FR2389781A1 - - Google Patents
Info
- Publication number
- FR2389781A1 FR2389781A1 FR7813423A FR7813423A FR2389781A1 FR 2389781 A1 FR2389781 A1 FR 2389781A1 FR 7813423 A FR7813423 A FR 7813423A FR 7813423 A FR7813423 A FR 7813423A FR 2389781 A1 FR2389781 A1 FR 2389781A1
- Authority
- FR
- France
- Prior art keywords
- pistons
- bores
- cam
- rotor
- hand
- 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
- F04B49/08—Regulating by delivery pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
Machine dans laquelle le volume des alésages des pistons de réglage est réduit par l'introduction d'une pièce de remplissage. La came annulaire 12 est placée dans l'espace interne 11 du carter 10. Des pistons 14, glissant dans les alésages 15 du rotor 16, s'appuient sur la came 12 par l'intermédiaire de sabots 13. Le rotor 16 tourne sur l'axe de distribution 17 contenant des passages 18, 19 pour le fluide sous pression. La came est déplaçable par les pistons 20 et 21 agissant en des points diametralement opposés. Ces pistons glissent dans les alésages 22 et 24 fermés par les couvercles 23 et 25. Les pistons 20 et 21 comportent chacun un alésage borgne 28, 36 contenant une pièce de remplissage 29, 37 entourée d'un ressort 31, 39 qui s'appuie, d'une part, sur un collet 30, 38 et, d'autre part, sur le couvercle 23, 25.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2720306A DE2720306C2 (de) | 1977-05-06 | 1977-05-06 | Verdrängermaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2389781A1 true FR2389781A1 (fr) | 1978-12-01 |
| FR2389781B1 FR2389781B1 (fr) | 1986-04-25 |
Family
ID=6008191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7813423A Expired FR2389781B1 (fr) | 1977-05-06 | 1978-05-05 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4185540A (fr) |
| DE (1) | DE2720306C2 (fr) |
| FR (1) | FR2389781B1 (fr) |
| GB (1) | GB1582202A (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3048789A1 (de) * | 1980-12-23 | 1982-07-15 | Robert Bosch Gmbh, 7000 Stuttgart | Hydrostatische verdraengermaschine |
| GB8722253D0 (en) * | 1987-09-22 | 1987-10-28 | Tupper A W | Safety attachment systems |
| DE3910728A1 (de) * | 1989-04-03 | 1990-10-04 | Pleiger Maschf Paul | Vorrichtung zum regeln des betriebes von hydromotoren |
| DE3921790A1 (de) * | 1989-07-03 | 1991-01-17 | Voith Gmbh J M | Hydrostatische verdraengermaschine |
| DE19504220A1 (de) * | 1995-02-09 | 1996-08-14 | Bosch Gmbh Robert | Verstellbare hydrostatische Pumpe |
| US9228571B2 (en) * | 2012-06-25 | 2016-01-05 | Bell Helicopter Textron Inc. | Variable radial fluid device with differential piston control |
| US9303638B2 (en) * | 2012-06-25 | 2016-04-05 | Bell Helicopter Textron Inc. | Variable radial fluid devices in series |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2406138A (en) * | 1942-01-14 | 1946-08-20 | Oilgear Co | Hydrodynamic machine |
| US2838003A (en) * | 1947-01-21 | 1958-06-10 | Joseph F Joy | Hydraulic motor and/or pump mechanism |
| DE2203054A1 (de) * | 1971-01-29 | 1972-08-24 | Chamberlain Ind Ltd | Hydraulikmotor od.dgl. |
| FR2151316A5 (fr) * | 1971-08-20 | 1973-04-13 | Bosch | |
| DE2224014A1 (de) * | 1972-05-17 | 1973-11-29 | Bosch Gmbh Robert | Servoverstelleinrichtung |
| US3921503A (en) * | 1972-03-21 | 1975-11-25 | Philip A Kubik | Control system for a fluid system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA714881A (en) * | 1965-08-03 | F. Topinka George | Piston cushion for fluid operated cylinder | |
| US2603952A (en) * | 1948-07-03 | 1952-07-22 | Adiel Y Dodge | Wheel cylinder for hydraulic brake mechanism |
| US3549281A (en) * | 1968-12-03 | 1970-12-22 | Rex Chainbelt Inc | Variable volume vane type pump |
| US3809500A (en) * | 1972-02-25 | 1974-05-07 | Handtmann A Metalgusswerk Arma | Method and apparatus for regulating pumps |
| DE2362093A1 (de) * | 1973-12-14 | 1975-06-19 | Bosch Gmbh Robert | Drehmoment-regeleinrichtung fuer eine verstellbare pumpe |
| DE2607780C2 (de) * | 1976-02-26 | 1981-11-19 | Robert Bosch Gmbh, 7000 Stuttgart | Verstelleinrichtung für eine Radialkolbenpumpe |
-
1977
- 1977-05-06 DE DE2720306A patent/DE2720306C2/de not_active Expired
-
1978
- 1978-04-06 GB GB13585/78A patent/GB1582202A/en not_active Expired
- 1978-04-10 US US05/895,125 patent/US4185540A/en not_active Expired - Lifetime
- 1978-05-05 FR FR7813423A patent/FR2389781B1/fr not_active Expired
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2406138A (en) * | 1942-01-14 | 1946-08-20 | Oilgear Co | Hydrodynamic machine |
| US2838003A (en) * | 1947-01-21 | 1958-06-10 | Joseph F Joy | Hydraulic motor and/or pump mechanism |
| DE2203054A1 (de) * | 1971-01-29 | 1972-08-24 | Chamberlain Ind Ltd | Hydraulikmotor od.dgl. |
| FR2151316A5 (fr) * | 1971-08-20 | 1973-04-13 | Bosch | |
| US3921503A (en) * | 1972-03-21 | 1975-11-25 | Philip A Kubik | Control system for a fluid system |
| DE2224014A1 (de) * | 1972-05-17 | 1973-11-29 | Bosch Gmbh Robert | Servoverstelleinrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| US4185540A (en) | 1980-01-29 |
| GB1582202A (en) | 1981-01-07 |
| DE2720306A1 (de) | 1978-11-16 |
| DE2720306C2 (de) | 1986-02-27 |
| FR2389781B1 (fr) | 1986-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |