Patent US3918547A successfully refreshed from Google Patents.
US3918547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus with water-cooled rear engine
Assignee: Daimler Benz AG
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Filing: 1973-07-25
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Granted: 1975-11-11
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Expires: 1993-07-25
Abstract
Abstract A bus with a water-cooled rear engine in which the engine and radiator are laterally offset with respect to each other, in which an air suction aperture is coordinated to the radiator in a longitudinal side wall of the bus forming also a side wall of a chamber which is closed off with respect to the engine space and accommodates the radiator, and in which a regulated fan supplying air into the engine space and operating as suction fan is arranged to the rear of the radiator, in relation to the longitudinal direction of the bus; the engine space is thereby lined with a noise-absorbing material and includes a cover panel which closes off the engine space in the downward direction while an air discharge aperture is provided in the engine space enclosure which, in relation to the vehicle longitudinal direction, is disposed in front of the engine approximately at the height of the cover panel.
Inventors
- 👤 Willi Kramer
- 👤 Peter Fietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:53
CPC Classifications
B; B60; B60K; B60K11/00; B60K11/02; B60K11/04; B60R; B60R13/00; B60R13/08; B60R13/0838; B60R13/0884
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
In a bus of the type having a water-cooled rear engine and including a radiator means and fan means cooperating with said radiator means, said engine and radiator means being laterally offset with respect to each other in separate first and second chambers, respectively, said respective chambers being encapsulated with a noiseabsorbing material, the improvement comprising said fan means being mounted between said respective chambers substantially at one end of said engine near the rear wall of the engine chamber for drawing air through said radiator means, a single air discharge aperture arranged near the front end of said engine at a front wall of the engine chamber for receiving the air from said fan flowing through the longitudinal extent of the engine chamber and out said air discharge aperture, and a lower cover means for removably enclosing said respective chambers, said lower cover means being removable for servicing said engine and radiator means, and said air discharge aperture being disposed near said front end of said engine above said lower cover means.
Claim 2
Dependent Claim
173 words
In a bus of the type having a water-cooled rear engine and including a radiator means and fan means cooperating with said radiator means, said engine and radiator means being laterally offset with respect to each other in separate first and second chambers, respectively, said respective chambers being encapsulated with a noiseabsorbing material, the improvement comprising said fan means being mounted between said respective chambers substantially at one end of said engine near the rear wall of the engine chamber for drawing air through said radiator means, a single air discharge aperture arranged near the front end of said engine at a front wall of the engine chamber for receiving the air from said fan flowing through the longitudinal extent of the engine chamber and out said air discharge aperture, and a lower cover means for removably enclosing said respective chambers, said lower cover means being removable for servicing said engine and radiator means, and said air discharge aperture being disposed near said front end of said engine above said lower cover means.
Claim 3
Dependent Claim
24 words
A bus according to claim 1, wherein said second chamber of said radiator means is arranged adjacent to a longitudinal sidewall of the bus.
Claim 4
Dependent Claim
24 words
A bus according to claim 2, wherein said radiator means is arranged in said second chamber substantially upright and transversely to the driving direction.
Claim 5
Dependent Claim
24 words
A bus according to claim 3, wherein an air intake means for introducing air into said second chamber is arranged in said longitudinal sidewall.
Claim 6
Dependent Claim
15 words
A bus according to claim 1, wherein said fan means is a controlled viscosity fan.
References Cited (Backward Citations)
US1820035A
Cited
US3147814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |