Gm Global Technolgoy Operations, Inc.

Constantinos A Koromilas

Nancy L Johnson

Alan L Browne

Geoffrey P McKnight

Gary Lee Jones

William B Barvosa-Carter

Bahram Khalighi

Jan Henning Aase

Edward D Moss

Leslie Momoda

Harlan W Charles

Tadge J Juechter

Thomas H Froling

Jeffrey M Pleune

Lawrence E Peruski

Franz K Schenkel

A scroll type compressor, according to the invention, comprises first and second scroll members each having an end plate and a scroll wall projecting from the end plate. The scroll members have their scroll walls interleaved with one another to define therebetween a compression chamber and upon relative orbiting movement between the scroll members the compression chamber migrates to compress a compressible medium. The scroll walls are each comprised of a plurality of alternating straight line wall portions and circular arc portions. The straight line wall portions can be modified to house a catalyst or a fluid port. Or the straight line sections may be telescopically extendible in length to thereby adjust the displacement of the compressor.

Scroll compressor with extended profile

A system for controlling fluid flow about a vehicle. The system comprises a fluid flow control device, an obstacle sensor for detecting obstacles, and a controller. The fluid flow control device has a body with at least one surface and an actuation means in operative communication with the surface. The actuation means is operative to alter at least one attribute of the fluid flow control device in response to a control signal. The controller has control logic for generating the control signal in response to the obstacle sensor.

Control logic for fluid flow control devices

A positive displacement rotary mechanism has four identical rotary helical intermeshing lobes that cooperate with a stationary cylindrical member extending centrally thereof to define repetitive working space internal of the lobes having boundaries along and between the lobes and along and between the lobes and the cylindrical member which boundaries move on rotation of the lobes to effect expansion and contraction of the working space while repetitively moving same from one of the ends of the lobes toward their other end.

Positive displacement rotary mechanism

A positive displacement rotary mechanism has three and alternatively four identical rotary helical intermeshing lobes of continuously varying pitch that cooperate with a stationary cylindrical member extending centrally thereof to define a repetitive working space internal of the lobes having boundaries along and between the lobes and along and between the lobes and the cylindrical member which boundaries move on rotation of the lobes to effect expansion and contraction of the working space while repetitively moving same from one of the ends of the lobes toward their other end.

A positive displacement rotary mechanism has three identical rotary helical intermeshing lobes that cooperate with a stationary cylindrical member extending centrally thereof to define a repetitive working space internal of the lobes having boundaries along and between the lobes and along and between the lobes and the cylindrical member which boundaries move on rotation of the lobes to effect expansion and contraction of the working space while repetitively moving same from one of the ends of the lobes toward their other end.

A positive displacement rotary mechanism has three and alternatively four identical rotary helical intermeshing lobes that cooperate with a stationary cylindrical member extending centrally thereof to define a repetitive working space internal of the lobes having boundaries along and between the lobes and along and between the lobes and the cylindrical member which boundaries move on rotation of the lobes to effect expansion and contraction of the working space while repetitively moving same from one of the ends of the lobes toward their other end.

Growing community of inventors

Utica, MI, United States of America

Constantinos A Koromilas