WO2008043080B1 - Mechanisms for conversion between reciprocating linear motion and rotational motion - Google Patents

Mechanisms for conversion between reciprocating linear motion and rotational motion

Info

Publication number
WO2008043080B1
WO2008043080B1 PCT/US2007/080612 US2007080612W WO2008043080B1 WO 2008043080 B1 WO2008043080 B1 WO 2008043080B1 US 2007080612 W US2007080612 W US 2007080612W WO 2008043080 B1 WO2008043080 B1 WO 2008043080B1
Authority
WO
WIPO (PCT)
Prior art keywords
axis
converter
roller
along
gas
Prior art date
Application number
PCT/US2007/080612
Other languages
French (fr)
Other versions
WO2008043080A3 (en
WO2008043080A2 (en
Inventor
Bradley L Raether
Original Assignee
Wavetech Engines Inc
Bradley L Raether
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 Wavetech Engines Inc, Bradley L Raether filed Critical Wavetech Engines Inc
Priority to CA002664556A priority Critical patent/CA2664556A1/en
Priority to JP2009531629A priority patent/JP5090456B2/en
Priority to AU2007303049A priority patent/AU2007303049B2/en
Priority to MX2009003524A priority patent/MX2009003524A/en
Priority to CN2007800370149A priority patent/CN101523084B/en
Priority to EP07853809.7A priority patent/EP2069622A4/en
Priority to BRPI0719946-5A priority patent/BRPI0719946A2/en
Publication of WO2008043080A2 publication Critical patent/WO2008043080A2/en
Publication of WO2008043080A3 publication Critical patent/WO2008043080A3/en
Publication of WO2008043080B1 publication Critical patent/WO2008043080B1/en

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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
    • 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
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating

Abstract

Mechanisms for conversion between reciprocating linear motion and rotational motion include a wave-shaped track and structure that reciprocates and rotates as it follows the wave-shaped track.

Claims

AMENDED CLAIMS [received by the International Bureau on 29 September 2008 (29.09.2008)]
26. A method for producing torque from the expansion of a gas, comprising: providing: a closed expandable volume having an end configured to move along a first axis, a converter configured to move along the first axis with the end, and a roller mounted on the converter and configured to rotate about a second axis transverse to the first axis; constraining movement of the converter such that the converter rotates about the first axis in a circumferential direction when the converter moves along the first axis; rotating the converter in the circumferential direction such that the converter and the end move along the first axis in a first axial direction, the volume of the closed expandable volume thereby contracting, with the roller rolling along a contact surface and rotating in a rotation direction about the second axis as the converter moves along the first axis in the first axial direction, the contact surface extending circumferential Iy about the first axis; and allowing a gas contained within the closed expandable volume to expand therein, the expanding gas driving the end and the converter along the first axis in a second axial direction opposite to the first axial direction such that the converter rotates about the first axis in the circumferential direction, with the roller rolling along the contact surface and rotating in the rotation direction about the second axis as the converter moves along the first axis in the second axial direction.
27. The method of claim 26, further comprising: providing a rotator configured to rotate about the first axis in the circumferential direction with the converter; and rotating the rotator about the first axis in the circumferential direction such that the converter rotates about the first axis in the circumferential direction.
28. The method of claim 27, wherein the converter rotating about the first axis in the circumferential direction when the converter moves along the first axis in the second axial direction rotates the rotator about the first axis in the circumferential direction.
24
29. The method of claim 27, further comprising providing a shaft configured to rotate about a third axis transverse to the first axis, wherein rotation of the rotator about the first axis causes the shaft to rotate about the third axis.
30. The method of claim 26, wherein the gas is a first gas and the method further comprises compressing a second gas within the closed expandable volume when the volume of the closed expandable volume contracts.
31. The method of claim 30, further comprising combusting the second gas when it is compressed to produce the first gas.
32. The method of claim 26, wherein the gas is a pressurized fluid.
33. The method of claim 26, wherein the roller is a first roller, the rotation direction is a first rotation direction, and the method further comprises providing a second roller mounted on the converter and configured to rotate about a third axis parallel to the second axis, the second roller rotating in a second rotation direction opposite to the first rotation direction when the first roller rotates in the first rotation direction.
34. The method of claim 33, wherein the second roller is in rolling contact with the first roller.
35. The method of claim 33, wherein the contact surface is a first contact surface and the second roller rolls along a second contact surface extending circumferentially about the first axis, with the second roller rotating in the second rotation direction when the converter moves along the first axis in the first axial direction and when the converter moves along the first axis in the second axial direction.
36. The method of claim 35, wherein the first and second contact surfaces define a continuous undulating track circumscribing a circular profile and generally defining a cylindrical volume oriented along and centered on the first axis.
37. The method of claim 35, wherein the second contact surface opposes and is spaced from the first contact surface.
38. The method of claim 26, further comprising preventing the end from rotating about the first axis when the converter rotates about the first axis.
39. A method for producing torque from a pressurized gas, comprising: rotating a rotator about a first axis in a circumferential direction and within a cylinder extending circumferentially around the first axis; rolling a roller along a first portion of a contact surface on the cylinder, the contact surface having the first portion and a second portion and extending circumferentially and continuously about the first axis, the roller moving in a first axial direction parallel to the first axis as the roller rolls along the first portion of the contact surface while rotating in a rotation direction about a second axis passing through the roller; moving an end of a closed expandable volume in the first axial direction with the roller, the volume of the closed expandable volume thereby contracting; allowing a gas contained within the closed expandable volume to expand within the contracted closed expandable volume to move the end of the closed expandable volume in a second axial direction opposite to the first axial direction, the volume of the closed expandable volume thereby expanding; moving the roller in the second axial direction with the end of the closed expandable volume, the roller rotating about the second axis in the rotation direction while rolling along the second portion of the contact surface; and rotating the rotator about the first axis in the circumferential direction with the roller as the roller rolls along the second portion of the contact surface.
40. The method of claim 39, wherein the second axis is perpendicular to the first axis.
41. The method of claim 39, wherein the end moves along the first axis and the cylinder is coaxially aligned with the closed expandable volume.
26
42. The method of claim 39, wherein the gas is a first gas and the method further comprises compressing a second gas within the closed expandable volume when the volume of the closed expandable volume contracts.
43. The method of claim 42, further comprising combusting the second gas when it is compressed to produce the first gas.
44. The method of claim 39, wherein the gas is a pressurized fluid.
45. The method of claim 39, wherein the roller is a first roller, the rotation direction is a first rotation direction, the contact surface is a first contact surface, and the method further comprises rolling a second roller along a second contact surface on the cylinder when the first roller is rolled along the first contact surface, the second contact surface extending circumferentially about the first axis and spaced from and opposed to the first contact surface, the second roller rotating in a second rotation direction about a third axis passing through the second roller when the first roller rotates in the first rotation direction, and the second rotation direction is opposite to the first rotation direction.
46. The method of claim 45, wherein the second roller is in rolling contact with the first roller.
47. The method of claim 39, wherein the contact surface has a wave shape.
48. The method of claim 39, further comprising preventing the end from rotating about the first axis when the rotator rotates about the first axis.
27
49. A method for producing a reciprocating force from a torque, comprising: providing: a converter configured to rotate about and move along a first axis, and a roller disposed on the converter and configured to rotate relative to the converter about a second axis transverse to the first axis; constraining movement of the converter such that the converter reciprocates along the first axis as it rotates about the first axis; rotating the converter about the first axis in a first rotational direction such that the converter reciprocates along the first axis; and rotating the roller about the second axis in a second rotational direction as the converter reciprocates along the first axis.
50. The method of claim 49, wherein the roller is a first roller and the method further comprises: providing a second roller disposed on the converter and configured to rotate relative to the converter about a third axis parallel to the second axis; and providing a continuous undulating track defined by a first surface and a second surface opposing and spaced from the first surface, wherein the first roller is in rolling contact with and rolls along the first surface as the converter reciprocates along the first axis, the second roller is in rolling contact with and rolls along the second surface as the converter reciprocates along the first axis, the second roller rotates in a third rotational direction opposite to the second rotational direction as the converter reciprocates along the first axis, and the undulating track constrains the movement of the converter such that the converter rotates about the first axis as it moves along the first axis.
51. The method of claim 49, further comprising: providing a closed shrinkable volume having an end configured to move along the first axis; providing a fluid within the closed shrinkable volume; and rotating the converter about the first axis in the first rotational direction such that the converter moves the end along the first axis and into the closed shrinkable volume to compress the fluid within the closed condensable volume.
28
52. A reciprocating engine, comprising: a converter configured to reciprocate along a linear axis, wherein the converter is configured to move in a first direction in response to a driving force and to move in a second direction opposite the first direction in response to a restoring force; a motional restraint on the converter, wherein the motional restraint is configured to cause the converter to rotate about the axis in a first rotational direction when the converter reciprocates along the axis, and the motional restraint is configured to cause the converter to reciprocate along the axis when the converter rotates about the axis in the first rotational direction; and a roller disposed on the converter and in rolling contact with a continuous surface, wherein the surface extends around the axis, the roller is configured to rotate in a second rotational direction as the roller rolls along the surface when the converter moves in the first direction and when the converter moves in the second direction.
53. The engine of claim 52, further comprising: a cylinder oriented along the axis; a piston configured to reciprocate along the axis and within the cylinder, wherein the piston is coupled to the converter such that the converter moves along the axis when the piston moves along the axis; and wherein the driving force comprises an expanding gas within the cylinder that acts on the piston.
54. The engine of claim 53, wherein the expanding gas is caused by combustion within the cylinder.
55. The engine of claim 53, wherein the expanding gas is a pressurized fluid.
29
56. The engine of claim 52, further comprising a cylinder oriented along the axis, wherein the surface is a first surface, the motional restraint comprises a continuous undulating track extending around the cylinder, and the undulating track is defined by the first surface and a second surface opposing and spaced from the first surface.
57. The engine of claim 56, wherein the roller is a first roller, the engine further comprises a second roller disposed on the converter and in rolling contact with the second surface, and the second roller is configured to rotate in a third rotational direction opposite to the second rotational direction as the second roller rolls along the second surface when the converter moves in either the first direction or the second direction.
58. The engine of claim 57, wherein the first and second rollers are in rolling contact with each other.
59. The engine of claim 52, further comprising an output shaft that is rotationally coupled to the converter, wherein the axis is a first axis, and the output shaft is configured to rotate about a second axis transverse to the first axis when the converter rotates about the first axis.
30
PCT/US2007/080612 2006-10-07 2007-10-05 Mechanisms for conversion between reciprocating linear motion and rotational motion WO2008043080A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002664556A CA2664556A1 (en) 2006-10-07 2007-10-05 Mechanisms for conversion between reciprocating linear motion and rotational motion
JP2009531629A JP5090456B2 (en) 2006-10-07 2007-10-05 Conversion mechanism between reciprocating linear motion and rotational motion
AU2007303049A AU2007303049B2 (en) 2006-10-07 2007-10-05 Mechanisms for conversion between reciprocating linear motion and rotational motion
MX2009003524A MX2009003524A (en) 2006-10-07 2007-10-05 Mechanisms for conversion between reciprocating linear motion and rotational motion.
CN2007800370149A CN101523084B (en) 2006-10-07 2007-10-05 Mechanisms for conversion between reciprocating linear motion and rotational motion
EP07853809.7A EP2069622A4 (en) 2006-10-07 2007-10-05 Mechanisms for conversion between reciprocating linear motion and rotational motion
BRPI0719946-5A BRPI0719946A2 (en) 2006-10-07 2007-10-05 MECHANISM TO FACILITATE CONVERSION BETWEEN ALTERNATING LINEAR MOVEMENT AND ROTATOR MOVEMENT

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/544,817 US7360521B2 (en) 2005-10-07 2006-10-07 Reciprocating engines
US11/544,817 2006-10-07

Publications (3)

Publication Number Publication Date
WO2008043080A2 WO2008043080A2 (en) 2008-04-10
WO2008043080A3 WO2008043080A3 (en) 2008-10-16
WO2008043080B1 true WO2008043080B1 (en) 2008-12-11

Family

ID=39269256

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/080612 WO2008043080A2 (en) 2006-10-07 2007-10-05 Mechanisms for conversion between reciprocating linear motion and rotational motion

Country Status (10)

Country Link
US (1) US7360521B2 (en)
EP (1) EP2069622A4 (en)
JP (1) JP5090456B2 (en)
KR (1) KR20090077818A (en)
CN (2) CN101523084B (en)
AU (1) AU2007303049B2 (en)
BR (1) BRPI0719946A2 (en)
CA (1) CA2664556A1 (en)
MX (1) MX2009003524A (en)
WO (1) WO2008043080A2 (en)

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Also Published As

Publication number Publication date
JP5090456B2 (en) 2012-12-05
EP2069622A2 (en) 2009-06-17
EP2069622A4 (en) 2014-01-01
MX2009003524A (en) 2009-06-08
WO2008043080A3 (en) 2008-10-16
AU2007303049B2 (en) 2012-07-05
JP2010506090A (en) 2010-02-25
CN101523084A (en) 2009-09-02
CN102748133A (en) 2012-10-24
US20070079791A1 (en) 2007-04-12
CN101523084B (en) 2012-07-18
WO2008043080A2 (en) 2008-04-10
BRPI0719946A2 (en) 2014-04-22
KR20090077818A (en) 2009-07-15
AU2007303049A1 (en) 2008-04-10
US7360521B2 (en) 2008-04-22
CA2664556A1 (en) 2008-04-10

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