FR2345603A1 - Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels - Google Patents
Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levelsInfo
- Publication number
- FR2345603A1 FR2345603A1 FR7608468A FR7608468A FR2345603A1 FR 2345603 A1 FR2345603 A1 FR 2345603A1 FR 7608468 A FR7608468 A FR 7608468A FR 7608468 A FR7608468 A FR 7608468A FR 2345603 A1 FR2345603 A1 FR 2345603A1
- Authority
- FR
- France
- Prior art keywords
- hydraulic circuit
- chamber
- vehicle hydraulic
- incorporates
- electromagnetic 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
A pump for supplying a pressure accumulator in a vehicle hydraulic circuit has a pump chamber with an eccentric disc (6) while reciprocates a vertical spindle (3) so at to raise and lower a valve disc (12) against a spring (17) to allow fluid to pass to a horizontal channel (18) between feed and delivery tubes (23, 34) at opposite ends of the housing. The block (2) through which the pump spindle passes has an side outlet (8) which slopes upwards to a large chamber on the feed side of the horizontal channel. This chamber contains a diaphragm (37) which acts as a bistable element to open or close communication between one end and the other of the chamber so as to cut off or open the supply to the pressure accumulator when upper or lower pressure limits are exceeded. An alternative design uses a two position electromagnetically operated system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7608468A FR2345603A1 (en) | 1976-03-24 | 1976-03-24 | Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7608468A FR2345603A1 (en) | 1976-03-24 | 1976-03-24 | Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2345603A1 true FR2345603A1 (en) | 1977-10-21 |
FR2345603B1 FR2345603B1 (en) | 1978-09-01 |
Family
ID=9170848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7608468A Granted FR2345603A1 (en) | 1976-03-24 | 1976-03-24 | Vehicle hydraulic circuit pump cut off system - incorporates bistable diaphragm or two position electromagnetic valve operating at set levels |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2345603A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2462591A1 (en) * | 1979-07-25 | 1981-02-13 | Zahnradfabrik Friedrichshafen | HIGH PRESSURE PUMP WITH PRESSURE REGULATOR |
US5165865A (en) * | 1990-04-11 | 1992-11-24 | Robert Bosch Gmbh | Intake neck connection for a hydraulic pump |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2221673A1 (en) * | 1973-03-15 | 1974-10-11 | Parker Hannifin Corp |
-
1976
- 1976-03-24 FR FR7608468A patent/FR2345603A1/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2221673A1 (en) * | 1973-03-15 | 1974-10-11 | Parker Hannifin Corp |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2462591A1 (en) * | 1979-07-25 | 1981-02-13 | Zahnradfabrik Friedrichshafen | HIGH PRESSURE PUMP WITH PRESSURE REGULATOR |
US5165865A (en) * | 1990-04-11 | 1992-11-24 | Robert Bosch Gmbh | Intake neck connection for a hydraulic pump |
Also Published As
Publication number | Publication date |
---|---|
FR2345603B1 (en) | 1978-09-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
DL | Decision of the director general to leave to make available licences of right | ||
ST | Notification of lapse |