GB1448270A – Arrangement for limiting the reaction in hydraulic servoassisted steering gear
– Google Patents
GB1448270A – Arrangement for limiting the reaction in hydraulic servoassisted steering gear
– Google Patents
Arrangement for limiting the reaction in hydraulic servoassisted steering gear
Info
Publication number
GB1448270A
GB1448270A
GB5299373A
GB5299373A
GB1448270A
GB 1448270 A
GB1448270 A
GB 1448270A
GB 5299373 A
GB5299373 A
GB 5299373A
GB 5299373 A
GB5299373 A
GB 5299373A
GB 1448270 A
GB1448270 A
GB 1448270A
Authority
GB
United Kingdom
Prior art keywords
valve
reaction
land
arrangement
chambers
Prior art date
1972-11-16
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
GB5299373A
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.)
Thomas K H
Original Assignee
Thomas K H
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.)
1972-11-16
Filing date
1973-11-15
Publication date
1976-09-02
1973-11-15
Application filed by Thomas K H
filed
Critical
Thomas K H
1976-09-02
Publication of GB1448270A
publication
Critical
patent/GB1448270A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
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
Y10T137/2559—Self-controlled branched flow systems
Y10T137/2564—Plural inflows
Y10T137/2567—Alternate or successive inflows
Abstract
1448270 Vehicle power steering K-H THOMAS [trading as LANGEN & CO] 15 Nov 1973 [16 Nov 1972] 52993/73 Heading B7H In an arrangement for limiting the reaction in hydraulic servo assisted steering gear the reaction chambers 6, 7, Fig. 1, associated with relatively movable input and output members 3, 2 respectively communicate with associated working chambers of a servomotor (not shown) through a throttling constriction 10, 11 as well as with a common pressure limiting valve 19 through an interposed check valve 16, 17 which opens in the direction towards the pressure limiting valve. In a practical arrangement, Fig. 3, control pistons 43, 44 are operated by tappet members 45, 46 controlled by an actuating member 47 operatively connected to the shaft of a steering wheel 48. The control pistons are adapted to alternatively provide communication between a working chamber 59, 60 and a pressure source 50 or a reservoir T 1 , T 2 . In a manner not shown the valve body 40 is operatively connected with one of the pistonrods 57. Reaction chambers 63, 64 communicate with the working chambers 59, 60 through ducts 65, 67 containing throttling constriction 66, 68 whereas ducts 69, 72 connect the reaction chambers to pressure limiting valve 71 via check valves 70, 73. The valve 71 is operated by fluid which is displaced from annular chamber 77 through throttling notches 79 in the land 75 and which then applies thrust to the end face of land 75. When a predetermined pressure is exceeded the control piston is shifted against a spring 80 and land 76 is forced to uncover a port between chamber 77 and an exhaust duct 78. Alternatively a damped seated valve may be employed.
GB5299373A
1972-11-16
1973-11-15
Arrangement for limiting the reaction in hydraulic servoassisted steering gear
Expired
GB1448270A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2256072A
DE2256072C3
(en)
1972-11-16
1972-11-16
Arrangement for limiting the reaction force in hydraulic power steering devices
Publications (1)
Publication Number
Publication Date
GB1448270A
true
GB1448270A
(en)
1976-09-02
Family
ID=5861841
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5299373A
Expired
GB1448270A
(en)
1972-11-16
1973-11-15
Arrangement for limiting the reaction in hydraulic servoassisted steering gear
Country Status (6)
Country
Link
US
(1)
US3922953A
(en)
JP
(1)
JPS4980727A
(en)
DE
(1)
DE2256072C3
(en)
FR
(1)
FR2207052B1
(en)
GB
(1)
GB1448270A
(en)
IT
(1)
IT995987B
(en)
Families Citing this family (21)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4123964A
(en)
*
1972-12-18
1978-11-07
Langen & Co.
Pressure control means for distribution of medium from a reservoir or storage vessel
DE2436315C2
(en)
*
1974-07-27
1984-03-08
Integral Hydraulik & Co, 4000 Düsseldorf
Pressure fluid sequence control for power steering for vehicles
GB1534707A
(en)
*
1974-12-21
1978-12-06
Langen & Co
Servo-assisted steering gear for motor vehicles
DE2518337A1
(en)
*
1975-04-25
1976-11-04
Bosch Gmbh Robert
HYDRAULIC POWER STEERING FOR MOTOR VEHICLES
FR2355185A2
(en)
*
1976-02-27
1978-01-13
Citroen Sa
PRESSURIZED FLUID ASSISTED MECHANICAL CONTROL DEVICE
US4179980A
(en)
*
1976-04-03
1979-12-25
Aisin Seiki Kabushiki Kaisha
Hydraulic brake booster
DE2710001A1
(en)
*
1977-03-08
1978-09-14
Daimler Benz Ag
PRESSURE RELIEF VALVE FOR THE WORKING PRESSURE OF A POWER STEERING
ES472088A1
(en)
*
1978-07-27
1979-03-16
Bendiberica Sa
Rotating hydraulic distributor, particularly for power-assisted steering mechanisms.
DE2903988C2
(en)
*
1979-02-02
1986-09-11
Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen
Hydraulic power steering, in particular for motor vehicles
US4385493A
(en)
*
1980-08-06
1983-05-31
Zahnradfabrik Friedrichshafen, Ag
Hydraulically assisted steering device
DE3122368A1
(en)
*
1981-06-05
1982-12-23
Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen
HYDRO CONTROL
DE3122370A1
(en)
*
1981-06-05
1982-12-23
Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen
“POWER STEERING, ESPECIALLY FOR MOTOR VEHICLES”
BR8407326A
(en)
*
1983-07-23
1986-09-23
Zahnradfabrik Friedrichshafen
PRESSURE MEDIUM CONTROL DEVICE FOR AUXILIARY POWER DIRECTIONS
ES527578A0
(en)
*
1983-11-18
1984-11-01
Bendiberica Sa
IMPROVEMENTS IN HYDRAULIC DISTRIBUTORS FOR SERVOMECHANISMS
EP0232269B1
(en)
*
1984-10-05
1989-01-04
ZF FRIEDRICHSHAFEN Aktiengesellschaft
Steering servo-system, especially for motorized vehicles
DE3644886C2
(en)
*
1985-08-09
1988-09-22
Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen, De
JPH0784180B2
(en)
*
1986-01-16
1995-09-13
豊田工機株式会社
Steering force control device for power steering device
DE4447543C2
(en)
*
1994-06-28
1997-04-17
Daimler Benz Ag
Servo valve arrangement
US5497692A
(en)
*
1995-03-02
1996-03-12
Caterpillar Inc.
Electrohydraulic steering system
DE19546291A1
(en)
*
1995-12-12
1997-07-03
Zahnradfabrik Friedrichshafen
Power steering, in particular for motor vehicles
DE102013107097A1
(en)
*
2013-07-05
2015-01-08
Zf Lenksysteme Gmbh
PISTON VALVE
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2063937A
(en)
*
1931-01-10
1936-12-15
John J Kundig
Fluid pressure actuator
US2395811A
(en)
*
1942-02-21
1946-03-05
Vickers Inc
Power transmission
US2468960A
(en)
*
1944-05-10
1949-05-03
John S Case
Valve device
US2554843A
(en)
*
1945-07-31
1951-05-29
Olive Bertha Staude
Proportional pressure doubleacting power amplifier
BE512538A
(en)
*
1951-07-02
DE1550180B1
(en)
*
1966-03-26
1970-01-29
Danfoss As
Safety valve arrangement for a hydraulic system
DE1291226B
(en)
*
1966-06-24
1969-03-20
Daimler Benz Ag
Power steering for motor vehicles
CH486637A
(en)
*
1967-11-20
1970-02-28
Wadefelt Carl I
Hydraulic relay
JPS5016054B1
(en)
*
1969-10-13
1975-06-10
US3800670A
(en)
*
1969-10-21
1974-04-02
Caterpillar Tractor Co
High pressure implement hydraulic circuit
DE2009574C3
(en)
*
1970-02-28
1980-05-29
Daimler-Benz Ag, 7000 Stuttgart
Hydraulic power steering for vehicles
1972
1972-11-16
DE
DE2256072A
patent/DE2256072C3/en
not_active
Expired
1973
1973-10-18
IT
IT30285/73A
patent/IT995987B/en
active
1973-11-08
JP
JP48125906A
patent/JPS4980727A/ja
active
Pending
1973-11-12
US
US415168A
patent/US3922953A/en
not_active
Expired – Lifetime
1973-11-15
FR
FR7340768A
patent/FR2207052B1/fr
not_active
Expired
1973-11-15
GB
GB5299373A
patent/GB1448270A/en
not_active
Expired
Also Published As
Publication number
Publication date
FR2207052A1
(en)
1974-06-14
IT995987B
(en)
1975-11-20
JPS4980727A
(en)
1974-08-03
DE2256072C3
(en)
1979-11-29
DE2256072B2
(en)
1979-04-05
DE2256072A1
(en)
1974-06-06
FR2207052B1
(en)
1975-03-21
US3922953A
(en)
1975-12-02
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(en)
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Legal Events
Date
Code
Title
Description
1977-01-13
PS
Patent sealed [section 19, patents act 1949]
1982-06-23
PCNP
Patent ceased through non-payment of renewal fee
