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US3915024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive arrangements
Assignee: British Leyland Truck and Bus Div Ltd
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Filing: 1971-07-21
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Granted: 1975-10-28
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Expires: 1991-07-21
Abstract
Abstract In a motor vehicle having a flexibly mounted engine, a rigidly mounted radiator and a direct drive between the engine and a radiator cooling fan, the cooling fan is carried on a mounting which allows it to move relatively to the engine but which is held at a fixed distance from the engine by a tie rod.
Inventors
- 👤 William Stuart Mort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:53
CPC Classifications
F; F16; F16H; F16H7/00; F01; F01P; F01P5/00; F01P5/02; F01P5/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
163 words
A cooling fan driving arrangement which comprises the following, a. an engine carried on a vehicle chassis or body, b. mounting means flexibly mounting the engine on the vehicle chassis or body, c. a coolant radiator and cooling fan assembly therefor, d. means connecting said cooling fan assembly to a fixed mounting, said means allowing limited free floating translational movement of said assembly with respect to said fixed mounting, e. a first pulley mounted on said engine and drivably connected thereto, f. a second pulley mounted on said fan assembly and drivably connected thereto, g. an endless flexible belt drivingly connecting the first pulley to the second pulley, h. a rigid member secured between the engine and the fan assembly to fix the distance between the axes of rotation of the two said driving pulleys, even when there is movement of the engine relative to the said fixed mounting, the length of said rigid member determining the tension in the endless flexible belt.
Claim 2
Dependent Claim
163 words
A cooling fan driving arrangement which comprises the following, a. an engine carried on a vehicle chassis or body, b. mounting means flexibly mounting the engine on the vehicle chassis or body, c. a coolant radiator and cooling fan assembly therefor, d. means connecting said cooling fan assembly to a fixed mounting, said means allowing limited free floating translational movement of said assembly with respect to said fixed mounting, e. a first pulley mounted on said engine and drivably connected thereto, f. a second pulley mounted on said fan assembly and drivably connected thereto, g. an endless flexible belt drivingly connecting the first pulley to the second pulley, h. a rigid member secured between the engine and the fan assembly to fix the distance between the axes of rotation of the two said driving pulleys, even when there is movement of the engine relative to the said fixed mounting, the length of said rigid member determining the tension in the endless flexible belt.
Claim 3
Dependent Claim
69 words
A cooling fan driving arrangement as claimed in claim 1 in which the means connecting the cooling fan assembly to the said fixed mounting comprises: a. guides carried by the said fixed mounting and fixed with respect to it, b. means carried by the said cooling fan assembly and slidably engaging said runners, whereby said fan assembly can move freely with respect to said guides and said fixed mounting.
Claim 4
Dependent Claim
63 words
A cooling fan driving arrangement as claimed in in claim 1 in which the means connecting the cooling fan assembly to the said fixed mounting comprises flexible carrier means secured between said fixed mounting and said fan assembly to connect the latter to the former, said flexible carrier means allowing limited movement of the fan assembly with respect to the said fixed mounting.
Claim 5
Dependent Claim
31 words
A cooling fan driving arrangement as claimed in claim 1 in which the said rigid member comprises a tie rod having means to enable the tie rod length to be adjusted.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |