EP0210262A1 - Moteur alternatif a arbre axial - Google Patents

Moteur alternatif a arbre axial

Info

Publication number
EP0210262A1
EP0210262A1 EP19860901296 EP86901296A EP0210262A1 EP 0210262 A1 EP0210262 A1 EP 0210262A1 EP 19860901296 EP19860901296 EP 19860901296 EP 86901296 A EP86901296 A EP 86901296A EP 0210262 A1 EP0210262 A1 EP 0210262A1
Authority
EP
European Patent Office
Prior art keywords
pistons
shaft
piston
cylinders
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.)
Withdrawn
Application number
EP19860901296
Other languages
German (de)
English (en)
Inventor
Robert Charles Cahill
Lyn Vickery
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 EP0210262A1 publication Critical patent/EP0210262A1/fr
Withdrawn legal-status Critical Current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
    • F01B3/04—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
    • 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
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F01B7/04—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on same main shaft
    • 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
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/06—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces

Definitions

  • AXIAL SHAFT PISTON ENGINE This invention relates to a mechanism which may be used as an internal combusion piston engine or positive displacement piston pump or compressor -in which the output shaft is co-axial with the pistons and in which the reciprocating movement of the pistons is transformed into rotational movement of the shaft (and vice versa) by means of one or more cylinder cams mounted on the shaft and acting with rollers attached to the pistons.
  • the objects of this invention are to reduce physical size for a given capacity, simplify the manufacture of the major structural parts, reduce the number of parts, simplify the balancing of reciprocating masses, and increase mechanical efficiency.
  • the objects of this invention are achieved by arranging the pistons and shaft co-axially, with the shaft running through the centre of the pistons.
  • the pistons and cylinders are arranged such that the pistons move inwards and outwards in their cylinders concurrently under the effects of the gas pressures in the combustion chambers and act, via rollers mounted in a yoke attached to extensions of the pistons, on the cylinder cam which is mounted on, and forms part of, the axial output shaft. This in turn produces torque in the shaft.
  • FIGURES 1A, IB & 1 C show the mechanism as an internal combustion engine (see also schematic diagrams FIG 2 & 3).
  • a shaft (9) runs axially through the centres of the end caps and the pistons and carries a specially shaped cylinder cam (10) at its centre.
  • the cam (10) is straddled by double rollers (11)(12) & (1-0(13) (FIG IB) which are mounted in yokes (2 ) & (25) attached to an extension of each piston (1) & (2), thus causing the pistons to reciprocate longtitudinally as the shaft (9) and cam (10) rotate.
  • FIGURES 2 & 3 are schematic representations of the mechanism.
  • the fuel air mixture enters, via a carburettor and valve (16) FIG 2, into the 50 space (15) formed by the pistons around the cam as the pistons move outward. Movement of the pistons inward due to the further rotation of the cam results in the valve (16) closing and the fuel air mixtures starts to compress in space (15).
  • the induction port (17) is uncovered by the pistons and the pressurised charge transfers from the space (15), via the transfer ports (18) into the combustion chambers (7) _c (8).
  • the spark plug (20) ignites the fuel thus causing a gO pressure build up in the combustion chambers (7) & (8) and the pistons to be forced inwards. This imparts a force to the cam (10) via the rollers (11) & (13) and causes the cam to rotate and impart torgue to the shaft (9).
  • Torque reaction on the pistons (1) & (2) is opposed by flat linear roller bearings (27) acting between the piston yokes (24) & (25) FIGURE ⁇ forming part of the piston extension, and the centre section engine casing, (26) FIG 4.
  • FIG 6. shows a four lobe cylinder cam which will give two inward and two outward strokes of the pistons (1) & (2) per revolution when mounted on th shaft (9) in place of the two lobe cam - FIG 5. This will provide two power
  • FIGURE 7 depicts one end i.e. one pumping chamber for simplicity.
  • the shaft (9) When the shaft (9) is turned by external means, the cylinder cam (10) rotates and causes the psitons (1) & (2), by means of the rollers (12) & (14), to move inwards and draw fluid (gaseous or liquid) through the valve (21) into the annular space (7). Further rotation of the shaft (9) causes the pistons (1) & (2) 90 by means of the rollers (11) & (13) to move inwards and force the fluid from the space (7) out of the valve (22).
  • a further application of this configuration would have one chamber used as an internal combustion power producing piston engine (as in FIG 3) and the other chamber used as a pump.

Landscapes

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

Abstract

Dans un mécanisme pouvant être utilisé comme moteur à combustion interne, comme une pompe ou comme un compresseur volumétrique à pistons, l'arbre secondaire (9) est co-axial par rapport aux pistons (1, 2) et passe longitudinalement par le centre des pistons (1, 2). Le mouvement alternatif des pitons (1, 2) est transformé en un mouvement rotatif de l'arbre (9), et vice-versa, par une came cylindrique (10) montée sur l'arbre (9) et par des cylindres (11, 12, 13, 14) fixés à des protubérances de limitation du couple (24, 25) des pistons (1, 2). Lorsque les pistons (1, 2) sont poussés le long de cylindres opposés respectifs (3, 4) par la pression d'un gaz, les cylindres (11, 12, 13, 14) montés dans les protubérences (24, 25) agissent sur la came cylindrique (10), exerçent un couple sur la came (10) et provoquent ainsi la rotation de l'arbre (9). Inversement, dans la construction de pompage, un couple appliqué sur l'arbre (9) par des dispositifs extérieurs provoque le mouvement alternatif des pistons (1, 2) dans les cylindres (3, 4) et permet au mécanisme de fonctionner comme pompe, à l'aide d'un agencement de soupapes approprié.
EP19860901296 1985-01-31 1986-01-31 Moteur alternatif a arbre axial Withdrawn EP0210262A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU9094/85 1985-01-31
AU909485 1985-01-31
AU59085 1985-05-16
AU590/85 1985-05-16

Publications (1)

Publication Number Publication Date
EP0210262A1 true EP0210262A1 (fr) 1987-02-04

Family

ID=25608776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860901296 Withdrawn EP0210262A1 (fr) 1985-01-31 1986-01-31 Moteur alternatif a arbre axial

Country Status (2)

Country Link
EP (1) EP0210262A1 (fr)
WO (1) WO1986004637A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213549A (en) * 1987-12-10 1989-08-16 Kevin Wilcox Improvements in or relating to mechanisms for translating reciprocating motion into rotary motion and vice versa
DE3832141C2 (de) * 1988-03-15 1997-06-12 Kuehner Hubert Wälzlagerführung der Kolben von Axialkolbenmotoren
RU2002121075A (ru) * 2002-08-01 2004-02-27 Кут ев Андрей Алексеевич Механизм для преобразования поступательного перемещения во вращательное движение и наоборот

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR514067A (fr) * 1919-04-23 1921-03-02 Karl Axel Gilbert Forsberg Moteur à combustion interne
US1629686A (en) * 1926-08-12 1927-05-24 Dreisbach Motors Inc Engine
FR669007A (fr) * 1928-01-24 1929-11-09 Transformation mécanique d'un mouvement alternatif en mouvement de rotation
FR652281A (fr) * 1928-04-06 1929-03-06 Transformateur de mouvement alternatif rectiligne en mouvement continu rotatif entreautres applicable aux moteurs à explosions
DE513891C (de) * 1928-09-10 1930-12-08 Georges Alexis Lemaitre Luftverdichtungspumpe fuer schubstangenlose Mehrzylindermotore
FR730941A (fr) * 1932-02-03 1932-08-26 Moteur rotatif à gaz
US2316394A (en) * 1941-12-02 1943-04-13 Ransom Y Bovee Explosive type engine
US2347364A (en) * 1942-02-16 1944-04-25 Palumbo Vincent Cam member for engines or the like
DE1954631A1 (de) * 1969-10-30 1971-05-06 Thermodynamic Systems Inc Kolbenmaschine zum Betreiben als Kraftmaschine,Druckmittelmotor oder Pumpe
GB1450815A (en) * 1974-01-04 1976-09-29 Pleyyak J B Internal combustion devices
GB1563498A (en) * 1976-11-03 1980-03-26 Schreiber R Reciprocating piston engines having piston rotation
DE3247442A1 (de) * 1982-12-22 1984-09-27 Hermann 6050 Offenbach Fritz Ringkolbenmaschine, insbesondere verbrennungsmotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8604637A1 *

Also Published As

Publication number Publication date
WO1986004637A1 (fr) 1986-08-14

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Legal Events

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Effective date: 19870102