GB1447836A – Hydraulic pressure control valve
– Google Patents
GB1447836A – Hydraulic pressure control valve
– Google Patents
Hydraulic pressure control valve
Info
Publication number
GB1447836A
GB1447836A
GB3141174A
GB3141174A
GB1447836A
GB 1447836 A
GB1447836 A
GB 1447836A
GB 3141174 A
GB3141174 A
GB 3141174A
GB 3141174 A
GB3141174 A
GB 3141174A
GB 1447836 A
GB1447836 A
GB 1447836A
Authority
GB
United Kingdom
Prior art keywords
pressure
accumulator
piston
valve
main valve
Prior art date
1973-08-08
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
GB3141174A
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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.)
1973-08-08
Filing date
1974-07-16
Publication date
1976-09-02
1974-07-16
Application filed by Nissan Motor Co Ltd
filed
Critical
Nissan Motor Co Ltd
1976-09-02
Publication of GB1447836A
publication
Critical
patent/GB1447836A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
F15B1/02—Installations or systems with accumulators
F15B1/027—Installations or systems with accumulators having accumulator charging devices
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D16/00—Control of fluid pressure
G05D16/14—Control of fluid pressure with auxiliary non-electric power
G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main 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
Y10T137/2496—Self-proportioning or correlating systems
Y10T137/2559—Self-controlled branched flow systems
Y10T137/2574—Bypass or relief controlled by main line fluid condition
Y10T137/2605—Pressure responsive
Y10T137/2622—Bypass or relief valve responsive to pressure downstream of outlet valve
Y10T137/2625—Pilot 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
Y10T137/7504—Removable valve head and seat unit
Y10T137/7668—Retained by bonnet or closure
Abstract
1447836 Fluid-pressure servomotor systems NISSAN MOTOR CO Ltd 16 July 1974 [8 Aug 1973] 31411/74 Heading G3P An hydraulic pressure control system is contained in a body 12 secured in a body (10) Fig. 1 (not shown) which it divides into accumulator and spring chambers 16, 18, the body having two longitudinal leaves housing main 46 and pilot 62 valves with control piston 60, accumulator pressure being raised by a supply at 28 acts on piston 60 against spring 68 so that the spool 62 moves in accordance with accumulator pressure directing pressure to either, both sides of land 50, Fig. 3a, thus closing the main valve 52, or one side, Fig. 3b, opening the main valve to drain 26, thereby controlling the accumulator pressure. The pilot valve and piston may be in one piece (74) Fig. 4 (not shown) and the main valve may be a poppett or spool. A check valve 36, 38 inhibits loss of accumulator pressure if the supply falls below that of the accumulator.
GB3141174A
1973-08-08
1974-07-16
Hydraulic pressure control valve
Expired
GB1447836A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP48088513A
JPS5037032A
(en)
1973-08-08
1973-08-08
Publications (1)
Publication Number
Publication Date
GB1447836A
true
GB1447836A
(en)
1976-09-02
Family
ID=13944895
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3141174A
Expired
GB1447836A
(en)
1973-08-08
1974-07-16
Hydraulic pressure control valve
Country Status (4)
Country
Link
US
(1)
US3973581A
(en)
JP
(1)
JPS5037032A
(en)
DE
(1)
DE2436935A1
(en)
GB
(1)
GB1447836A
(en)
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3712716A1
(en)
*
1986-08-01
1988-02-04
Man Nutzfahrzeuge Gmbh
PROCESS FOR REDUCING LOSSES, CHANGING THE SUPPLY CURRENT OF A CONSTANT FEED PUMP AND DEVICE FOR PERFORMING THE PROCESS
US6241487B1
(en)
*
1998-11-10
2001-06-05
Warren Rupp, Inc.
Fluid powered diaphragm pump
Family Cites Families (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2316445A
(en)
*
1941-06-27
1943-04-13
Bendix Aviat Corp
Pressure regulator
US2664908A
(en)
*
1950-06-21
1954-01-05
Link Belt Speeder Corp
Unloading valve
US2737966A
(en)
*
1951-10-15
1956-03-13
Siam
Pressure regulator
US2779346A
(en)
*
1954-11-26
1957-01-29
Gurries Mfg Co
Unloading valve
US3042072A
(en)
*
1959-02-18
1962-07-03
Gen Gas Light Co
Diaphragm type valve structure
FR1321494A
(en)
*
1962-02-06
1963-03-22
Improvements made to relief valves for hydraulic installations
JPS4221842Y1
(en)
*
1964-01-24
1967-12-15
JPS5436628B2
(en)
*
1972-06-05
1979-11-10
1973
1973-08-08
JP
JP48088513A
patent/JPS5037032A/ja
active
Pending
1974
1974-07-16
GB
GB3141174A
patent/GB1447836A/en
not_active
Expired
1974-07-31
DE
DE2436935A
patent/DE2436935A1/en
not_active
Withdrawn
1974-08-02
US
US05/494,358
patent/US3973581A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
DE2436935A1
(en)
1975-03-13
US3973581A
(en)
1976-08-10
JPS5037032A
(en)
1975-04-07
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Legal Events
Date
Code
Title
Description
1977-01-13
PS
Patent sealed [section 19, patents act 1949]
1979-12-19
746
Register noted ‘licences of right’ (sect. 46/1977)
1987-03-11
PCNP
Patent ceased through non-payment of renewal fee
