GB1522014A – Hydraulic system for a vehicle including an auxiliary hydraulic control circuit
– Google Patents
GB1522014A – Hydraulic system for a vehicle including an auxiliary hydraulic control circuit
– Google Patents
Hydraulic system for a vehicle including an auxiliary hydraulic control circuit
Info
Publication number
GB1522014A
GB1522014A
GB3708575A
GB3708575A
GB1522014A
GB 1522014 A
GB1522014 A
GB 1522014A
GB 3708575 A
GB3708575 A
GB 3708575A
GB 3708575 A
GB3708575 A
GB 3708575A
GB 1522014 A
GB1522014 A
GB 1522014A
Authority
GB
United Kingdom
Prior art keywords
valve
steering
control circuit
coupler
pressure
Prior art date
1974-10-01
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
GB3708575A
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.)
1974-10-01
Filing date
1975-09-09
Publication date
1978-08-23
1975-09-09
Application filed by Caterpillar Tractor Co
filed
Critical
Caterpillar Tractor Co
1978-08-23
Publication of GB1522014A
publication
Critical
patent/GB1522014A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
B—PERFORMING OPERATIONS; TRANSPORTING
B60—VEHICLES IN GENERAL
B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
B60K25/00—Auxiliary drives
B—PERFORMING OPERATIONS; TRANSPORTING
B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62D—MOTOR VEHICLES; TRAILERS
B62D5/00—Power-assisted or power-driven steering
B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
Abstract
1522014 Vehicle steering systems CATERPILLAR TRACTOR CO 9 Sept 1975 [1 Oct 1974] 37085/75 Heading B7H An earthmoving vehicle has hydraulic circuitry for controlling steering, braking and an implement coupling device. A pump 11 supplies an open centre steering control valve 24 via a flow control and pressure relief valve 13 and output from the steering valve 24 is connected to both a brake control circuit 14 and the implement coupler control circuit 15. The brake control circuit is of the open centre type and is provided with a pressure limiting valve 40. The coupler circuit includes a manually operated valve 34 controlling the locking cylinders 35, 36 of the coupler and a velocity fuse 32 and orifice 33 for limiting the flow rate to the valve. The pump delivers fluid at about 2,500 p.s.i. to the valve 13 where it passes via bores 17, 19 and conduit 22 to the steering valve. Should the flow rate exceed 11 g.p.m. the body defining bores 17, 19 moves against spring 21 and fluid spills back to reservoir. If the pressure rises above 2,500 p.s.i. a relief valve 41 opens and fluid is returned to reservoir via line 42. The pressure relief valve 40 of the brake control circuit opens at about 300 p.s.i. thus allowing the steering and braking circuits to be used simultaneously. Fluid exhausted from the steering cylinders is at about 10-15 p.s.i. if the brake system is inoperative and this pressure is insufficient to operate the coupling cylinders 35, 36. Only after the pressure increase caused by operation of the brakes may the coupler be operated, flow to the coupler valve 34 being stopped above 3 g.p.m. by the velocity fuse 32 being restricted to 2 g.p.m. by the orifice 33.
GB3708575A
1974-10-01
1975-09-09
Hydraulic system for a vehicle including an auxiliary hydraulic control circuit
Expired
GB1522014A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US51107374A
1974-10-01
1974-10-01
Publications (1)
Publication Number
Publication Date
GB1522014A
true
GB1522014A
(en)
1978-08-23
Family
ID=24033359
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3708575A
Expired
GB1522014A
(en)
1974-10-01
1975-09-09
Hydraulic system for a vehicle including an auxiliary hydraulic control circuit
Country Status (2)
Country
Link
JP
(1)
JPS5157382A
(en)
GB
(1)
GB1522014A
(en)
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2447843A1
(en)
*
1979-01-30
1980-08-29
Nissan Motor
HYDRAULIC SYSTEM FOR MOTOR VEHICLE
FR2513949A1
(en)
*
1981-10-07
1983-04-08
Linde Ag
Vehicle with two hydraulic pumps of different capacity – has large capacity pump connected to large user unit and small pump to steering support system and to low usage consumer unit
US5946911A
(en)
*
1997-01-07
1999-09-07
Valeo Electrical Systems, Inc.
Fluid control system for powering vehicle accessories
US5960628A
(en)
*
1995-03-09
1999-10-05
Valeo Electrical Systems, Inc.
Hydraulically powered fan and power steering in vehicle
US6016657A
(en)
*
1995-03-09
2000-01-25
Valeo Electrical Systems, Inc.
Automotive hydraulic system and method
US6021641A
(en)
*
1995-03-09
2000-02-08
Buschur; Jeffrey J.
Hydraulically powered fan system for vehicles
US6629411B2
(en)
2001-05-09
2003-10-07
Valeo Electrical Systems, Inc.
Dual displacement motor control
CN102837735A
(en)
*
2012-07-27
2012-12-26
浙江万安科技股份有限公司
Novel car chassis hydraulic active control system
1975
1975-09-09
GB
GB3708575A
patent/GB1522014A/en
not_active
Expired
1975-09-26
JP
JP11570175A
patent/JPS5157382A/en
active
Pending
Cited By (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2447843A1
(en)
*
1979-01-30
1980-08-29
Nissan Motor
HYDRAULIC SYSTEM FOR MOTOR VEHICLE
FR2513949A1
(en)
*
1981-10-07
1983-04-08
Linde Ag
Vehicle with two hydraulic pumps of different capacity – has large capacity pump connected to large user unit and small pump to steering support system and to low usage consumer unit
US5960628A
(en)
*
1995-03-09
1999-10-05
Valeo Electrical Systems, Inc.
Hydraulically powered fan and power steering in vehicle
US6016657A
(en)
*
1995-03-09
2000-01-25
Valeo Electrical Systems, Inc.
Automotive hydraulic system and method
US6021641A
(en)
*
1995-03-09
2000-02-08
Buschur; Jeffrey J.
Hydraulically powered fan system for vehicles
US6158216A
(en)
*
1995-03-09
2000-12-12
Valeo Electrical Systems, Inc.
Hydraulically powered fan system for vehicles
US5946911A
(en)
*
1997-01-07
1999-09-07
Valeo Electrical Systems, Inc.
Fluid control system for powering vehicle accessories
US6629411B2
(en)
2001-05-09
2003-10-07
Valeo Electrical Systems, Inc.
Dual displacement motor control
CN102837735A
(en)
*
2012-07-27
2012-12-26
浙江万安科技股份有限公司
Novel car chassis hydraulic active control system
CN102837735B
(en)
*
2012-07-27
2014-02-05
浙江万安科技股份有限公司
Car chassis hydraulic active control system
Also Published As
Publication number
Publication date
JPS5157382A
(en)
1976-05-19
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Legal Events
Date
Code
Title
Description
1978-12-13
PS
Patent sealed
1981-04-08
PCNP
Patent ceased through non-payment of renewal fee
