FR2378959A1 - Machines hydrauliques rotatives - Google Patents
Machines hydrauliques rotativesInfo
- Publication number
- FR2378959A1 FR2378959A1 FR7802016A FR7802016A FR2378959A1 FR 2378959 A1 FR2378959 A1 FR 2378959A1 FR 7802016 A FR7802016 A FR 7802016A FR 7802016 A FR7802016 A FR 7802016A FR 2378959 A1 FR2378959 A1 FR 2378959A1
- Authority
- FR
- France
- Prior art keywords
- bores
- orifice
- plate
- rotary hydraulic
- rotor
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
L'invention concerne les pompes et moteurs hydrauliques rotatifs. La machine comprend un rotor 15 qui comporte plusieurs alésages 16 logeant des pistons et qui est en appui contre une plaque à orifices 25. Des ouvertures 31, 32 formées dans la plaque 25 permettent aux alésages de communiquer avec un orifice haute pression 26 avant d'être complètement alignés avec lui Un robinet à piston 34 fonctionne en réponse aux pressions des alésages et de l'orifice pour égaliser ces pressions avant que la pleine communication soit établie entre les alésages et l'orifice. Des passages 44 et 45 formés respectivement dans le rotor 15 et dans la plaque 25 permettent à la pression des alésages 16 d'être rapidement accrue immédiatement après que les pistons ont atteint leur point mort haut dans les alésages 16. L'invention réduit considérablement les ondes de choc engendrées dans les machines de ce type.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3284/77A GB1589601A (en) | 1977-01-27 | 1977-01-27 | Rotary hydraulic machines |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2378959A1 true FR2378959A1 (fr) | 1978-08-25 |
FR2378959B1 FR2378959B1 (fr) | 1981-10-23 |
Family
ID=9755440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7802016A Granted FR2378959A1 (fr) | 1977-01-27 | 1978-01-25 | Machines hydrauliques rotatives |
Country Status (6)
Country | Link |
---|---|
US (1) | US4175472A (fr) |
JP (1) | JPS5393405A (fr) |
DE (1) | DE2754116A1 (fr) |
FR (1) | FR2378959A1 (fr) |
GB (1) | GB1589601A (fr) |
IT (1) | IT1088928B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2837178A1 (de) * | 1978-08-25 | 1980-03-06 | Aleksandr Konstantino Alekseev | Axial-drehkolbenpumpe |
WO1997022805A1 (fr) * | 1995-12-20 | 1997-06-26 | Trinova Corporation | Pompe hydraulique a bruit reduit pourvue d'un dispositif de synchronisation de clapet |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60162081A (ja) * | 1984-02-03 | 1985-08-23 | Tokyo Keiki Co Ltd | タイミング弁機構 |
US4757743A (en) * | 1987-04-29 | 1988-07-19 | Vickers, Incorporated | Power transmission |
IL120609A0 (en) * | 1997-04-06 | 1997-08-14 | Nordip Ltd | Hydraulic axial piston pumps |
JP4646972B2 (ja) * | 2005-02-10 | 2011-03-09 | 株式会社小松製作所 | 油圧ピストンポンプ |
US10227964B2 (en) * | 2015-08-28 | 2019-03-12 | Caterpillar Inc. | Hydraulic pump port plate with variable area metering notch |
JP6569515B2 (ja) * | 2015-12-24 | 2019-09-04 | 株式会社豊田自動織機 | 斜板式ピストンポンプ |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3208397A (en) * | 1963-06-19 | 1965-09-28 | Lehrer Alexander | Quiet hydraulic pump |
GB1268203A (en) * | 1968-08-26 | 1972-03-22 | Dowty Technical Dev Ltd | Hydraulic reciprocating motor |
GB1321476A (en) * | 1970-10-28 | 1973-06-27 | Orsta Hydraulik Veb K | Hydrostatic piston pump |
GB1535184A (en) * | 1975-04-24 | 1978-12-13 | Lucas Industries Ltd | Rotary hydraulic machines |
-
1977
- 1977-01-27 GB GB3284/77A patent/GB1589601A/en not_active Expired
- 1977-12-05 DE DE19772754116 patent/DE2754116A1/de not_active Withdrawn
- 1977-12-09 US US05/858,944 patent/US4175472A/en not_active Expired - Lifetime
- 1977-12-23 IT IT31209/77A patent/IT1088928B/it active
-
1978
- 1978-01-25 FR FR7802016A patent/FR2378959A1/fr active Granted
- 1978-01-27 JP JP818478A patent/JPS5393405A/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2837178A1 (de) * | 1978-08-25 | 1980-03-06 | Aleksandr Konstantino Alekseev | Axial-drehkolbenpumpe |
WO1997022805A1 (fr) * | 1995-12-20 | 1997-06-26 | Trinova Corporation | Pompe hydraulique a bruit reduit pourvue d'un dispositif de synchronisation de clapet |
Also Published As
Publication number | Publication date |
---|---|
DE2754116A1 (de) | 1978-08-03 |
GB1589601A (en) | 1981-05-13 |
JPS5393405A (en) | 1978-08-16 |
FR2378959B1 (fr) | 1981-10-23 |
US4175472A (en) | 1979-11-27 |
IT1088928B (it) | 1985-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |