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GB1328759A - Cam drive mechanism - Google Patents

Cam drive mechanism

Info

Publication number
GB1328759A
GB1328759A GB1100871*[A GB1100871A GB1328759A GB 1328759 A GB1328759 A GB 1328759A GB 1100871 A GB1100871 A GB 1100871A GB 1328759 A GB1328759 A GB 1328759A
Authority
GB
United Kingdom
Prior art keywords
balls
sets
annular
discs
driving discs
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
GB1100871*[A
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.)
ROLLER GEAR Ltd
Original Assignee
ROLLER GEAR Ltd
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 ROLLER GEAR Ltd filed Critical ROLLER GEAR Ltd
Publication of GB1328759A publication Critical patent/GB1328759A/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
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0002—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F01B3/0005—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having two or more sets of cylinders or 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
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/0082—Details
    • F01B3/0085—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
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • 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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
    • F16H25/12—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal or cams
    • F16H25/125—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal or cams having the cam on an end surface of the rotating element

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Reciprocating Pumps (AREA)
  • Transmission Devices (AREA)

Abstract

1328759 Cams; reciprocating pumps and motors ROLLER GEAR Ltd 23 April 1971 [23 April 1970] 11008/71 Heading F1A [Also in Division F2] In a hydraulic pump, or motor, having non- rotatable annular pistons 27-30 reciprocable in annular cylinders 17-20 of a fixed housing 11, each piston is formed with an annular multi-lobed cam surface 52 or 54 engaged by sets of equi-spaced balls 56 or 58 arranged in carriers 60 freely mounted at each side of the piston/cylinder assembly on an output shaft 40 to which are keyed, at 71, driving discs 70 formed with ball tracks 76, 78, the arrangement being such that rotary drive from the input shaft 40 and discs 70 causes planetary motion of the sets of balls 56, 58 which, via the cam surfaces 52, 54 reciprocates the annular pistons 27-30 to pump fluid via inlet and outlet valves 21, 22 and ports 12, 13 respectively. The angular construction of the ball tracks 76, 78 on the driving discs 70, Fig. 5, are mathematically evolved in terms of the cam lobe angles, Fig. 4, whereby the track rolling radii for the balls 56, 58 are selected such that the rolling movement of the two sets of balls 56, 58 in each common retainer will be equalized so that the balls roll smoothly without slip thereby avoiding the potentially adverse effect of the different circumferential lengths of the cams 52, 54. The balls may be replaced by stepped rollers, Figs.7 and 8 (not shown) running on modified grooved tracks (90) in the driving discs 70.
GB1100871*[A 1970-04-23 1971-04-23 Cam drive mechanism Expired GB1328759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3131470A 1970-04-23 1970-04-23

Publications (1)

Publication Number Publication Date
GB1328759A true GB1328759A (en) 1973-09-05

Family

ID=21858766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1100871*[A Expired GB1328759A (en) 1970-04-23 1971-04-23 Cam drive mechanism

Country Status (9)

Country Link
US (1) US3659971A (en)
AT (1) AT320368B (en)
CA (1) CA949809A (en)
CH (1) CH522816A (en)
DE (1) DE2119698A1 (en)
FR (1) FR2090589A5 (en)
GB (1) GB1328759A (en)
NL (1) NL7105536A (en)
SE (1) SE369947B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE459437B (en) * 1987-09-10 1989-07-03 Hydro Pneumatic Ab AXIAL Piston Pump Of High Pressure Type With Cam Drive Mechanism
US5540563A (en) * 1994-09-16 1996-07-30 Sauer Inc. Unitary housing for double hydraulic unit
JPH10103443A (en) * 1996-09-30 1998-04-21 Harmonic Drive Syst Ind Co Ltd Linear motion converter
DE10124265B4 (en) * 2001-05-18 2015-10-29 Gustav Klauke Gmbh pump
JP3989334B2 (en) * 2002-08-23 2007-10-10 株式会社イワキ Double reciprocating bellows pump
DE102005009821B3 (en) * 2004-11-16 2006-07-20 Stefan Matuzic Hydraulic drive unit
DE102015002338A1 (en) 2015-02-24 2016-08-25 Stefan Matuzic Bicycle drive with hydraulic system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1177126A (en) * 1915-08-23 1916-03-28 Franz Miller Engine.
US1900284A (en) * 1929-08-06 1933-03-07 Herzmark Nicolas Air compressor
US2973137A (en) * 1959-01-19 1961-02-28 Garrett Corp Cam piston two-stage compressor
US3105415A (en) * 1960-09-30 1963-10-01 Bendix Corp Multi-piston prime mover
US3403668A (en) * 1966-04-04 1968-10-01 Schottler Henry Fluid transducer
US3482525A (en) * 1968-03-04 1969-12-09 Fluid Controls Inc Rotary pump or motor

Also Published As

Publication number Publication date
DE2119698A1 (en) 1971-11-04
CA949809A (en) 1974-06-25
US3659971A (en) 1972-05-02
SE369947B (en) 1974-09-23
CH522816A (en) 1972-05-15
NL7105536A (en) 1971-10-26
AT320368B (en) 1975-02-10
FR2090589A5 (en) 1972-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]