David J Andres

US Patent:

55093884, Apr 23, 1996

Filed:

Dec 30, 1994

Appl. No.:

8/366825

Inventors:

David C Andres - Berkeley CA

International Classification:

F02B 5300

US Classification:

123231

Abstract:

A rotary engine includes a cylindrical rotor having four spaced apart vanes therein mounted in a stator housing having an oblong perimeter casing which defines generally crescent shaped, diametrically opposite first and second working chambers in which the rotor vanes travel. Inlet and outlet ports are disposed at respective ends of the working chambers, and a flow chamber is joined to the casing between the working chambers. The flow chamber temporarily stores compressed fluid from the first working chamber and discharges it into the second working chamber wherein combustion takes place for rotating the rotor.

US Patent:

55712444, Nov 5, 1996

Filed:

Mar 11, 1996

Appl. No.:

8/613358

Inventors:

David C. Andres - Berkeley CA

International Classification:

F02B 5300

US Classification:

123231

Abstract:

A rotary engine includes a cylindrical rotor having four spaced apart vanes therein mounted in a stator housing having an oblong perimeter casing which defines generally crescent shaped, diametrically opposite first and second working chambers in which the rotor vanes travel. Inlet and outlet ports are disposed at respective ends of the working chambers, and a flow chamber is joined to the casing between the working chambers. The vanes have tip apertures supplied with pressurized fluid to provide bearings with the casing.

US Patent:

58821830, Mar 16, 1999

Filed:

Mar 21, 1997

Appl. No.:

8/822217

Inventors:

David Christopher Andres - Berkeley CA

Assignee:

Triple Aught, LLC - Berkeley CA

International Classification:

F01C 1344
F01C 1900

US Classification:

418 92

Abstract:

A rotary machine vane includes a body and an articulated tip pivotally joined thereto. The body is complementary with a slot of a rotor in which it is mountable for radial reciprocation therein. The body includes an arcuate cradle extending axially along a radially outer end thereof. The vane tip includes a pin and an integral plate extending along the pin for facing a casing surrounding the rotor to form a seal therewith. The pin is complementary to the cradle for defining a radial gap therebetween, and is radially outwardly retained by the cradle for rocking movement therein for self-alignment with the casing.