GB1332951A - Low speed high torque rotary hydraulic motor - Google Patents

Low speed high torque rotary hydraulic motor

Info

Publication number
GB1332951A
GB1332951A GB4770271A GB4770271A GB1332951A GB 1332951 A GB1332951 A GB 1332951A GB 4770271 A GB4770271 A GB 4770271A GB 4770271 A GB4770271 A GB 4770271A GB 1332951 A GB1332951 A GB 1332951A
Authority
GB
United Kingdom
Prior art keywords
piston
groove
abutment members
casing
pistons
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
GB4770271A
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.)
DAMATO M
Original Assignee
DAMATO M
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 DAMATO M filed Critical DAMATO M
Publication of GB1332951A publication Critical patent/GB1332951A/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
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3446—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/30—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F03C2/304—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movements defined in sub-group F03C2/08 or F03C2/22 and relative reciprocation between members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Motors (AREA)

Abstract

1332951 Rotary hydraulic motors M D'AMATO 13 Oct 1971 [4 Nov 1970] 47702/71 Heading F1F An hydraulic motor comprises a rotor 18 having on each end face 18r, 18f an annular groove 42 intersected by a plurality of radial grooves 30, a plurality of angularly spaced abutment members 44a, 44b, ... mounted on stator end plates 16r, 16f and positioned in each annular groove 42, and pistons or vanes 34a, 34b, .... reciprocable one in each radial groove 30 from inner positions (see piston 34a) in which they do not foul the abutment members to outer positions (see piston 34c) in which they extend across their groove 42 and define with one of the abutment members an arcuate working chamber. The working chambers are filled and emptied through axial ducts 40 in the pistons, the inner ends of the radial grooves 30 being alternately filled and emptied through sequential communication with a ring of alternating inlet and outlet ports 70a, 72a, 70b, 72b... in the stator end plates. Thus in Fig.3 the groove 30 containing the piston 34b is in communication with the inlet port 70a. Accordingly pressurized liquid flows through the passage 40 and an L- shaped stator recess 64a into the annular groove 42 between the piston 34c and the abutment member 44a, thereby to cause rotation of the rotor. Simultaneously liquid in the groove 42 on the other side of the piston 34c exhausts through the piston 34d and the port 72a. Each piston has a recess which receives a ball 38 seating in an undulating cam track 36 in the respective end plate 16f, 16r. The shape of the track 36 is such that as the rotor rotates the pistons reciprocate without fouling the stationary abutment members 44a,44b,... A casing 6, 8, 10 encloses the end plates 16r, 16f which are provided with identical pressure pads 74 facing the casing to provide axial force balance. The pressure pads 74 are arranged in two sets, one set being connected by passages (80) to high pressure and the other by passages 82 to low pressure. Each pad 74 is in communication with one of the inlet or outlet ports 70a, 72a... The cover 6 of the casing may be replaced by one which causes only certain of the arcuate chambers to be pressurized, thereby to alter the motor's torque and speed.
GB4770271A 1970-11-04 1971-10-13 Low speed high torque rotary hydraulic motor Expired GB1332951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8670070A 1970-11-04 1970-11-04

Publications (1)

Publication Number Publication Date
GB1332951A true GB1332951A (en) 1973-10-10

Family

ID=22200296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4770271A Expired GB1332951A (en) 1970-11-04 1971-10-13 Low speed high torque rotary hydraulic motor

Country Status (7)

Country Link
US (1) US3682567A (en)
CA (1) CA930609A (en)
CH (1) CH553331A (en)
DE (1) DE2154865A1 (en)
FR (1) FR2113482A5 (en)
GB (1) GB1332951A (en)
IT (1) IT940775B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE777628A (en) * 1971-01-14 1972-06-30 Marcel Jean P PRESSURE FLUID PUMPS, COMPRESSORS AND MOTORS
US8342156B2 (en) * 2009-08-27 2013-01-01 O'shea Fergal Michael Bearing arrangement for a pump
EP3489509A1 (en) * 2017-11-23 2019-05-29 Robert Bosch GmbH Cam profile for a hydrostatic radial piston machine, and hydrostatic radial piston machine

Also Published As

Publication number Publication date
DE2154865A1 (en) 1972-06-15
IT940775B (en) 1973-02-20
CA930609A (en) 1973-07-24
FR2113482A5 (en) 1972-06-23
CH553331A (en) 1974-08-30
US3682567A (en) 1972-08-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees