US 4,300,486 AGranted

Internal combustion engine system technical field

AssigneePurification Sciences Inc.

InventorFrank E. Lowther

Life of this patent

Estimating the term…

Loading patent…

Abstract

An internal combustion engine 10 wherein no compression function is carried out in the engine 10 and including a tank 30 of compressed air, a pressure regulator 34, a fuel injector 28, and means 40 and 42 for connecting the pressure regulator 34 and the fuel injector 28 to a foot pedal 38 for controlling air and fuel feed to the combustion chambers 22 in response to throttle demand. The engine can use spark or compression ignition and can provide full expansion. Compressed air can be generated more efficiently using central station power with a vast savings in the amount of oil consumed. The internal combustion engine system of this invention is useful in all applications for such engines including vehicles such as automobiles, trucks, locomotives, marine applications, airplanes, etc. as well as non-vehicle use.

Claims15

Dependent claims

(A) An internal combustion engine including a least one piston-cylinder-combustion chamber system;

(B) Means for operating said system to provide strokes consisting of an exhaust stroke, an intake stroke and a power stroke, with no compression stroke;
(C) A tank for storing oxygen containing compressed gas and a conduit for feeding compressed gas from said tank to said at least one combustion chamber;
(D) Means for controlling the flow of compressed gas from said tank through said conduit and to said at least one combustion chamber;
(E) Means for feeding fuel into said at least one combustion chamber;
and
(F) Means for igniting a compressed gas-fuel mixture in said at least one combustion chamber;
(G) Means for feeding ambient air into said at least one combustion chamber when said tank is empty;
and
(H) Means for compressing said ambient air in said at least one combustion chamber.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/029,884Filed 13 Apr 1979 · continuation in part
Priority: 16 Oct 1978
Granted: 17 Nov 1981
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

F02B 41/00
Engines characterised by special means for improving conversion of heat or pressure
F02B 3/08
With compression ignition: methods of operating
F02B 25/14
Engines characterised by using fresh charge for scavenging cylinders: using reverse-flow scavenging, e.g. with both outlet and inlet ports…
F02B 33/36
With rotary pumps: of positive-displacement type

Family

Serial951,383Parent of this continuation-in-part · filed 16 Oct 1978
Serial955,896Parent of this continuation-in-part · filed 30 Oct 1978
Serial955,895Parent of this continuation-in-part · filed 30 Oct 1978
Serial961,264Parent of this continuation-in-part · filed 16 Nov 1978
Serial970,320Parent of this continuation-in-part · filed 18 Dec 1978
Serial972,786Parent of this continuation-in-part · filed 26 Dec 1978
US 4,230,075 AParent of this continuation-in-part
US 4,215,659 AParent of this continuation-in-part
US 4,300,486 AThis patent

From the US filing history. Foreign family members aren’t listed.