US 2007/0039323 A1 · Steam enhanced double piston cycle engine

Abstract

A steam enhanced dual piston cycle engine utilizes a unique dual piston apparatus that includes: a first cylinder housing a first piston therein, wherein the first piston performs only intake and compression strokes; a second cylinder housing an inner power piston that forms an inner internal chamber of the second cylinder, and either a ring-shaped outer power piston surrounding the inner power piston, wherein the outer power piston forms an outer internal chamber of the second cylinder and is configured to convert engine heat into additional work, and/or an outer boiler which is configured to produce steam to be converted into additional work.

Claims26

Dependent claims

A dual piston apparatus for use in a combustion engine, comprising:

a first cylinder housing a first piston therein, wherein the first piston performs only intake and compression strokes;
a second cylinder housing a second piston therein, wherein the second piston performs only power and exhaust strokes;
and
a third piston also contained in the second cylinder and coupled to the second piston, wherein the third piston utilizes heat energy generated by the second piston to perform additional power strokes.

1 more element

A dual piston apparatus for use in a combustion engine, comprising:

a first cylinder housing a first piston therein, wherein the first piston performs only intake and compression strokes, wherein the first piston comprises:
a disc-shaped inner compression piston forming an inner internal chamber of the first cylinder;
a ring-shaped outer compression piston, coupled to and surrounding the disc-shaped inner compression piston, wherein said outer compression piston forms an outer internal chamber of the first cylinder;
and
a second cylinder housing a second piston therein, wherein the second piston performs only power and exhaust strokes.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/406,160Filed 18 Apr 2006

Priority

11 Mar 2005

Published

22 Feb 2007

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

F02B 75/282
Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders: the pistons having equal strokes
F01B 7/14
With oppositely reciprocating pistons: acting on different main shafts
F02G 5/02
Profiting from waste heat of combustion engines, not otherwise provided for: profiting from waste heat of exhaust gases
F02B 25/10
Engines with oppositely-moving reciprocating working pistons: with one piston having a smaller diameter or shorter stroke than the other

Family

Application60/661,195Us provisional application · filed 11 Mar 2005

Application60/672,421Us provisional application · filed 18 Apr 2005

Application11/371,827Continuation in part · filed 9 Mar 2006

Application11/406,160Continuation in part · filed 18 Apr 2006

US 2006/0243228 A1Published application

US 7,273,023 B2Related patent

US 7,383,797 B2Related patent

US 2007/0039323 A1This patent

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

Steam enhanced double piston cycle engine

Life of this patent

Steam enhanced double piston cycle engine

Life of this patent

Abstract

Claims26