GB816671A - Fluid control valve units - Google Patents
Fluid control valve unitsInfo
- Publication number
- GB816671A GB816671A GB3450654A GB3450654A GB816671A GB 816671 A GB816671 A GB 816671A GB 3450654 A GB3450654 A GB 3450654A GB 3450654 A GB3450654 A GB 3450654A GB 816671 A GB816671 A GB 816671A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve member
- valve
- chamber
- fluid
- spring
- 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
- 239000012530 fluid Substances 0.000 title abstract 5
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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Safety Valves (AREA)
Abstract
816,671. Fluid-actuated valves. HOBOURNEATON MANUFACTURING CO. Ltd. Oct. 13, 1955 [Nov. 29, 1954], No. 34506/54. Class 135. A fluid control unit adapted to be connected to the suction and delivery passages of a pump and also to a closed loop circuit comprises a valve body or casing 1 having a valve chamber 2 in which are arranged two telescopically related hollow valve members 9, 10A, the outer one, 9, functioning as a flow control member and opening against a spring 14 to by-pass fluid from the pump delivery back to the pump suction through an annular passage 5 when the pressure drop across a flow control orifice exceeds a predetermined value, and the other hollow valve l0A functioning as a relief valve and opening against a spring 15 to pass fluid out through ports 13 and the chamber 5 when the pressure in the closed loop circuit exceeds a predetermined value. The pump delivery is connected through the threaded boss 4 to an annular chamber 3 and the closed loop circuit is connected to the chamber 2 through a union 8. As shown in Fig. 3, the flow control orifice is formed as a restricted orifice 21 in the valve member 10A. It may, however, be formed as a number of small radial holes in the valve member 9 in place of the ports 22. The outer or left-hand end of the valve member 10A is of slightly larger diameter than the inner end. The valve member 10A abuts a spring-retaining ring 16 when closed. The collar 19 on the valve member 9 and the annular chamber 20 form a dashpot to which the fluid has a restricted access. In another arrangement the valve member 10A has ends of appreciably different diameter, the loading spring 15 acting on the smaller area and also on a flanged ring which maintains a fixed throttling rod in place. The rod has a conical end which co-operates with one end of the passage through the valve member 10A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1955H0020201 DE1756100U (en) | 1954-11-29 | 1955-11-17 | VALVE UNIT. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB816671A true GB816671A (en) | 1959-07-15 |
Family
ID=1743950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3450654A Expired GB816671A (en) | 1954-11-29 | 1954-11-29 | Fluid control valve units |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB816671A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429135A1 (en) * | 1978-06-23 | 1980-01-18 | Bendix Corp | PRESSURE RELIEF FOR HYDRAULIC BRAKE SUPPORT SERVO-MOTOR |
-
1954
- 1954-11-29 GB GB3450654A patent/GB816671A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2429135A1 (en) * | 1978-06-23 | 1980-01-18 | Bendix Corp | PRESSURE RELIEF FOR HYDRAULIC BRAKE SUPPORT SERVO-MOTOR |
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