Patent US3669203A successfully refreshed from Google Patents.
US3669203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooling apparatus for automotive engine
Assignee: Honda Motor Co Ltd
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Filing: 1969-07-31
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Granted: 1972-06-13
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Expires: 1989-07-31
Abstract
Abstract A vehicle is provided which has an engine space having an opening arrangement for the admission of air when the vehicle is in motion. Air moves into the engine space along a determinable passage. An engine is arranged in the engine space in intercepting relationship with the passage to be cooled by air flowing therethrough. The engine includes a double wall exterior forming an air jacket into which air is forced under pressure by a blower in order to provide a second source of cooling for the engine. The double wall exterior includes inner and outer walls connected by heat transmitting plates and provided with cooling fins. The air jacket is connected to a passenger space into which heated air is admitted by a shut-off valve. The engine may have cylinders arranged either longitudinally or laterally of the vehicle and the forced air cooling may be provided in such a manner as to be in opposite direction to the natural cooling through the aforesaid space.
Inventors
- 👤 Soichiro Honda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:25
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/28; F02F1/30; F02F1/32; F01; F01P; F01P1/00; F01P1/02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02B75/02; F02B2075/022; F02B2075/027; F02B2075/1804; F02B2075/1812
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
189 words
A vehicle comprising means defining an engine space having an opening arrangement to admit air when the vehicle is in motion, the air moving into the space along a passage therefor, an engIne in said space in intercepting relationship with said passage to be cooled by air flowing in said passage, said engine including a double wall exterior forming an air jacket, said double wall exterior including inner and outer walls and heat transmitting plates connected to both walls to join the same together, means having an inlet opening removed and offset from said passage to provide forced air flow through said jacket for further cooling of the engine, means defining a vehicle space for passengers, said engine including vertical cylinders, said jacket having an inlet opening at the bottom thereof and an outlet opening at the top thereof, said jacket having separate side passages formed by said plates, the cooling air traveling upwardly in the jacket through said side passages around the cylinders, the outlet opening of the jacket merging with the side passages, and a duct connecting said outlet opening of the jacket with said vehicle space.
Claim 2
Dependent Claim
189 words
A vehicle comprising means defining an engine space having an opening arrangement to admit air when the vehicle is in motion, the air moving into the space along a passage therefor, an engIne in said space in intercepting relationship with said passage to be cooled by air flowing in said passage, said engine including a double wall exterior forming an air jacket, said double wall exterior including inner and outer walls and heat transmitting plates connected to both walls to join the same together, means having an inlet opening removed and offset from said passage to provide forced air flow through said jacket for further cooling of the engine, means defining a vehicle space for passengers, said engine including vertical cylinders, said jacket having an inlet opening at the bottom thereof and an outlet opening at the top thereof, said jacket having separate side passages formed by said plates, the cooling air traveling upwardly in the jacket through said side passages around the cylinders, the outlet opening of the jacket merging with the side passages, and a duct connecting said outlet opening of the jacket with said vehicle space.
Claim 3
Dependent Claim
21 words
A vehicle as claimed in claim 1 wherein the means to provide forced air flow through the jacket includes a blower.
Claim 4
Dependent Claim
13 words
A vehicle as claimed in claim 2 comprising cooling fins on said walls.
Claim 5
Dependent Claim
20 words
A vehicle as claimed in claim 2 wherein the engine cylinders are in an alignment arranged longitudinally of the vehicle.
Claim 6
Dependent Claim
53 words
A vehicle as claimed in claim 4 wherein the air jacket has an inlet opening coupled to said blower, and an outlet open is disposed forwardly of the inlet opening so that the engine is cooled by air flowing through the jacket in opposite direction to the flow of air in said passage.
Claim 7
Dependent Claim
20 words
A vehicle as claimed in claim 2 wherein the engine cylinders are in an alignment arranged laterally of the vehicle.
Claim 8
Dependent Claim
18 words
A vehicle as claimed in claim 1 comprising a shut-off valve between said air jacket and vehicle space.
Claim 9
Dependent Claim
64 words
A vehicle as claimed in claim 1 wherein said inlet opening is divided into two side spaces leading to said side passages, said jacket having a central passage joined to said side passages and leading to said outlet opening whereby the cooling air flows upwardly as streams through the side spaces which then meet in the central passage and flow to the outlet opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |