| (19) |
 |
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(11) |
EP 0 069 462 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
27.06.1984 Bulletin 1984/26 |
| (43) |
Date of publication A2: |
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12.01.1983 Bulletin 1983/02 |
| (22) |
Date of filing: 02.06.1982 |
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| (84) |
Designated Contracting States: |
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AT BE CH DE FR GB IT LI NL SE |
| (30) |
Priority: |
09.06.1981 GB 8117701
|
| (71) |
Applicant: MacTAGGART SCOTT & COMPANY LIMITED |
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() |
|
| (72) |
Inventor: |
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- Russell, Robert Cairns
()
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| |
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| (54) |
Hydraulic pump or motor |
(57) An hydraulic machine which can operate either as a motor or a pump, the machine having
a rotor and a stator, one of which is provided with lobed cam track means (16,17,
18, 107, 108. 109, 400, 500, 604, 605) on which operate a plurality of phased series
of piston and cylinder modules (105, 205, 306, 610) to impart relative motion between
the rotor and stator. Modular valve means (13, 35, 102, 300, 606) control the supply
of hydraulic fluid to each series of pistons.