US3572037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External combustion engine
Assignee: Individual
•
Filing: 1969-05-12
•
Granted: 1971-03-23
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Expires: 1989-05-12
Abstract
Abstract An external combustion engine is constructed with a rotatable housing having compression and expansion chambers and a stator mounted within the expansion chamber. The stator is provide with a helical crest, and the expansion chamber, an internal lining adapted to oppose cyclonic flow created by the crest. The inlet to the compression chamber is venturi in effect so that steam introduced directly to the chamber can draw other gases, such as combustion gases, into the chamber as well. Such gases may be relied upon to superheat the steam within the compression chamber.
Inventors
- 👤 Goerge C Sorensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:15
CPC Classifications
F; F01; F01D; F01D1/00; F01K; F01K21/00; F01K21/04; F02; F02B; F02B75/00; F02B75/28; F02G; F02G1/00; F02G1/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
139 words
An external combustion engine, comprising: a substantially conical rotary housing with a venturi inlet at its apex, an internal compression chamber directly beneath said apex in open communication with said inlet, and an expansion chamber in open communication with said compression chamber internal said housing beneath said compression chamber; a substantially conical frustum-shaped stator member mounted concentrically within said expansion chamber, including a helical crest on its outer surface to guide gases entering said expansion chamber into a cyclonic flow pattern; a lining secured to the interior surface of said expansion chamber adapted to oppose said cyclonic flow of gases through said expansion chamber; and a shaft rotatably mounted axially with said stator member and anchored to said housing so that when gas is introduced through said inlet, said housing is caused to rotate with respect to said stator.
Claim 2
Dependent Claim
139 words
An external combustion engine, comprising: a substantially conical rotary housing with a venturi inlet at its apex, an internal compression chamber directly beneath said apex in open communication with said inlet, and an expansion chamber in open communication with said compression chamber internal said housing beneath said compression chamber; a substantially conical frustum-shaped stator member mounted concentrically within said expansion chamber, including a helical crest on its outer surface to guide gases entering said expansion chamber into a cyclonic flow pattern; a lining secured to the interior surface of said expansion chamber adapted to oppose said cyclonic flow of gases through said expansion chamber; and a shaft rotatably mounted axially with said stator member and anchored to said housing so that when gas is introduced through said inlet, said housing is caused to rotate with respect to said stator.
Claim 3
Dependent Claim
38 words
An external combustion engine according to claim 1, including a shell member, sealably enclosing said venturi inlet; means for introducing combustion gases to the interior of said shell member; and means for introducing steam to said venturi inlet.
References Cited (Backward Citations)
FR339962A
Cited
US844824A
Cited
US863524A
Cited
US1297263A
Cited
US2867975A
Cited
US3143850A
Cited
US3192705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |