GB1299658A - Hydraulic flow-operated shut-off device - Google Patents
Hydraulic flow-operated shut-off deviceInfo
- Publication number
- GB1299658A GB1299658A GB5905570A GB5905570A GB1299658A GB 1299658 A GB1299658 A GB 1299658A GB 5905570 A GB5905570 A GB 5905570A GB 5905570 A GB5905570 A GB 5905570A GB 1299658 A GB1299658 A GB 1299658A
- Authority
- GB
- United Kingdom
- Prior art keywords
- throttle
- valve
- pressures
- piston
- throttles
- 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
Links
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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
-
- 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
Abstract
1299658 Valves BENDIX CORP 11 Dec 1970 [29 Dec 1969] 59055/70 Heading F2V A valve 36 having surfaces exposed to pressures representative of the flows in the supply and delivery conduits of an hydraulic apparatus is moved against a spring 48 towards a position blocking the supply conduit when the difference between the flows, which may be due to rupture of a pipe-line, exceeds a predetermined amount. The pressures are derived from a throttle 74 in the supply conduit 78 and a throttle 96 in the return conduit 86. The pressure upstream of the throttle 74 is communicated through a restriction 66 and a passage 72 to a space 40 within the valve while that upstream of the throttle 96 is communicated to a space 46 through a passage 86 and a restriction 104, the downstream pressures acting directly on spaces 38 and 42 through passages 78 and 97. A second spring-loaded valve 54 is subjected to the pressure drop across the throttle 74 so that it opens to provide additional flow in parallel with the throttles when pressure fluctuations occur. When a single-acting piston is to be supplied, the throttles 66 and 104 reduce the speed of the valve 36 so that the piston reaches the end of its travel before the valve is closed by the difference in flow to the two sides of the piston.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88869269A | 1969-12-29 | 1969-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1299658A true GB1299658A (en) | 1972-12-13 |
Family
ID=25393685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5905570A Expired GB1299658A (en) | 1969-12-29 | 1970-12-11 | Hydraulic flow-operated shut-off device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3587393A (en) |
| JP (1) | JPS544031B1 (en) |
| CA (1) | CA923404A (en) |
| DE (1) | DE2063318C3 (en) |
| FR (1) | FR2073503B1 (en) |
| GB (1) | GB1299658A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685531A (en) * | 1970-10-12 | 1972-08-22 | Bertea Corp | Circuit breaker |
| US4008731A (en) * | 1971-03-08 | 1977-02-22 | I-T-E Imperial Corporation | Counterbalance valve |
| DE2415795C2 (en) * | 1974-04-01 | 1984-06-28 | Fa. Josef Messmann, 4490 Papenburg | Break protection for hydraulic lines |
| NO138346C (en) * | 1974-10-28 | 1978-08-16 | Nordtool Ab | VALVE DEVICE FOR PROTECTION OF PIPELINE SYSTEMS AGAINST ACCIDENTAL PRESSURE REDUCTIONS |
| DE2533164C3 (en) * | 1975-07-24 | 1982-02-11 | International Harvester Company Mbh, 4040 Neuss | Hydraulic control device for a hydraulic system |
| US4282797A (en) * | 1977-02-09 | 1981-08-11 | J. I. Case Company | Protective fluid system |
| US4274328A (en) * | 1977-06-06 | 1981-06-23 | J. I. Case Company | Automatic hydraulic shut-off system |
| US4611620A (en) * | 1981-04-02 | 1986-09-16 | Parker Hannifin Corporation | Hydraulic circuit breaker |
| US4518004A (en) * | 1983-11-21 | 1985-05-21 | Hr Textron Inc. | Multifunction valve |
| US5915282A (en) * | 1995-12-14 | 1999-06-22 | Abbott Laboratories | Fluid handler and method of handling a fluid |
| JP6178587B2 (en) * | 2013-02-28 | 2017-08-09 | 三菱航空機株式会社 | Aircraft actuator device and aircraft |
| US10337631B1 (en) * | 2018-10-17 | 2019-07-02 | Altec Industries, Inc. | System and method for automatic shutoff of a hydraulic fluid flow in the event of a loss in pressure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1490736A (en) * | 1966-06-24 | 1967-08-04 | Improvements to emergency devices for hydraulic circuits | |
| US3502102A (en) * | 1967-07-26 | 1970-03-24 | Bell Aerospace Corp | Flow operated shutoff valve |
-
1969
- 1969-12-29 US US3587393D patent/US3587393A/en not_active Expired - Lifetime
-
1970
- 1970-11-03 CA CA097254A patent/CA923404A/en not_active Expired
- 1970-12-11 GB GB5905570A patent/GB1299658A/en not_active Expired
- 1970-12-22 DE DE2063318A patent/DE2063318C3/en not_active Expired
- 1970-12-23 FR FR7046446A patent/FR2073503B1/fr not_active Expired
- 1970-12-28 JP JP11949070A patent/JPS544031B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2063318C3 (en) | 1979-11-29 |
| US3587393A (en) | 1971-06-28 |
| FR2073503B1 (en) | 1975-06-06 |
| DE2063318A1 (en) | 1971-07-01 |
| JPS544031B1 (en) | 1979-03-01 |
| FR2073503A1 (en) | 1971-10-01 |
| DE2063318B2 (en) | 1979-04-12 |
| CA923404A (en) | 1973-03-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |