AU7656791A - Radial piston pump or engine - Google Patents

Radial piston pump or engine

Info

Publication number
AU7656791A
AU7656791A AU76567/91A AU7656791A AU7656791A AU 7656791 A AU7656791 A AU 7656791A AU 76567/91 A AU76567/91 A AU 76567/91A AU 7656791 A AU7656791 A AU 7656791A AU 7656791 A AU7656791 A AU 7656791A
Authority
AU
Australia
Prior art keywords
engine
piston pump
radial piston
needles
cam
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.)
Granted
Application number
AU76567/91A
Other versions
AU656893B2 (en
Inventor
Ester Errante
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU7656791A publication Critical patent/AU7656791A/en
Application granted granted Critical
Publication of AU656893B2 publication Critical patent/AU656893B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • F16C33/3713—Loose spacing bodies with other rolling elements serving as spacing bodies, e.g. the spacing bodies are in rolling contact with the load carrying rolling elements
    • 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
    • F01B1/0668—Supporting and guiding means for the piston
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/40—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings with loose spacing bodies between the rollers
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Reciprocating Pumps (AREA)
  • Saccharide Compounds (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Steroid Compounds (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Hydraulic Motors (AREA)

Abstract

A radial piston pump or engine wherein the thrust exerted by the pistons is transmitted to the cam (1) via a needle bearing (2) which comprises no outer roller ring so that the needles (2) roll directly on the cam (1). To reduce friction, the needles are kept apart by smaller diameter needles or spheres (3).
AU76567/91A 1990-04-24 1991-04-10 Radial piston pump or engine Ceased AU656893B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT12450A IT1238749B (en) 1990-04-24 1990-04-24 REPLACEMENT IN RADIAL CYLINDER PUMPS AND MOTORS FOR OELODYNAMICS IN WHICH THE ANNULAR TRACK IS CONSTITUTED BY A ROLLER BEARING WITHOUT INTERNAL RING, OF THE LAST WITH A ROLLER SYSTEM WITHOUT CAGES POSITED ALMOST IN CONTACT WITH THEM.
IT12450/90 1990-04-24
PCT/IT1991/000029 WO1991016547A1 (en) 1990-04-24 1991-04-10 Radial piston pump or engine

Publications (2)

Publication Number Publication Date
AU7656791A true AU7656791A (en) 1991-11-11
AU656893B2 AU656893B2 (en) 1995-02-23

Family

ID=11140307

Family Applications (1)

Application Number Title Priority Date Filing Date
AU76567/91A Ceased AU656893B2 (en) 1990-04-24 1991-04-10 Radial piston pump or engine

Country Status (8)

Country Link
EP (1) EP0481046B1 (en)
AT (1) ATE123849T1 (en)
AU (1) AU656893B2 (en)
CA (1) CA2060502A1 (en)
DE (1) DE69110397T2 (en)
ES (1) ES2075447T3 (en)
IT (1) IT1238749B (en)
WO (1) WO1991016547A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2189773A (en) * 1935-08-09 1940-02-13 Elek K Benedek Hydraulic pump or motor
US2130299A (en) * 1936-02-10 1938-09-13 Hydraulic Press Corp Inc Radial pump
FR1335536A (en) * 1962-06-08 1963-08-23 Alsacienne Atom Improvement in needle bearings and the like
GB8720210D0 (en) * 1987-08-27 1987-10-07 Whittley E R Roller bearings

Also Published As

Publication number Publication date
IT9012450A0 (en) 1990-04-24
EP0481046B1 (en) 1995-06-14
DE69110397D1 (en) 1995-07-20
WO1991016547A1 (en) 1991-10-31
AU656893B2 (en) 1995-02-23
IT1238749B (en) 1993-09-03
IT9012450A1 (en) 1991-10-24
EP0481046A1 (en) 1992-04-22
DE69110397T2 (en) 1996-03-21
ES2075447T3 (en) 1995-10-01
CA2060502A1 (en) 1991-10-25
ATE123849T1 (en) 1995-06-15

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