GB1500878A – Hydraulic controls
– Google Patents
GB1500878A – Hydraulic controls
– Google Patents
Hydraulic controls
Info
Publication number
GB1500878A
GB1500878A
GB28637/76A
GB2863776A
GB1500878A
GB 1500878 A
GB1500878 A
GB 1500878A
GB 28637/76 A
GB28637/76 A
GB 28637/76A
GB 2863776 A
GB2863776 A
GB 2863776A
GB 1500878 A
GB1500878 A
GB 1500878A
Authority
GB
United Kingdom
Prior art keywords
line
valve
reservoir
fluid
pressure
Prior art date
1975-07-24
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
GB28637/76A
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.)
Navistar Inc
Original Assignee
International Harverster Corp
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.)
1975-07-24
Filing date
1976-07-09
Publication date
1978-02-15
1976-07-09
Application filed by International Harverster Corp
filed
Critical
International Harverster Corp
1978-02-15
Publication of GB1500878A
publication
Critical
patent/GB1500878A/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
F15B1/26—Supply reservoir or sump assemblies
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 – F04B47/00
F04B49/02—Stopping, starting, unloading or idling control
F04B49/025—Stopping, starting, unloading or idling control by means of floats
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
Y10T137/7287—Liquid level responsive or maintaining systems
Y10T137/7297—With second diverse control
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
Y10T137/7287—Liquid level responsive or maintaining systems
Y10T137/7313—Control of outflow from tank
Y10T137/7323—By float
Y10T137/7326—Low level safety cut-off
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
Y10T137/7287—Liquid level responsive or maintaining systems
Y10T137/7358—By float controlled valve
Y10T137/7368—Servo relay operation of control
Y10T137/7371—Fluid pressure
Abstract
1500878 Hydraulic control circuits INTERNATIONAL HARVESTER CO 9 July 1976 [24 July 1975] 28637/76 Heading F1P In the circuit shown, Fig. 1, which includes a pressure relief valve 5, a valve 17 is provided, operated by a float 19 in the reservoir, which diverts fluid in the output line to the input line when the level in the reservoir falls below a predetermined level. In a normal operation, a portion of the fluid in line 4 is directed to a control line 7 and a throttle 8 to establish a pressure which holds the valve 5 in the position shown in Fig. 1 against an opening 6. If a leak occurs in the line 9, the level in the reservoir drops and the float 19 opens the valve 17. This allows fluid in the control line 16 to escape into the reservoir. Simultaneously pressure in the control line drops and the spool of valve 5 moves to the right. This causes valve 13 to divert fluid from line 4 through line 14 to the intake line 2. This prevents further losses and ensures the pump does not run dry. The valve 17, Fig. 2, may also be opened by high-pressure peaks acting on a face 33 through a line 25. Fig. 3 (not shown), illustrates an alternative construction of’the valve 5.
GB28637/76A
1975-07-24
1976-07-09
Hydraulic controls
Expired
GB1500878A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2533164A
DE2533164C3
(en)
1975-07-24
1975-07-24
Hydraulic control device for a hydraulic system
Publications (1)
Publication Number
Publication Date
GB1500878A
true
GB1500878A
(en)
1978-02-15
Family
ID=5952391
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB28637/76A
Expired
GB1500878A
(en)
1975-07-24
1976-07-09
Hydraulic controls
Country Status (8)
Country
Link
US
(1)
US4119016A
(en)
JP
(1)
JPS5215968A
(en)
BE
(1)
BE844489A
(en)
CA
(1)
CA1053121A
(en)
DE
(1)
DE2533164C3
(en)
FR
(1)
FR2319038A1
(en)
GB
(1)
GB1500878A
(en)
IT
(1)
IT1066587B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4250286A
(en)
1979-09-28
1981-02-10
The Dow Chemical Company
Ultra high efficiency catalyst for polymerizing olefins
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4270566A
(en)
*
1979-12-12
1981-06-02
The United States Of America As Represented By The Secretary Of The Navy
Self-restricting shutoff valve
JPS5963062A
(en)
*
1982-10-01
1984-04-10
Matsushita Electric Ind Co Ltd
Off-track amount measuring method in magnetic disk device
US5156177A
(en)
*
1990-10-24
1992-10-20
Woodward Governor Company
Flow loading unloader valve
JP3153118B2
(en)
*
1996-02-01
2001-04-03
新キャタピラー三菱株式会社
Hydraulic circuit of hydraulic work machine
DE20311033U1
(en)
*
2003-07-17
2004-11-25
Cooper Cameron Corp., Houston
pumping device
US6663349B1
(en)
2001-03-02
2003-12-16
Reliance Electric Technologies, Llc
System and method for controlling pump cavitation and blockage
US6655922B1
(en)
2001-08-10
2003-12-02
Rockwell Automation Technologies, Inc.
System and method for detecting and diagnosing pump cavitation
GB2424041A
(en)
*
2005-03-11
2006-09-13
Automotive Motion Tech Ltd
Hydraulic system
EP2411618B1
(en)
2009-03-27
2013-08-14
Cameron International Corporation
Dc powered subsea inverter
US8731727B2
(en)
*
2009-05-29
2014-05-20
Valmet Technologies, Inc.
Method for controlling a digital hydraulic controller
US8607559B2
(en)
*
2009-12-29
2013-12-17
Eaton Corporation
Fluid bypass system
US11773701B1
(en)
*
2018-03-23
2023-10-03
KHOLLE Magnolia 2015, LLC
Gas pump system
Family Cites Families (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NL19328C
(en)
*
1900-01-01
US701548A
(en)
*
1901-12-18
1902-06-03
Charles B Day
Flushing apparatus.
US993628A
(en)
*
1910-06-04
1911-05-30
Orbert E Williams
Feed-water regulator.
US2061608A
(en)
*
1929-12-18
1936-11-24
Reconstruction Finance Corp
Liquid supply system
US2317091A
(en)
*
1940-08-02
1943-04-20
Nash Engineering Co
Pump controlling mechanism
FR1186504A
(en)
*
1956-11-16
1959-08-26
Bosch Gmbh Robert
Oil supply device for burner nozzle
US2942610A
(en)
*
1957-06-17
1960-06-28
United Aircraft Prod
Tank for liquid circulating system of vehicles
CH378164A
(en)
*
1959-12-21
1964-05-31
Prvni Brnenska Strojirna
Hydraulic level regulator on pump systems
DE1265518B
(en)
*
1962-10-31
1968-04-04
Ross Operating Valve Co
Pressure medium operated control valve
US3335746A
(en)
*
1964-08-12
1967-08-15
Parker Hannifin Corp
Fluid pressure control device
US3292500A
(en)
*
1965-09-17
1966-12-20
Coast Elevator Company
Hydraulic elevator
US3587393A
(en)
*
1969-12-29
1971-06-28
Bendix Corp
Hydraulic circuit breaker
US3723025A
(en)
*
1970-10-23
1973-03-27
Abex Corp
Variable bypass for fluid power transfer systems
1975
1975-07-24
DE
DE2533164A
patent/DE2533164C3/en
not_active
Expired
1976
1976-07-01
US
US05/701,475
patent/US4119016A/en
not_active
Expired – Lifetime
1976-07-05
CA
CA256,242A
patent/CA1053121A/en
not_active
Expired
1976-07-09
GB
GB28637/76A
patent/GB1500878A/en
not_active
Expired
1976-07-21
IT
IT50543/76A
patent/IT1066587B/en
active
1976-07-23
BE
BE169213A
patent/BE844489A/en
not_active
IP Right Cessation
1976-07-23
FR
FR7622616A
patent/FR2319038A1/en
active
Granted
1976-07-24
JP
JP51088607A
patent/JPS5215968A/en
active
Pending
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4250286A
(en)
1979-09-28
1981-02-10
The Dow Chemical Company
Ultra high efficiency catalyst for polymerizing olefins
Also Published As
Publication number
Publication date
JPS5215968A
(en)
1977-02-05
US4119016A
(en)
1978-10-10
CA1053121A
(en)
1979-04-24
BE844489A
(en)
1976-11-16
DE2533164C3
(en)
1982-02-11
FR2319038B1
(en)
1981-12-18
IT1066587B
(en)
1985-03-12
DE2533164B2
(en)
1981-06-19
FR2319038A1
(en)
1977-02-18
DE2533164A1
(en)
1977-02-03
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Legal Events
Date
Code
Title
Description
1978-06-28
PS
Patent sealed [section 19, patents act 1949]
1985-03-06
PCNP
Patent ceased through non-payment of renewal fee
