GB652092A - Improvements in and relating to hydraulic pumps and motors - Google Patents

Improvements in and relating to hydraulic pumps and motors

Info

Publication number
GB652092A
GB652092A GB34700/46A GB3470046A GB652092A GB 652092 A GB652092 A GB 652092A GB 34700/46 A GB34700/46 A GB 34700/46A GB 3470046 A GB3470046 A GB 3470046A GB 652092 A GB652092 A GB 652092A
Authority
GB
United Kingdom
Prior art keywords
shaft
rotor
pistons
cylinder block
axis
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
Application number
GB34700/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scintilla AG
Original Assignee
Scintilla AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scintilla AG filed Critical Scintilla AG
Publication of GB652092A publication Critical patent/GB652092A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/06—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
    • F01B13/061—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders
    • F01B13/062—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders cylinder block and actuating or actuated cam both rotating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/0641—Details, component parts specially adapted for such machines
    • F01B1/0644—Pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/0675—Controlling
    • F01B1/0686—Controlling by changing the effective piston stroke
    • F01B1/0689—Controlling by changing the effective piston stroke by changing the excentricity of one element relative to another element

Abstract

652,092. Hydraulic pumps. SCINTILLA, Ltd. Nov. 22, 1946, No. 34700.. Convention date, Jan. 15, 1945. [Class 102(i)] [Also in Group XXIX] The invention relates to high pressure hydraulic pumps and motors of the type in which a cylinder block having radially disposed cylinders is rotatably mounted on a non-rotatable shaft having inlet and outlet ducts therein and pistons slidably arranged in the cylinders are connected at their outer ends to a spider secured to a rotatable shaft the eccentricity of the fixed shaft with respect to the rotatable shaft being variable. The figures show a hydraulic pump or motor having radial cylinders in a rotary cylinder block 3, a rotor 7 carrying pistons 5 rotating about a stationary axis while the cylinder block is mounted on a non-rotating shaft 2 parallel with and movable in a direction perpendicular to this axis to vary the piston stroke. The shaft 2 is carried by a head 22 which is movable in a guide 23 by means of a threaded spindle 20 and hand wheel 21. In a modification the shaft 2 instead of being carried by the head 22 is supported on a lever which is pivoted about an axis parallel to the axis of rotation movement of the lever varying the eccentricity of the cylinder block to vary the piston stroke. As shown the pistons have enlarged ends 11 which have surfaces which can slide on surfaces 10 on the rotor 7. These surfaces may be formed on separate members fixed in a groove in the rotor by nuts and bolts. Each piston may have an axial passage in it opening into a hollow space 16 so that liquid forced through it relieves the pressure on the foot of the piston. Small passages 11<SP>1</SP> in the foot of the pistons may be provided for lubrication purposes. In another modification the pistons are carried by connecting rods pivoted to the rotor. A coupling 32 positively ensures that the cylinder block and rotor will rotate together. The pump or motor can conveniently be used with other machines, the rotor shell 7 being mounted on the end of the shaft 8 preferably in a bearing of the machine casing. The Specification as open to inspection under Sect. 91 states that the non-rotating shaft 2 may be adjusted by means of a servomotor. This subject-matter does not appear in the Specification as accepted.
GB34700/46A 1945-01-15 1946-11-22 Improvements in and relating to hydraulic pumps and motors Expired GB652092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH652092X 1945-01-15

Publications (1)

Publication Number Publication Date
GB652092A true GB652092A (en) 1951-04-18

Family

ID=4526198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34700/46A Expired GB652092A (en) 1945-01-15 1946-11-22 Improvements in and relating to hydraulic pumps and motors

Country Status (1)

Country Link
GB (1) GB652092A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939403A (en) * 1958-01-17 1960-06-07 Soden Adolph F Graf Von Rotary unit for vacuum, air pressures and fluid circulation
US2967490A (en) * 1957-10-29 1961-01-10 Soden Adolph F Graf Von Rotary pump and the like
US3242870A (en) * 1961-10-06 1966-03-29 Stewart Warner Corp Hydraulic pump or motor
US3955477A (en) * 1973-11-27 1976-05-11 Sulzer Brothers Limited Hydrostatic piston machine having a guide for laterally guiding a cylinder block pintle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967490A (en) * 1957-10-29 1961-01-10 Soden Adolph F Graf Von Rotary pump and the like
US2939403A (en) * 1958-01-17 1960-06-07 Soden Adolph F Graf Von Rotary unit for vacuum, air pressures and fluid circulation
US3242870A (en) * 1961-10-06 1966-03-29 Stewart Warner Corp Hydraulic pump or motor
US3955477A (en) * 1973-11-27 1976-05-11 Sulzer Brothers Limited Hydrostatic piston machine having a guide for laterally guiding a cylinder block pintle

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