GB668029A - Improvements in or relating to hydraulic pressure control valves - Google Patents
Improvements in or relating to hydraulic pressure control valvesInfo
- Publication number
- GB668029A GB668029A GB11920/50A GB1192050A GB668029A GB 668029 A GB668029 A GB 668029A GB 11920/50 A GB11920/50 A GB 11920/50A GB 1192050 A GB1192050 A GB 1192050A GB 668029 A GB668029 A GB 668029A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- pressure
- spring
- plunger
- piston
- 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
- 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
- B60T13/16—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 pumps directly, i.e. without interposition of accumulators or reservoirs
- B60T13/18—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 pumps directly, i.e. without interposition of accumulators or reservoirs with control of pump output delivery, e.g. by distributor valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
668,029. Fluid-actuated valves. INTERNATIONAL HARVESTER CO. May 12, 1950 [May 26, 1949], No. 11920/50. Class 135 [Also in Group XXXIV] A control valve for hydraulic devices, e.g. brakes, comprises a plunger 59, slidable in a sleeve 29 provided in a body 27, to control the connection of a port 45 to either a pressure inlet port 44 or an exhaust port 46, the port 45 leading to a brake 14. The plunger is moved to connect ports 44 and 45 by a lever 85 through a sleeve 79, a spring 77, a. member 78 and a piston 73. The pressure applied to the port 45 moves the piston 73 against the spring 77, to a point where the pressure of the fluid equalises the spring pressure, and also acts on a wall 66 in the plunger. The wall is provided with an orifice 69 through which fluid leaks, permitting a spring 68 to move the plunger gradually to follow the piston 73 and close the inlet port 44. Increased pressure at the port 45 is obtained by moving the lever 85 to increase the force of the spring 77. On release of the lever, the plunger moves to connect the ports 45, 46 thereby relieving the pressure at the port 45 and releasing the brakes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US668029XA | 1949-05-26 | 1949-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB668029A true GB668029A (en) | 1952-03-12 |
Family
ID=22071809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11920/50A Expired GB668029A (en) | 1949-05-26 | 1950-05-12 | Improvements in or relating to hydraulic pressure control valves |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1018495A (en) |
| GB (1) | GB668029A (en) |
-
1950
- 1950-05-12 GB GB11920/50A patent/GB668029A/en not_active Expired
- 1950-05-13 FR FR1018495D patent/FR1018495A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1018495A (en) | 1953-01-08 |
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