cylinder unit 44 connected between the scraper bowl and the tractor, an accumulator 45, 46 and a control valve 54, the chamber 44a of the unit being in permanent communication with the accumulator so that the piston is supported at a certain level for normal operation, and the control valve 54 being selectively operable to connect the normally vented rod chamber 44b of the unit to the chamber 44a to lower the piston. To selectively lower the piston a lever 53a in a valve 53 is operated to alter a pilot pressure in a line 55 controlling movement of a valve member (124, Fig. 3 not shown but see Division F2) in the control valve 54, and lines 56 and 57 are placed in communication. Divisional Specification 1451330 has substantially the same disclosure, but claims a hitch assembly with a self-levelling fluid suspension system under the control of an external level regulating lost motion linkage 83, 155,
GB4158073A 1972-09-05 1973-09-04 Fluid suspension system Expired GB1451329A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28602572A 1972-09-05 1972-09-05

Publications (1)

Publication Number Publication Date
GB1451329A true GB1451329A (en) 1976-09-29

Family

ID=23096723

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1959876A Expired GB1451330A (en) 1972-09-05 1973-09-04 Hitch assembly
GB4158073A Expired GB1451329A (en) 1972-09-05 1973-09-04 Fluid suspension system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1959876A Expired GB1451330A (en) 1972-09-05 1973-09-04 Hitch assembly

Country Status (3)

Country Link
US (1) US3797140A (en)
CA (1) CA1009682A (en)
GB (2) GB1451330A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50125418A (en) * 1974-03-19 1975-10-02
US3947981A (en) * 1974-12-09 1976-04-06 International Harvester Company Scraper bowl with hydraulic safety lock
US4079923A (en) * 1976-09-16 1978-03-21 The United States Of America As Represented By The Secretary Of The Army Vehicle suspension employing a liquid spring
DE3212286C2 (en) * 1982-04-02 1984-01-12 Integral Hydraulik & Co, 4000 Düsseldorf Lockable hydro-pneumatic suspension for axles with different loads
CS247736B1 (en) * 1984-04-05 1987-01-15 Oldrich Krejcir Elastic seating of centrifuge's frame on subsoil
US5778569A (en) * 1995-04-02 1998-07-14 Karl Schaeff Gmbh & Co. Multi-purpose construction vehicle with at least two subframes and a self-aligning bearing between the subframes
US6669217B2 (en) * 2001-05-17 2003-12-30 Hadley Products Anti-roll suspension valve body
US10697514B2 (en) * 2010-01-20 2020-06-30 Fox Factory, Inc. Remotely operated bypass for a suspension damper
US8683720B2 (en) * 2011-06-27 2014-04-01 Caterpillar Inc. Hydraulic suspension hitch system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974946A (en) * 1957-01-17 1961-03-14 Tuczek Franz Emil Pneumatic spring structures
US2965372A (en) * 1958-07-08 1960-12-20 Wright Barry Corp Pneumatic isolator
US3135529A (en) * 1960-12-29 1964-06-02 Clark Equipment Co Anti-bouncing vehicle
US3118686A (en) * 1960-12-29 1964-01-21 Clark Equipment Co Bounce retarding vehicle suspension
US3177599A (en) * 1962-09-28 1965-04-13 Gen Motors Corp Pilot operated hydraulic control system for scrapers
US3321216A (en) * 1963-12-23 1967-05-23 Caterpillar Tractor Co Method and apparatus for controlling bounce in tractor-trailer combinations
US3311389A (en) * 1965-06-07 1967-03-28 Caterpillar Tractor Co System for control of pitch and bounce in tractor-trailer combinations
US3450418A (en) * 1966-11-21 1969-06-17 Caterpillar Tractor Co Means to provide temporary firm support for a resiliently supported earthmoving machine
US3449845A (en) * 1966-12-15 1969-06-17 Caterpillar Tractor Co Earthmoving scraper bowl suspension with safety features
US3618984A (en) * 1969-07-28 1971-11-09 Caterpillar Tractor Co Pilot selector valve for simultaneously controlling separate fluid circuits
US3689103A (en) * 1970-11-27 1972-09-05 Pneumo Dynamics Corp Variable height vehicle suspension

Also Published As

Publication number Publication date
GB1451330A (en) 1976-09-29
CA1009682A (en) 1977-05-03
US3797140A (en) 1974-03-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920904