Frank M Lopez

US Patent:

49984110, Mar 12, 1991

Filed:

Dec 29, 1989

Appl. No.:

7/458609

Inventors:

Frank Lopez - Sierra Madre CA

International Classification:

F02G 1053

US Classification:

60517

Abstract:

An external heat engine has a piston mounted for movement between a first upper position and a second, lower position, a heater for heating a working gas to forcibly move the piston from the upper position to the lower position (power stroke), a crankshaft rotatable about a main axis, the piston and crankshaft being linked so that movement of the piston from the upper position to the lower position during the power stroke is transformed into rotational movement of the crankshaft during a first portion of one rotation of the crankshaft about the main axis. The piston moves from the lower position to the upper position during a second portion of one rotation of the crankshaft (compression stroke). The piston and crankshaft are linked by a disk, a piston rod connected to the piston and a connecting ring for rotatably supporting the disk. The disk is rotatable about its central moveable axis, and is connected to the crankshaft at a point offset from the disk's axis, for rotation about the disk's axis in response to rotation of the crankshaft about its main axis, the axis of the disk being disposed so that when the piston is in the upper position, the axis of the disk is substantially aligned with the main axis of the crankshaft during a third portion of one rotation of the crankshaft about the main axis.

US Patent:

48482960, Jul 18, 1989

Filed:

Nov 29, 1988

Appl. No.:

7/277485

Inventors:

Frank Lopez - Arcadia CA

International Classification:

F02B 5300

US Classification:

123242

Abstract:

A rotary internal combustion engine comprises a cylindrical casing and a cylindrical rotor. Several stepped crankshafts rotatably connected to the rotor pass through the ends of the casing, thereby confining motion of the rotor to orbital motion. Radial vanes extend from an axial shaft in the casing to the inner surface of the casing wall and form seals against the casing. Combustion chambers are formed between adjacent vanes. Intake, exhaust, and ignition systems provide a combustion cycle for each chamber as the rotor orbits.