US3030932A - Hydraulic radially acting reciprocating engine - Google Patents

Hydraulic radially acting reciprocating engine Download PDF

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Publication number
US3030932A
US3030932A US116511A US11651161A US3030932A US 3030932 A US3030932 A US 3030932A US 116511 A US116511 A US 116511A US 11651161 A US11651161 A US 11651161A US 3030932 A US3030932 A US 3030932A
Authority
US
United States
Prior art keywords
plunger
sleeve
hydraulic
reciprocating engine
casing
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 - Lifetime
Application number
US116511A
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English (en)
Inventor
Muller Theodor
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.)
Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
Original Assignee
Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
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 Schweizerische Lokomotiv und Maschinenfabrik AG (SLM) filed Critical Schweizerische Lokomotiv und Maschinenfabrik AG (SLM)
Application granted granted Critical
Publication of US3030932A publication Critical patent/US3030932A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D31/00—Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
    • F16D31/02—Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
    • 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
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/0403—Details, component parts specially adapted of such engines
    • F03C1/0406—Pistons
    • 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
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/0403—Details, component parts specially adapted of such engines
    • F03C1/0409—Cams
    • 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
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
    • F03C1/24—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders
    • F03C1/247—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders with cylinders in star- or fan-arrangement, the connection of the pistons with an actuated element being at the outer ends of the cylinders

Definitions

  • the present invention relates to hydraulic radially acting reciprocating engines which are operable as pump, motor or clutch, of the type in which the radial cylinder unit effects a circular rolling movement, caused by eccentric or other guiding members, relatively to the engine casing without rotating with respect to the latter, and the admission of fluid to the cylinders provided with ports is controlled by means of a rotary slide valve, and in which the free outer ends of the pistons provided with conical heads roll along guide paths displaced from the transverse middle plane during their to-and-fro movements in circumferential direction,
  • the engine casing is provided with a guide path for the pistons on either side of the transverse middle plane of the piston and cylinder unit assembly, and each piston comprises two coaxial parts including a core plunger movable within a sleeve plunger, the outer end of the sleeve plunger coacting with one of said guide paths and the outer end of the core plunger coacting with the other guide path.
  • FIGURE 1 is an axial section through a preferred embodiment of a piston engine according to the invention, operating as a pump, on the line 1-1 of FIGURE 2,
  • FIGURE 2 is a transverse section through the pump according to the line 11-11 of FIGURE 1, and
  • FIGURE 3 is a longitudinal section through a cylinder drawn to a larger scale and indicating the forces arising during operation.
  • the two-part engine casing 1 carries two bearings 2 for the drive shaft 3.
  • a cylinder unit 5 comprising six cylinders 7 is rotatably supported upon the crank 4 of the shaft 3 by the intermediary of a control sleeve 6.
  • the sleeve 6 is provided with a port 8 for each of the cylinders 7.
  • the cylinder unit 5 Owing to the rotary movement of the crank 4 the cylinder unit 5 carries out a circular rolling movement within the casing 1 and is guided by the two auxiliary cranks 9 without rotation with respect to the casing.
  • Ducts 10 and 11 are provided in the shaft 3 for the sup ply and the discharge of operating fluid to and from the crank 4. These ducts open into the suction slot 12 and the delivery slot 13, respectively, in the crank.
  • the pistons reciprocating in the cylinders consist each of two parts; a core plunger 14 and a sleeve plunger 15 are arranged within the cylinders 7.
  • the sleeve plunger 15 is provided with a conical head rim 16 abutting against the left-hand eccentric guiding path 17 of the plate 18 inserted in the casing 1.
  • the core plunger 14 is mounted within the sleeve plunger 15 for longitudinal movement relatively thereto, and the conical head 1a of plunger 14 is urged by fluid pressure against the righthand eccentric guiding path 20 of plates 18.
  • the two guiding paths are arranged in rooflike manner with respect to the middle transverse plane through the piston assembly.
  • a disk 21 mounted on the sleeve plunger 15 and a counter-guiding path 22 provided on the casing I serve to prevent the pistons from moving too far away from the respective guide paths, while the core plunger 14 is protected by its own head 19, projecting beyond the head of the sleeve plunger 15, against sliding back into the sleeve plunger 15.
  • the weight of the plungers can be adjusted so that with a rotatably arranged cylinder unit, the axial forces produced due to the centrifugal forces of the plungers will compensate each other completely.
  • a hydraulic radially acting reciprocating engine comprising a casing, a radial cylinder unit mounted eccentrically within the casing for effecting a circular rolling movement without relative rotation with respect to the casing, rotary valve means for controlling admission and delivery of fluid to and from the cylinders, a two-part plunger piston reciprocating in each cylinder, each plunger piston including a pair of coaxially arranged core and sleeve plungers movable one within the other, guide paths for the outer ends of said plungers provided on said casing, each pair of plungers coacting with two guide paths disposed each at one side of the transverse middle plane of the cylinder unit, said core plunger coacting with one guide path and said sleeve plunger coacting withthe other guide path.
  • a radially acting reciprocating engine according to claim 3, wherein the cross-sectional ratio of the two plungers and the inclination of the guiding surfaces with respect to said transverse middle plane is selected so that the resultant of all forces, acting upon the plungers during operation and due to the pressure medium, the guide paths and the dynamic forces, does not have any axially directed component.
  • a radially acting reciprocating engine according to claim 1, wherein the casing is provided with a counterguiding path for the sleeve plunger in order to prevent separation of the plunger heads from the guide paths, while the head of the core plunger coacts with the sleeve plunger to prevent the core plunger from sliding back into the sleeve plunger.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
US116511A 1960-06-14 1961-06-12 Hydraulic radially acting reciprocating engine Expired - Lifetime US3030932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH677460A CH379926A (de) 1960-06-14 1960-06-14 Kolbenkopfführung bei einer Flüssigkeits-Radialkolbenmaschine

Publications (1)

Publication Number Publication Date
US3030932A true US3030932A (en) 1962-04-24

Family

ID=4314808

Family Applications (1)

Application Number Title Priority Date Filing Date
US116511A Expired - Lifetime US3030932A (en) 1960-06-14 1961-06-12 Hydraulic radially acting reciprocating engine

Country Status (6)

Country Link
US (1) US3030932A (no)
CH (1) CH379926A (no)
DE (1) DE1155336B (no)
FR (1) FR1291331A (no)
GB (1) GB973749A (no)
NL (1) NL100828C (no)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168007A (en) * 1963-12-16 1965-02-02 Oilgear Co Radial crank type hydraulic machine
US3168006A (en) * 1963-04-08 1965-02-02 Oilgear Co Hydraulic engine
US3194123A (en) * 1962-05-25 1965-07-13 John H Feaster Fluid pressure motor
US3339460A (en) * 1965-05-07 1967-09-05 J C Birdwell Pressure fluid motor
DE2331273A1 (de) * 1972-06-20 1974-01-03 Hydrostatic Transmissions Ltd Fluidumdruck-maschine
EP3023637A1 (en) * 2014-11-07 2016-05-25 Parker Hannifin Manufacturing S.r.l. Fluid-column hydraulic motor with simplified means for retaining the propulsion members against respective sliding surfaces
CN106988958A (zh) * 2017-04-05 2017-07-28 温州职业技术学院 低速大扭矩轴向柱塞式液压马达

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH579211A5 (no) * 1974-06-12 1976-08-31 Sulzer Ag
DE3424862C1 (de) * 1984-07-06 1985-07-25 Hauhinco Maschinenfabrik G. Hausherr, Jochums Gmbh & Co Kg, 4300 Essen Radialkolbenpumpe fuer hydraulische Medien
DE19504380C2 (de) * 1995-01-05 1997-03-13 Linear Anstalt Pumpe zum Fördern eines Mediums
US5911561A (en) * 1995-01-05 1999-06-15 Linear Anstalt Radial pump with static eccentric and rotatable cylinders
DE102019205824A1 (de) * 2019-04-24 2020-10-29 Zf Friedrichshafen Ag Pumpe, insbesondere Ölpumpe für ein Getriebe

Citations (2)

* 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
US3010405A (en) * 1959-03-19 1961-11-28 Sundstrand Corp Pump or motor device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2074068A (en) * 1933-03-23 1937-03-16 Oilgear Co Pump or motor
US2383059A (en) * 1941-12-31 1945-08-21 Superdraulic Corp Fluid pump
DE812620C (de) * 1948-12-31 1951-09-03 Walter Theobald Kolben, insbesondere fuer Fluessigkeitsgetriebe

Patent Citations (2)

* 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
US3010405A (en) * 1959-03-19 1961-11-28 Sundstrand Corp Pump or motor device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194123A (en) * 1962-05-25 1965-07-13 John H Feaster Fluid pressure motor
US3168006A (en) * 1963-04-08 1965-02-02 Oilgear Co Hydraulic engine
US3168007A (en) * 1963-12-16 1965-02-02 Oilgear Co Radial crank type hydraulic machine
US3339460A (en) * 1965-05-07 1967-09-05 J C Birdwell Pressure fluid motor
DE2331273A1 (de) * 1972-06-20 1974-01-03 Hydrostatic Transmissions Ltd Fluidumdruck-maschine
US3813995A (en) * 1972-06-20 1974-06-04 Hydrostatic Transmission Ltd Fluid pressure machines
EP3023637A1 (en) * 2014-11-07 2016-05-25 Parker Hannifin Manufacturing S.r.l. Fluid-column hydraulic motor with simplified means for retaining the propulsion members against respective sliding surfaces
CN106988958A (zh) * 2017-04-05 2017-07-28 温州职业技术学院 低速大扭矩轴向柱塞式液压马达
CN106988958B (zh) * 2017-04-05 2018-09-18 温州职业技术学院 低速大扭矩轴向柱塞式液压马达

Also Published As

Publication number Publication date
CH379926A (de) 1964-07-15
DE1155336B (de) 1963-10-03
NL100828C (no)
GB973749A (en) 1964-10-28
FR1291331A (fr) 1962-04-20

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