ES349837A1 - Hydraulic motors and pumps - Google Patents

Hydraulic motors and pumps

Info

Publication number
ES349837A1
ES349837A1 ES349837A ES349837A ES349837A1 ES 349837 A1 ES349837 A1 ES 349837A1 ES 349837 A ES349837 A ES 349837A ES 349837 A ES349837 A ES 349837A ES 349837 A1 ES349837 A1 ES 349837A1
Authority
ES
Spain
Prior art keywords
motor
swash
ball
plate
pump
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
ES349837A
Other languages
Spanish (es)
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of ES349837A1 publication Critical patent/ES349837A1/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
    • F01B21/00—Combinations of two or more machines or engines
    • F01B21/02—Combinations of two or more machines or engines the machines or engines being all of reciprocating-piston type
    • 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
    • F01B31/00—Component parts, details, or accessories not provided for in, or of interest apart from, other groups
    • F01B31/22—Idling devices, e.g. having by-passing valves
    • F01B31/24—Disengagement of connections between pistons and main shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F04C11/006—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle having complementary function

Abstract

A hydraulic motor or pump unit for covering a wide range of torque and speed requirements comprises a radial ball piston motor or pump and a swash-plate motor or pump driving or driven by a common shaft 21, the ball piston motor being operational for high torque and low speed, and being rendered inoperative by holding its ball pistons 43 clear of its multi-lobed cam track 45 when the swash-plate motor is in operation for low torque and high speed. In the motor unit shown, shaft 21 carries a lathe chuck 5 for a work piece. A valve, Fig. 2 (not shown), controls the supply and return of pressure liquid to and from the ball piston motor, the valve also acting to connect a chamber 48 surrounding ball pistons 43 either to pressure or exhaust. When chamber 48 is pressurized and cylinders 41 are connected to low pressure or exhaust, ball pistons 43 are held clear of cam track 45 for operation of the swash-plate motor, the speed of which is adjusted by tilting swashplate 67. The motor unit is supplied by an electric motor-driven swash-plate pump of adjustable output. In Fig. 4 (not shown), the ball piston and swash-plate motors are on separate shafts coupled by gearing.
ES349837A 1967-01-27 1968-01-27 Hydraulic motors and pumps Expired ES349837A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4240/67A GB1193861A (en) 1967-01-27 1967-01-27 Improvements in and relating to Hydraulic Motors and Pumps

Publications (1)

Publication Number Publication Date
ES349837A1 true ES349837A1 (en) 1969-04-16

Family

ID=9773366

Family Applications (1)

Application Number Title Priority Date Filing Date
ES349837A Expired ES349837A1 (en) 1967-01-27 1968-01-27 Hydraulic motors and pumps

Country Status (5)

Country Link
US (1) US3527144A (en)
DE (1) DE1628130A1 (en)
ES (1) ES349837A1 (en)
FR (1) FR1560531A (en)
GB (1) GB1193861A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893572A (en) * 1970-06-26 1975-07-08 Caterpillar Tractor Co Systems for operating and controlling hydraulically driven winches, hoists, windlasses and the like
GB1335386A (en) * 1970-06-26 1973-10-24 Caterpillar Tractor Co Systems for operating and controlling hydraulically driven winches hoists and the like
DE4206102C2 (en) * 1992-02-27 2000-11-09 Linde Ag Hydromechanical transmission
FI104014B1 (en) * 1994-05-18 1999-10-29 Valmet Voimansiirto Oy Radial piston hydraulic motor and method for adjusting radial hydraulic motor
US6178746B1 (en) * 1998-03-31 2001-01-30 Unipat Ag Hydrostatic machines for use in transmission and transaxle product
GB2579359B (en) * 2018-11-28 2021-04-14 Terex Gb Ltd Rotor positioning device of an impact crusher

Also Published As

Publication number Publication date
US3527144A (en) 1970-09-08
DE1628130A1 (en) 1971-04-08
FR1560531A (en) 1969-03-21
GB1193861A (en) 1970-06-03

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