GB836870A - Fluid pressure control device - Google Patents
Fluid pressure control deviceInfo
- Publication number
- GB836870A GB836870A GB26201/58A GB2620158A GB836870A GB 836870 A GB836870 A GB 836870A GB 26201/58 A GB26201/58 A GB 26201/58A GB 2620158 A GB2620158 A GB 2620158A GB 836870 A GB836870 A GB 836870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- piston
- valve
- communication
- movable member
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Safety Valves (AREA)
Abstract
836,870. Valves. BENDIX-WESTING- HOUSE AUTOMOTIVE AIR BRAKE CO. Aug. 14, 1958 [Oct. 17, 1957], No. 26201/58. Class 135. A fluid pressure control device comprises a body 10 with inlet, outlet and vent ports 12, 14, 44, and a movable member 20 formed with first and second motive surfaces, and operable in conjunction with a valve 46 to open or close a port 38 in the movable member and an exhaust port 40 at the lower end of a fixed axial member 39, to control the connection of outlet port 14 with either inlet port 12 or vent port 44. The device may be applied to a tractor braking system such as described in Specification 683,350, port 12 being in communication with a pressure fluid reservoir and port 14 with the tractor protection valve. As shown the movable member consists of a stepped piston 20, 22 of which the lower end surface forms the first motive surface and the annular surface 30 the second motive surface. In the first position shown a loading spring 35 holds valve 46 and piston 20 in contact to maintain poit 38 closed, whereby outlet 14 communicates via a control chamber 18 containing the enlarged piston portion 22, a passage 41 and orifice 40, with vent port 44. Upon admitting pressure fluid from inlet 12, valve 46 and piston 20 rise together until valve 46 engages the lower end of member 39 and closes exhaust orifice 40, whereupon continued movement of the piston opens port 38 enabling the piessure fluid to act upon the annular surface 30, resulting in a snap action upward movement of the piston into its second position in contact with a cap member 32, and also placing ports 12, 14 in communication. Upon reduction of the supply pressure the operation is reversed, closure of port 38 being followed by opening of orifice 40, so placing the fluid acting on surface 30 into communication with vent port 44 and enabling spring 35 to snap piston 20 downwards, thereby cutting off inlet port 12 and restoring communication between ports 12, 44. In an alternative arrangement, Fig. 2 (not shown), the motive surfaces are provided by diaphragms connected to the movable member.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US836870XA | 1957-10-17 | 1957-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB836870A true GB836870A (en) | 1960-06-09 |
Family
ID=22180014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26201/58A Expired GB836870A (en) | 1957-10-17 | 1958-08-14 | Fluid pressure control device |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1211045A (en) |
| GB (1) | GB836870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886152A (en) * | 2018-06-13 | 2020-11-03 | 沃尔沃卡车集团 | Flow regulating device, fuel management system comprising such a device and motor vehicle comprising such a system |
-
1958
- 1958-08-14 GB GB26201/58A patent/GB836870A/en not_active Expired
- 1958-09-30 FR FR1211045D patent/FR1211045A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111886152A (en) * | 2018-06-13 | 2020-11-03 | 沃尔沃卡车集团 | Flow regulating device, fuel management system comprising such a device and motor vehicle comprising such a system |
| CN111886152B (en) * | 2018-06-13 | 2024-03-01 | 沃尔沃卡车集团 | Flow regulating device, fuel management system comprising such a device and motor vehicle comprising such a system |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1211045A (en) | 1960-03-11 |
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