US5111783A — Rotary valve system for internal combustion engin…

Claim 1

Independent Claim 180 words

A fuel intake and exhaust system for use with a four stroke engine of a type having an engine block formed with at least one piston cavity having an upper opening in the top surface of said block a piston having an upper surface reciprocating in said cavity toward and away from said upper opening, a crankshaft and a connecting rod secured to said piston and crankshaft, the improvement comprising: a housing disposed over said block and having an interior chamber formed with a lower opening located directly over said upper opening and said lower opening having approximately the same dimension as said upper opening; said housing formed with fuel intake and exhaust ports; a rotor shaft rotatably received in said chamber; a triangular rotor having first second and third surfaces carried by said shaft and movable therewith; means connecting said crankshaft to said rotor shaft for relative rotative movement therebetween; said first surface of said rotor spanning said upper opening at a particular rotative disposition of said rotor while isolating said intake and exhaust ports from said piston cavity.

Claim 2

Dependent Claim 180 words

A fuel intake and exhaust system for use with a four stroke engine of a type having an engine block formed with at least one piston cavity having an upper opening in the top surface of said block a piston having an upper surface reciprocating in said cavity toward and away from said upper opening, a crankshaft and a connecting rod secured to said piston and crankshaft, the improvement comprising: a housing disposed over said block and having an interior chamber formed with a lower opening located directly over said upper opening and said lower opening having approximately the same dimension as said upper opening; said housing formed with fuel intake and exhaust ports; a rotor shaft rotatably received in said chamber; a triangular rotor having first second and third surfaces carried by said shaft and movable therewith; means connecting said crankshaft to said rotor shaft for relative rotative movement therebetween; said first surface of said rotor spanning said upper opening at a particular rotative disposition of said rotor while isolating said intake and exhaust ports from said piston cavity.

Claim 3

Dependent Claim 37 words

The invention of claim 1 wherein a peripheral sidewall of said upper opening, said first rotor surface, and the upper surface of said piston form a combustion chamber; and spark inducing means located in said combustion chamber.

Claim 4

Dependent Claim 21 words

The invention of claim 2 wherein said interior chamber is epitrochoidal and said triangular rotor is formed with three rounded tips.

Claim 5

Dependent Claim 15 words

The invention of claim 3 wherein drive means moves said rotor in an epitrochoidal path.

Claim 6

Dependent Claim 43 words

The invention of claim 4 wherein said means connecting said crankshaft with said drive shaft are dimensioned to cause said first rotor surface and said upper surface of said piston to be near their minimum distance from one another when spark activation occurs.

Claim 7

Dependent Claim 172 words

A fuel intake and exhaust system for use with a four stroke engine of a type having an engine block formed with at least one cylindrical piston cavity having a circular upper opening in the top surface of said block and the diameter of said opening being the same as the diameter of said cavity, a piston having an upper surface reciprocating in said cavity toward and away from said upper opening, a crankshaft and a connecting rod secured to said piston and said crankshaft, the improvement comprising: a triangular rotor having three surfaces each of a dimension sufficient to cover said opening means disposed over said block for housing said rotor; second means for driving said rotor in an epitrochoidal path; a fuel intake port; a spent gas exhaust port; third means for timing said rotor movement to sequentially communicate said intake port to said piston cavity, seal said cavity from said intake and exhaust ports and to communicate said cavity to said exhaust port while isolating the intake port therefrom.

Claim 8

Dependent Claim 172 words

A fuel intake and exhaust system for use with a four stroke engine of a type having an engine block formed with at least one cylindrical piston cavity having a circular upper opening in the top surface of said block and the diameter of said opening being the same as the diameter of said cavity, a piston having an upper surface reciprocating in said cavity toward and away from said upper opening, a crankshaft and a connecting rod secured to said piston and said crankshaft, the improvement comprising: a triangular rotor having three surfaces each of a dimension sufficient to cover said opening means disposed over said block for housing said rotor; second means for driving said rotor in an epitrochoidal path; a fuel intake port; a spent gas exhaust port; third means for timing said rotor movement to sequentially communicate said intake port to said piston cavity, seal said cavity from said intake and exhaust ports and to communicate said cavity to said exhaust port while isolating the intake port therefrom.

Claim 9

Dependent Claim 23 words

The invention of claim 6 wherein said second means includes a rotor shaft end a member connecting said crankshaft to said rotor shaft.

Claim 10

Dependent Claim 14 words

The invention of claim 7 wherein said third means is an epitrochoidal drive mechanism.

Claim 11

Dependent Claim 149 words

A fuel-air compression device comprising: an engine block having an upper surface and a cylindrical cavity formed in said block having an upper opening terminating in said upper surface; a piston; first shaft means to move said piston toward and away from said upper surface; a triangular rotor disposed over said opening; at least one planar surface on said rotor of a sufficient dimension to enclose said upper opening; second shaft means to move said planar surface downwardly toward said upper opening as said piston is moving upwardly toward said upper surface; third means to operatively connect said first and second shaft means; a housing having an epitrochoidal chamber formed therein for receiving said triangular rotor and said chamber having; a bottom opening disposed over said upper opening and having approximately the same dimension thereof; and, said second shaft means supports said rotor for rotative movement in said chamber.

Claim 12

Dependent Claim 149 words

A fuel-air compression device comprising: an engine block having an upper surface and a cylindrical cavity formed in said block having an upper opening terminating in said upper surface; a piston; first shaft means to move said piston toward and away from said upper surface; a triangular rotor disposed over said opening; at least one planar surface on said rotor of a sufficient dimension to enclose said upper opening; second shaft means to move said planar surface downwardly toward said upper opening as said piston is moving upwardly toward said upper surface; third means to operatively connect said first and second shaft means; a housing having an epitrochoidal chamber formed therein for receiving said triangular rotor and said chamber having; a bottom opening disposed over said upper opening and having approximately the same dimension thereof; and, said second shaft means supports said rotor for rotative movement in said chamber.

Claim 13

Dependent Claim 36 words

The invention of claim 9 wherein a spark inducing means is mounted in said housing for inducing a spark in said chamber when said piston and said planar surface are in close proximity to one another.

Claim 14

Dependent Claim 176 words

A compression and sequencing system for use with a four stroke internal combustion engine of a type having a cylinder, a reciprocating piston in said cylinder defining a chamber of varying volume, a crankshaft and a connecting rod between said piston and said crankshaft, said system comprising: a housing having an epitrochoidal shaped cavity and said housing having a bottom opening of substantially the same dimension as said cylinder and having an intake port and an exhaust port on either side of said bottom opening; a triangular shaped rotor supported in said cavity for epitrochoidal movement and said rotor having three substantially planar sides defining chambers with said epitrochoidal cavity and each of said planar sides being sufficiently large to seal said bottom opening when adjacent thereto; a rotor shaft carrying said rotor means to synchronize the movement between said crankshaft and said rotor shaft and to sequentially move one of said planar sides of said rotor to a sealing relationship across said bottom opening when said piston has reduced said varying volume to a minimum.

Claim 15

Dependent Claim 176 words

A compression and sequencing system for use with a four stroke internal combustion engine of a type having a cylinder, a reciprocating piston in said cylinder defining a chamber of varying volume, a crankshaft and a connecting rod between said piston and said crankshaft, said system comprising: a housing having an epitrochoidal shaped cavity and said housing having a bottom opening of substantially the same dimension as said cylinder and having an intake port and an exhaust port on either side of said bottom opening; a triangular shaped rotor supported in said cavity for epitrochoidal movement and said rotor having three substantially planar sides defining chambers with said epitrochoidal cavity and each of said planar sides being sufficiently large to seal said bottom opening when adjacent thereto; a rotor shaft carrying said rotor means to synchronize the movement between said crankshaft and said rotor shaft and to sequentially move one of said planar sides of said rotor to a sealing relationship across said bottom opening when said piston has reduced said varying volume to a minimum.

Claim 16

Dependent Claim 26 words

The invention of claim 11 wherein said means includes a belt connecting said rotor shaft and said crankshaft to move said rotor in an epitrochoidal path.

Claim 17

Dependent Claim 37 words

The invention of claim 12 wherein a spark inducing device is mounted in said housing and located in a manner to induce a spark in said chamber when of said planar sides is across said bottom opening.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-05-12	1995-11-11	1996-05-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-05-12	1999-11-11	2000-05-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-05-12	2003-11-11	2004-05-12	$7700.00	Window Closed / Lapsed

Rotary valve system for internal combustion engines

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