GB668388A - Improvements in or relating to pressure regulating valves - Google Patents
Improvements in or relating to pressure regulating valvesInfo
- Publication number
- GB668388A GB668388A GB6384/49A GB638449A GB668388A GB 668388 A GB668388 A GB 668388A GB 6384/49 A GB6384/49 A GB 6384/49A GB 638449 A GB638449 A GB 638449A GB 668388 A GB668388 A GB 668388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- spring
- piston
- plunger
- inlet valve
- 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
-
- 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
- B60T15/04—Driver's valves
- B60T15/043—Driver's valves controlling service pressure brakes
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/141—Systems with distributor valve
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
- G05D16/101—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the controller being arranged as a multiple-way valve
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
- G05D16/109—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger with two or more pistons acting as a single pressure controller that move together over range of motion during normal operations
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
668,388. Fluid-actuated valves. BENDIX AVIATION CORPORATION, and DUNCAN, W. O. (Bendix Aviation Corporation). March 9, 1949, No. 6384/49. Addition to 611,619. Class 135 [Also in Group XXXIV] In the pressure regulating valve of the parent Specification for the operation of vehicle brakes, the piston 20 associated with the exhaust valve element and subjected to the pressure in the motor port in opposition to the pressure applied by the actuating member is replaced by a two-part piston member comprising a plunger 38 slidable in and resiliently connected to an annular piston member 34 by a spring 44, so that in the low pressure stage of operation of the valve the pressure in the motor port acts on both the piston 34 and the plunger 38 whilst in the high pressure stage the pressure acts on the plunger only. On anticlockwise movement of the operating member 88 a loading spring 66 is compressed to move the' piston 34 and, through the spring 44, the plunger 38 to seat on the exhaust valve 62 to cut communication between the brake cylinder 17 and the reservoir 19. On further anticlockwise movement the inlet valve 28 is unseated to supply the brake cylinder with pressure liquid from the pump 15. With the inlet valve open and the line pressure less than a value determined by the spring 44, both piston and plunger resist this pressure and due to the relatively large area thereof a close control can be kept by the operator. On the line pressure exceeding that of the spring 44 the piston 34 moves to the left into abutment with a shoulder 56 whence the line pressure is then resisted only by the plunger 38 and the force required by the operator to increase the line pressure is not so great as it would otherwise have been when acting over the whole area. When the operator releases the member 88 the line pressure with the assistance of a return spring 82 and the inlet valve spring 30 returns the valves, the piston and plunger to the pistons shown. The spring 44 is. made strong enough to resist low line pressures whilst at the same time being stronger than the force required to open the inlet valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB29408/45A GB611619A (en) | 1944-11-25 | 1945-11-05 | Improvements in or relating to pressure regulating valves |
| GB6384/49A GB668388A (en) | 1949-03-09 | 1949-03-09 | Improvements in or relating to pressure regulating valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6384/49A GB668388A (en) | 1949-03-09 | 1949-03-09 | Improvements in or relating to pressure regulating valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB668388A true GB668388A (en) | 1952-03-19 |
Family
ID=9813524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6384/49A Expired GB668388A (en) | 1944-11-25 | 1949-03-09 | Improvements in or relating to pressure regulating valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB668388A (en) |
-
1949
- 1949-03-09 GB GB6384/49A patent/GB668388A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3082744A (en) | Servomotor control valve | |
| GB1029183A (en) | Variable pressure ratio valve | |
| GB512365A (en) | Improved automatic distributing and regulating device for compressed fluid brake installations for vehicles | |
| GB814502A (en) | Fluid pressure servomotor, particularly for braking systems | |
| GB644231A (en) | Improvements relating to brake cylinders for fluid pressure braking systems | |
| GB1259421A (en) | ||
| GB620407A (en) | Power operated hydraulic pressure device | |
| GB742596A (en) | Improvements in and relating to fluid control valve devices | |
| GB944821A (en) | Vehicle brake system | |
| GB711129A (en) | Improvements in or relating to fluid pressure operated controlling devices | |
| GB555417A (en) | Improvements in or relating to means for controlling brakes on trailer vehicles | |
| GB668388A (en) | Improvements in or relating to pressure regulating valves | |
| GB904816A (en) | Full power brake valve | |
| GB797035A (en) | Combination master cylinder and power valve | |
| GB596494A (en) | Improvements in or relating to hydraulic systems for actuating brakes | |
| GB667736A (en) | Improvements in or relating to the braking of tractor and trailer vehicles | |
| GB927688A (en) | Fluid pressure control valves | |
| GB515440A (en) | Improvements in or relating to servo brake operating mechanism for vehicles | |
| SE7411645L (en) | ||
| ES292093A1 (en) | Servo autodistributor for trailer vehicles equipped with pneumatic brake system | |
| GB811466A (en) | Improvements in or relating to liquid pressure braking systems | |
| GB593479A (en) | Improvements in or relating to fluid pressure regulating valves | |
| GB611619A (en) | Improvements in or relating to pressure regulating valves | |
| GB754091A (en) | Relay valve, particularly for control of fluid pressure brakes | |
| GB563588A (en) | Improvements relating to fluid pressure braking apparatus for vehicles |