GB709813A - Inlet control means for air or other gas compression or vacuum pumps - Google Patents
Inlet control means for air or other gas compression or vacuum pumpsInfo
- Publication number
- GB709813A GB709813A GB1243351A GB1243351A GB709813A GB 709813 A GB709813 A GB 709813A GB 1243351 A GB1243351 A GB 1243351A GB 1243351 A GB1243351 A GB 1243351A GB 709813 A GB709813 A GB 709813A
- Authority
- GB
- United Kingdom
- Prior art keywords
- passage
- piston
- valve
- pressure
- oil
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
709,813. Fluid-pressure servomotor-control systems. HYDROVANE COMPRESSOR CO., Ltd. May 8, 1952 [May 28, 1951], No. 12433/51. Class 135 Means for controlling the admission of air or other gas to an air or other gas compression or vacuum pump, comprising the combination of a spring-loaded gas-inflow controlling member operable by a variable liquid pressure, and a spring-loaded valve operable by the said pressure for controlling the action of the said member. As shown, the air inlet passage m, Fig. 1, to the pump is supplied from passage k and controlled by the inflow controlling member formed as a piston valve c, inside which is a check valve e seating against the air supply passage k. The pressure of the sealing oil of the pump is applied through port n and acts on a piston i which, at a predetermined oil pressure moves against spring j to open passage p whereby the oil acts on the piston valve c to move it to close the passage m against a spring d. When the pump delivery pressure falls, the oil pressure also falls, and the piston i returns to its initial position, thus permitting oil in passage p to flow through a passage o into the pump. In another arrangement, a valve e', Fig. 3, controls communication between passage k and inlet m and has a stem r slidable in an inflow controlling member formed as a piston s loaded by a spring t. Thus, an increase in pump delivery pressure moves piston i to open passage p whereby oil moves piston s to engage shoulder x on stem r and move valve e' towards closed position. In yet another arrangement, the inlet control valve is a lift valve actuated by a single-acting piston.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1243351A GB709813A (en) | 1951-05-28 | 1951-05-28 | Inlet control means for air or other gas compression or vacuum pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1243351A GB709813A (en) | 1951-05-28 | 1951-05-28 | Inlet control means for air or other gas compression or vacuum pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB709813A true GB709813A (en) | 1954-06-02 |
Family
ID=10004513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1243351A Expired GB709813A (en) | 1951-05-28 | 1951-05-28 | Inlet control means for air or other gas compression or vacuum pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB709813A (en) |
-
1951
- 1951-05-28 GB GB1243351A patent/GB709813A/en not_active Expired
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