US 6,129,067 AGranted

Rotary engine

OwnerThomas Rileyinventor

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Abstract

An improved rotary engine (12), wherein the improvement comprises a facility (58) for transferring any remaining exhaust gases from a first center well (16) in a housing (14) of the engine (12) into a cavity (34) of a second rotor (32) in a second well (18) in the housing (14) during the expansion cycle. An assembly (62) is for purging any remaining exhaust gases from the cavity (34) of the second rotor (32) in the second well (18) back into an air intake port (44) in the housing (14). An assembly (70) is for ejecting the compression of any fresh air and trapped exhaust gases into an exhaust port (48) in the housing (14) during the meshing of a piston (28) on a first rotor (26) in the first center well (16), with a cavity in a third rotor (38) in a third well (22) in the housing (14). A unit (78) is for drawing fresh air from the air intake port (44) into the cavity (40) in the third rotor (38), when the piston (28) of the first rotor (26) starts to exit from the cavity (40) in the third rotor (38).

Claims16

Dependent claims

In an improved rotary engine of the type having a housing with a first center well, a secondary well communicating with a first side of the first center well and a third well communicating with a second side of the first center well, a first rotor with two evenly spaced apart pistons on a first output shaft rotatably mounted in the first center well, a second rotor having two evenly spaced apart cavities on a second alignment shaft rotatably mounted in the second well, a third rotor having two evenly spaced apart cavities on a third alignment shaft rotatably mounted in the third well, an air intake port in the housing communicating with the first center well adjacent to the second side thereof, a fuel injection port in the housing communicating with the first center well adjacent to the air intake port, an exhaust port communicating with the first center well adjacent to the second side thereof opposite from the air intake port, a fuel firing spark plug communicating with said second well adjacent to the first side of the first center well and three gears for operatively connecting the three shafts together for holding the pistons of the first rotor in the first center well in mesh with the cavities in the second and third rotors, wherein the improvement comprises:

means for transferring any remaining exhaust gases from the first center well into a cavity of the second rotor in the second well during the expansion cycle
a) said transferring means includes a plurality of expansion exchange tubes in the housing communicating between the first center well and the second well on the first side opposite from the air intake port;
and
b) means for purging any remaining exhaust gases from the cavity of the second rotor in the second well back into the air intake port.

1 more element

In an improved rotary engine of the type having a housing with a first center well, a second well communicating with a first side of the first center well and a third well communicating with a second side of the first center well, a first rotor with two evenly spaced apart pistons on a first output shaft rotatably mounted in the first center well, a second rotor having two evenly spaced apart cavities on a second alignment shaft rotatably mounted in the second well, a third rotor having two evenly spaced apart cavities on a third alignment shaft rotatably mounted in the third well, an air intake port in the housing communicating with the first center well adjacent to the second side thereof, a fuel injection port in the housing communicating with the first center well adjacent to the air intake port, an exhaust port communicating with the first center well adjacent to the second side thereof opposite from the air intake port, a fuel firing spark plug communicating with said second well adjacent to the first side of the first center well and three gears for operatively connecting the three shafts together for holding the pistons of the first rotor in the first center well in mesh with the cavities in the second and third rotors, wherein the improvement comprises:

a) means for transferring any remaining exhaust gases from the first center well into a cavity of the second rotor in the second well during the expansion cycle;
b) said transferring means includes a plurality of expansion exchange tubes in the housing communicating between the first center well and the second well on the first side opposite from the air intake port;
and
c) means for purging any remaining exhaust gases from the cavity of the second rotor in the second well back into the air intake port.

1 more element

Dependencies are inferred from the claim text.