GB621498A - Improvements relating to pressure release or exhaust valves - Google Patents
Improvements relating to pressure release or exhaust valvesInfo
- Publication number
- GB621498A GB621498A GB387446A GB387446A GB621498A GB 621498 A GB621498 A GB 621498A GB 387446 A GB387446 A GB 387446A GB 387446 A GB387446 A GB 387446A GB 621498 A GB621498 A GB 621498A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exhaust
- press
- port
- passage
- ports
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
621,498. Hydraulic presses; multiple-way valves. PRECISION DEVELOPMENTS CO., Ltd., BOX, F. J., and OLAH, G. Feb. 7, 1946, No. 3874. [Classes 69 (ii) and 135] Pressure liquid is exhausted from a hydraulic press &c. in two stages, first at a slow rate, during which the elastic strain in the press cylinder is relieved, and then rapidly. Fig. 2 shows a valve in which the flow from a press port 6 to an exhaust port 5 is controlled by a hand-operated piston 3 having a groove 12 connected by a radial hole 15 to a bore 13 communicating with a chamber 14 connected by a restricted passage 7, 8 to the exhaust port. In use, the valve is pushed inwards so that the groove overlaps the port 6 and liquid from the press flows into the chamber. and thence through the passage 7, 8 to the exhaust. The back pressure initially developed in the chamber arrests the movement of the piston. However, continued exhaust of liquid through the passage results in a fall in the back pressure until the inward stroke of the piston can be completed, thus permitting direct and full flow between the ports 6 and 5. Fig. 6 shows a modification in which the valve is provided with a pressure liquid supply port 18 in addition to the exhaust and press ports 5, 6 respectively. In the position shown, the ports 6, 18 are both in direct communication with the exhaust port 5 through the bore 17 and the passage 21 respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB387446A GB621498A (en) | 1946-02-07 | 1946-02-07 | Improvements relating to pressure release or exhaust valves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB387446A GB621498A (en) | 1946-02-07 | 1946-02-07 | Improvements relating to pressure release or exhaust valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB621498A true GB621498A (en) | 1949-04-11 |
Family
ID=9766505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB387446A Expired GB621498A (en) | 1946-02-07 | 1946-02-07 | Improvements relating to pressure release or exhaust valves |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB621498A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2484565A1 (en) * | 1980-06-16 | 1981-12-18 | Heilmeier & Weinlein | HYDRAULIC CONTROL SYSTEM, ESPECIALLY OF HIGH PRESSURE, EQUIPPED FOR EXAMPLE WITH A HYDRAULIC CYLINDER |
-
1946
- 1946-02-07 GB GB387446A patent/GB621498A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2484565A1 (en) * | 1980-06-16 | 1981-12-18 | Heilmeier & Weinlein | HYDRAULIC CONTROL SYSTEM, ESPECIALLY OF HIGH PRESSURE, EQUIPPED FOR EXAMPLE WITH A HYDRAULIC CYLINDER |
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