GB657389A - Self loading hydraulic pressure accumulators - Google Patents
Self loading hydraulic pressure accumulatorsInfo
- Publication number
- GB657389A GB657389A GB4700/49A GB470049A GB657389A GB 657389 A GB657389 A GB 657389A GB 4700/49 A GB4700/49 A GB 4700/49A GB 470049 A GB470049 A GB 470049A GB 657389 A GB657389 A GB 657389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bore
- pump
- space
- 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
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
657,389. Air compressors. NEW YORK AIR BRAKE CO. Feb. 21, 1949, No. 4700. Convention date, March 8, 1948. [Class 8(i)] [Also in Group XXIX] A gas-cushion accumulator 27 is provided in a hydraulic pump 3 and motor 36 circuit, the pressure in which circuit is kept within upper and lower limits by loading and byepassing the pump through an automatic valve 5 (see Group XXIX). A shouldered bore 37 in one end of the accumulator has an air inlet valve 38 and a discharge valve 39 leading into the gascushion space 32, the latter being separated from the liquid space 31 by a piston 29. A plunger 41 is housed in bore 37 and is loaded by a spring 42, located between an outer plunger flange 40 and the bore shoulder, whilst a branch of a pump outlet conduit 4 opens into the enlarged part of the bore so that each time the pump is loaded the plunger makes a displacement stroke to maintain the pressure in space 32 and each time the pump is byepassed, the plunger 41 makes a suction stroke. Any excess fluid from space 32 is vented by relief valve 44 which is connected by conduit 45 to hydraulic exhaust line 34 so, that any liquid in the fluid is returned to the reservoir 1. In a modification, a differential piston is used, the flange 40 being enlarged to act as a piston in the enlarged part of the bore.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US657389XA | 1948-03-08 | 1948-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB657389A true GB657389A (en) | 1951-09-19 |
Family
ID=22064767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4700/49A Expired GB657389A (en) | 1948-03-08 | 1949-02-21 | Self loading hydraulic pressure accumulators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB657389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2436012A1 (en) * | 1978-09-12 | 1980-04-11 | Exi Kuznechn | Drive for hydraulic screw press - has hydropneumatic accumulator and distributor providing alternate connection via non-return valves |
-
1949
- 1949-02-21 GB GB4700/49A patent/GB657389A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2436012A1 (en) * | 1978-09-12 | 1980-04-11 | Exi Kuznechn | Drive for hydraulic screw press - has hydropneumatic accumulator and distributor providing alternate connection via non-return valves |
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