FR2279005A1 - Progressive gas flow rate control valve - has orifice connection between chambers and sprung outlet control piston - Google Patents
Progressive gas flow rate control valve - has orifice connection between chambers and sprung outlet control pistonInfo
- Publication number
- FR2279005A1 FR2279005A1 FR7409179A FR7409179A FR2279005A1 FR 2279005 A1 FR2279005 A1 FR 2279005A1 FR 7409179 A FR7409179 A FR 7409179A FR 7409179 A FR7409179 A FR 7409179A FR 2279005 A1 FR2279005 A1 FR 2279005A1
- Authority
- FR
- France
- Prior art keywords
- flow rate
- sprung
- chambers
- chamber
- gas flow
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/06—Adaptations for driving, or combinations with, hand-held tools or the like control thereof
- F01D15/062—Controlling means specially adapted therefor
-
- 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
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The flow control is achieved by sensing the pressure difference between supply and discharge and using it to control the position of the discharge valve. The valve body (2) is connected (1) to an air motor discharge port, the air flows into a chamber (2a) and thence via a small orifice (3) into another chamber (4). One end of the second chamber is closed by a spring (8) loaded piston (7) and the other carries an adjustable end stop (10) with a passage (5) to atmosphere. When pressure in the chamber (2a) rises (high motor speed) the piston moves progressively against the spring pressure to seal off the orifice (3) and reduce the flow rate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7409179A FR2279005A1 (en) | 1974-03-19 | 1974-03-19 | Progressive gas flow rate control valve - has orifice connection between chambers and sprung outlet control piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7409179A FR2279005A1 (en) | 1974-03-19 | 1974-03-19 | Progressive gas flow rate control valve - has orifice connection between chambers and sprung outlet control piston |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2279005A1 true FR2279005A1 (en) | 1976-02-13 |
FR2279005B1 FR2279005B1 (en) | 1976-12-17 |
Family
ID=9136498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7409179A Granted FR2279005A1 (en) | 1974-03-19 | 1974-03-19 | Progressive gas flow rate control valve - has orifice connection between chambers and sprung outlet control piston |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2279005A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5257537A (en) * | 1992-10-26 | 1993-11-02 | Schlumberger Industries, Inc. | Self actuating throttle valve |
-
1974
- 1974-03-19 FR FR7409179A patent/FR2279005A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5257537A (en) * | 1992-10-26 | 1993-11-02 | Schlumberger Industries, Inc. | Self actuating throttle valve |
Also Published As
Publication number | Publication date |
---|---|
FR2279005B1 (en) | 1976-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |