GB1476634A - Control valves for hydraulic rams - Google Patents
Control valves for hydraulic ramsInfo
- Publication number
- GB1476634A GB1476634A GB5058673A GB5058673A GB1476634A GB 1476634 A GB1476634 A GB 1476634A GB 5058673 A GB5058673 A GB 5058673A GB 5058673 A GB5058673 A GB 5058673A GB 1476634 A GB1476634 A GB 1476634A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valves
- valve
- pump
- reservoir
- check
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
- F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
Abstract
1476634 Hydraulic jacks CLAYTON DEWANDRE CO Ltd 7 Jan 1975 [31 Oct 1973] 50586/73 Heading FID [Also in Division F2] Means for controlling a double-acting hydraulic ram comprises two valves V1, V2 each having a check-valve 8 controlling an inlet 6 connected to a source of fluid-pressure e.g. a pump and a valve 9 controlling flow to a reservoir and opened by a plunger 11. A common loading spring 10 acts on the two valves and a distance piece 12 may be provided to transmit a thrust from one valve to the other. The two plungers are mechanically coupled so that only one of the valves 9 may be opened at a time. In an alternative embodiment, Fig. 2 (not shown) the valves may take the form of hollow sliding pistons with frusto-conical seat-engaging surfaces. Figs. 4 and 5 illustrate a combined pump, valve and reservoirs for a jack. The outlet 27 from a pump chamber 22 is connected to the two inlet check-valves 8, passageways 4 are connected to the double-acting ram and the chamber 28 is connected to a reservoir 21. Valves 9 are controlled by a common face cam 29 operating through spring-loaded ball followers 30. The supply from the reservoir to the pump is controlled by a ball check-valve 23 and a pressure relief valve 33 relieves excessive pump pressure to the reservoir.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5058673A GB1476634A (en) | 1973-10-31 | 1973-10-31 | Control valves for hydraulic rams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5058673A GB1476634A (en) | 1973-10-31 | 1973-10-31 | Control valves for hydraulic rams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1476634A true GB1476634A (en) | 1977-06-16 |
Family
ID=10456509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5058673A Expired GB1476634A (en) | 1973-10-31 | 1973-10-31 | Control valves for hydraulic rams |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1476634A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2129166A (en) * | 1979-10-24 | 1984-05-10 | Secr Defence | Fluid-powered actuators |
-
1973
- 1973-10-31 GB GB5058673A patent/GB1476634A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2129166A (en) * | 1979-10-24 | 1984-05-10 | Secr Defence | Fluid-powered actuators |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |