US3776203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable volume rotary vane pump having an integral opposed reciprocating piston internal combustion engine
Assignee: Individual
•
Filing: 1972-09-01
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Granted: 1973-12-04
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Expires: 1992-09-01
Abstract
Abstract The invention comprises variable volume rotary vane pump and integral opposed reciprocating piston internal combustion engine, which comprises a central housing through the ends of which pass a shaft, to each end of which is connected a piston housed within a cylinder, which together form an internal combustion engine. On the reciprocating shaft is rigidly mounted a cam follower engaging a cylindrical camming device coaxial with the shaft and having an endless camming groove in its internal cylindrical surface. To this camming device is attached a cylindrical sleeve which forms the inner ring of a variable volume rotary vane pump. The vane pump also comprises a unitary volume adjustment block slidably mounted within the ends of the central housing, with fluid inlet and outlet orifices in the top and bottom thereof. The internal combustion engine includes improved piston and cylinder head designs, and a secondary fluid injection system.
Inventors
- 👤 B Joyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:41
CPC Classifications
F; F01; F01B; F01B9/00; F01B9/02; F01B9/026; F02; F02B; F02B71/00; F02B71/04; F02B75/00; F02B75/04; F02B75/16; F02B75/18; F02B75/24; F02B75/246; F04; F04C; F04C15/00; F04C15/0057; F04C15/008; F02B75/02; F02B2075/022; F02B2075/025
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
174 words
An apparatus for converting reciprocal motion into rotary motion, comprising: a shaft slidably mounted for reciprocation parallel to its length; an internal combustion engine cylinder mounted at each end of said shaft with the piston of said cylinder connected to said shaft for reciprocal motion parallel to the length of said shaft; a cam follower extending radially from said shaft at a point located between said cylinders; an annular sleeve having a continuous camming groove formed in its internal cylindrical surface, said sleeve located coaxially to the axis of said shaft between the cylinders connected to the ends of said shaft, and said cam follower which extends radially from said shaft engaging the camming groove in the interior cylindrical surface of said sleeve; said camming groove having side camming surfaces which comprise dwell flats, the leading portion of said dwell flats positioned for contact by said cam follower when one of said pistons is at the beginning of its power stroke, for maintaining said one piston in its compression position for a dwell period.
Claim 2
Independent Claim
174 words
An apparatus for converting reciprocal motion into rotary motion, comprising: a shaft slidably mounted for reciprocation parallel to its length; an internal combustion engine cylinder mounted at each end of said shaft with the piston of said cylinder connected to said shaft for reciprocal motion parallel to the length of said shaft; a cam follower extending radially from said shaft at a point located between said cylinders; an annular sleeve having a continuous camming groove formed in its internal cylindrical surface, said sleeve located coaxially to the axis of said shaft between the cylinders connected to the ends of said shaft, and said cam follower which extends radially from said shaft engaging the camming groove in the interior cylindrical surface of said sleeve; said camming groove having side camming surfaces which comprise dwell flats, the leading portion of said dwell flats positioned for contact by said cam follower when one of said pistons is at the beginning of its power stroke, for maintaining said one piston in its compression position for a dwell period.
Claim 3
Dependent Claim
56 words
The apparatus of claim 1 wherein each of said pistons comprises a cylindrical block everywhere having an H-shaped cross-section, the major axis of said H-shaped cross-section parallel to the axis of said shaft, and an end of said shaft connected to the portion of said cylindrical block which forms the cross bar of said H-shaped cross-section.
Claim 4
Dependent Claim
30 words
The apparatus of claim 2, wherein each cylinder additionally comprises a cylinder head having a generally cylindrical portion which extends into the open combustion chamber portion of said engine cylinder.
Claim 5
Dependent Claim
64 words
The apparatus of claim 3, wherein the cylindrical portion of said cylinder head which extends into said engine cylinder has a surface which substantially pArallels the surface of the piston face portion of said H-shaped piston, so that said extending cylindrical portion of said head and said piston face portion cooperate to form a compressed combustion zone having substantially uniform thickness at maximum compression.
Claim 6
Dependent Claim
28 words
The apparatus of claim 4, wherein said extending cylindrical portion of said cylinder head has at least one passage therethrough into which extends means for igniting combustible gases.
Claim 7
Dependent Claim
177 words
The apparatus of claim 2, wherein each of said engine cylinders additionally comprises a fuel intake valve opening into said engine cylinder near the base of the engine cylinder below said piston; an intake passage extending from about the level of said intake valve, through the wall of the block in which said engine cylinder is bored, and connecting the upper portion of said engine cylinder at a point above the piston face of said piston when said piston is in its lowest position; and an exhaust port located in the side wall of said engine cylinder; and said piston having a port in the cylindrical flange which forms the lower side wall of said H-shaped cross-section, for operative alignment with the lower opening of said intake passage in the side wall of said engine cylinder; said piston also having a port therein in the cylindrical flange which forms the upper side wall of said H-shaped cross-section, extending into the piston face for operative alignment with the exhaust port in the side wall of said engine cylinder.
Claim 8
Dependent Claim
17 words
The apparatus of claim 6, additionally comprising means for injecting a second fluid into an engine cylinder.
Claim 9
Dependent Claim
25 words
The apparatus of claim 7, wherein said means comprises a fluid conduit terminating in a jet nozzle on the internal surface of a cylinder head.
Claim 10
Dependent Claim
15 words
The apparatus of claim 6, wherein said shaft has a cross-sectional shape which is polygonal.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |