GB1440794A - Hydraulic unloading valve - Google Patents
Hydraulic unloading valveInfo
- Publication number
- GB1440794A GB1440794A GB4701373A GB4701373A GB1440794A GB 1440794 A GB1440794 A GB 1440794A GB 4701373 A GB4701373 A GB 4701373A GB 4701373 A GB4701373 A GB 4701373A GB 1440794 A GB1440794 A GB 1440794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spool
- spring
- oct
- bore
- open position
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/26—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members with fluid passages in the valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
1440794 Valves MASSEY-FERGUSON SERVICES NV 9 Oct 1973 [10 Oct 1972] 47013/73 Heading F2V A valve for unloading a high-pressure pump on a vehicle during starting has a spool 20 biased to an open position by a spring 34 and closed by the fluid pressure differential thereacross when the flow therethrough reaches a predetermined value. Flow between the inlet 16 and the outlet 18 is via holes 48 and bore 46 and is cut-off when land 54 sealingly engages in the end of bore 28. The end of the spool abuts a washer 38 to compress a spring 36 in closed position, which spring overcomes the initial inertia on movement to open position. The fluid force on the spool is substantially independent of viscosity for a given flow rate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29641572A | 1972-10-10 | 1972-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1440794A true GB1440794A (en) | 1976-06-23 |
Family
ID=23141911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4701373A Expired GB1440794A (en) | 1972-10-10 | 1973-10-09 | Hydraulic unloading valve |
Country Status (7)
Country | Link |
---|---|
AR (1) | AR198252A1 (en) |
CA (1) | CA1013232A (en) |
DE (1) | DE2350920A1 (en) |
ES (1) | ES419507A1 (en) |
FR (1) | FR2202250B1 (en) |
GB (1) | GB1440794A (en) |
IT (1) | IT993950B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107202186A (en) * | 2017-06-15 | 2017-09-26 | 中国人民解放军61489部队 | Opening pressure and the adjustable heavy caliber high speed inertia pressure relief valve of amount of opening and method |
CN108644452A (en) * | 2018-07-20 | 2018-10-12 | 潍坊力创电子科技有限公司 | Leading gas injection valve |
CN110761994A (en) * | 2019-12-03 | 2020-02-07 | 宁波捷尔天电气有限公司 | Automatic antiseized even plunger electromagnetic pump of push type |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4249558A (en) * | 1978-11-09 | 1981-02-10 | Deere & Company | Bypass valve |
-
1973
- 1973-09-25 CA CA181,872A patent/CA1013232A/en not_active Expired
- 1973-09-28 IT IT2956873A patent/IT993950B/en active
- 1973-10-09 GB GB4701373A patent/GB1440794A/en not_active Expired
- 1973-10-09 ES ES419507A patent/ES419507A1/en not_active Expired
- 1973-10-09 FR FR7335993A patent/FR2202250B1/fr not_active Expired
- 1973-10-09 AR AR25044073A patent/AR198252A1/en active
- 1973-10-10 DE DE19732350920 patent/DE2350920A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107202186A (en) * | 2017-06-15 | 2017-09-26 | 中国人民解放军61489部队 | Opening pressure and the adjustable heavy caliber high speed inertia pressure relief valve of amount of opening and method |
CN107202186B (en) * | 2017-06-15 | 2023-03-03 | 中国人民解放军61489部队 | Large-caliber high-speed inertial pressure relief valve with adjustable opening pressure and opening amount and method |
CN108644452A (en) * | 2018-07-20 | 2018-10-12 | 潍坊力创电子科技有限公司 | Leading gas injection valve |
CN110761994A (en) * | 2019-12-03 | 2020-02-07 | 宁波捷尔天电气有限公司 | Automatic antiseized even plunger electromagnetic pump of push type |
Also Published As
Publication number | Publication date |
---|---|
CA1013232A (en) | 1977-07-05 |
ES419507A1 (en) | 1976-04-01 |
FR2202250A1 (en) | 1974-05-03 |
FR2202250B1 (en) | 1980-08-22 |
DE2350920A1 (en) | 1974-04-18 |
AR198252A1 (en) | 1974-06-07 |
IT993950B (en) | 1975-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |