GB495422A - Improvements relating to hydraulic control valves - Google Patents
Improvements relating to hydraulic control valvesInfo
- Publication number
- GB495422A GB495422A GB13804/37A GB1380437A GB495422A GB 495422 A GB495422 A GB 495422A GB 13804/37 A GB13804/37 A GB 13804/37A GB 1380437 A GB1380437 A GB 1380437A GB 495422 A GB495422 A GB 495422A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- exhaust
- ports
- hydraulic control
- feed
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Earth Drilling (AREA)
Abstract
495,422. Hydraulic control valves. SULLIVAN MACHINERY CO. May 18, 1937, No. 13804. Convention date, May 15, 1936. [Classes 69 (ii) and 135] A hydraulic control valve for controlling the flow of liquid from a pump and reservoir circuit 21, 22 to the power cylinders 15 of a drill feeding mechanism 14, 12 in which different rates of feed are required for forward and retraction operations comprises a hollow piston member 46 in a casing 26 with a pressure fluid supply inlet 37, an exhaust outlet 42, and connections 40, 41 for pipes 20, 19 leading to the opposite ends of the cylinders 15 respectively. The valve piston 46 is provided with ports 57, 58 for controlling the exhaust from either of ports 29a or 30a at the connections 40, 41 respectively according to whether it is moved to the left or right from its neutral position shown, and annular recesses 51, 52 for the passage of the pressure fluid to the other port. Rotation of the piston 46 will increase or decrease the communication between the ports 57, 58 and 29a or 30a to regulate the exhaust of the pressure liquid to enable the rate of the feeding operation to be adjusted. In the neutral position of the valve, as shown in Fig. 2, the inlet 37 and exhaust 42 are in communication so that the pump 21 is relieved of load, and the fluid in both ends of the cylinders 15 is entrapped so that the pistons 17 are held positively against movement. Both the rotary and sliding movements of the valve 46 are effected by a single control handle 64 which is pivoted at 63 to the valve spindle and at 65 to a link 66 mounted on a rotatable ring 69 on the valve casing. The ring 69 has a lug 77 which cooperates with a pin (not shown) on an adjustable stop ring 72 which can be adjusted to enable a certain condition of feed, for example, minimum feed, to be repeated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US495422XA | 1936-05-15 | 1936-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB495422A true GB495422A (en) | 1938-11-14 |
Family
ID=21960366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13804/37A Expired GB495422A (en) | 1936-05-15 | 1937-05-18 | Improvements relating to hydraulic control valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB495422A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2543652A (en) * | 1945-09-12 | 1951-02-27 | Bell Aircraft Corp | Emergency by-pass system |
US2576540A (en) * | 1948-05-18 | 1951-11-27 | Rialto Corp | Pressure regulator |
US2598630A (en) * | 1945-02-27 | 1952-05-27 | Glen W Winberg | Back-pressure valve |
US3429341A (en) * | 1965-05-07 | 1969-02-25 | Hoerbiger Ventilwerke Ag | Control slide valve |
-
1937
- 1937-05-18 GB GB13804/37A patent/GB495422A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2598630A (en) * | 1945-02-27 | 1952-05-27 | Glen W Winberg | Back-pressure valve |
US2543652A (en) * | 1945-09-12 | 1951-02-27 | Bell Aircraft Corp | Emergency by-pass system |
US2576540A (en) * | 1948-05-18 | 1951-11-27 | Rialto Corp | Pressure regulator |
US3429341A (en) * | 1965-05-07 | 1969-02-25 | Hoerbiger Ventilwerke Ag | Control slide valve |
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