US3789618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary drive for engine driven air conditioner
Assignee: Individual
•
Filing: 1972-08-14
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Granted: 1974-02-05
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Expires: 1992-08-14
Abstract
Abstract An auxiliary electrical drive means is provided to alternately operate the components of a conventional internal combustion engine driven air conditioner, thus eliminating the need for the secondary roof mounted air conditioner, which is normally provided on recreational vehicles or the like. The dual operation of the aforementioned engine driven air conditioner is accomplished by the means of a pair of self-contained centrifugal clutch assemblies, suitable mounted to the conventional water pump and the air conditioner compressor, thereby automatically disconnecting the power train of the drive means that is not running.
Inventors
- 👤 J Feliz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:42
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3204; B60H1/3222
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
143 words
An air conditioner drive system for a motor vehicle which includes a conventional liquid cooled internal combustion engine having at the front thereof a coolant pump drive shaft, having a fan coaxial with the coolant pump drive shaft, and having a coolant radiator ahead of the fan, said motor vehicle further including a conventional automotive air conditioner having a compressor and having a condenser ahead of the fan, said air conditioner drive system including: a. means including a first centrifugal clutch for connecting the coolant pump drive shaft to the fan and the compressor when the engine is operating; b. an electric motor mounted adjacent the front of and parallel to the engine; and c. means including a second centrifugal clutch for connecting said electric motor to the compressor and the fan when said electric motor is operating and the engine is not.
Claim 2
Dependent Claim
143 words
An air conditioner drive system for a motor vehicle which includes a conventional liquid cooled internal combustion engine having at the front thereof a coolant pump drive shaft, having a fan coaxial with the coolant pump drive shaft, and having a coolant radiator ahead of the fan, said motor vehicle further including a conventional automotive air conditioner having a compressor and having a condenser ahead of the fan, said air conditioner drive system including: a. means including a first centrifugal clutch for connecting the coolant pump drive shaft to the fan and the compressor when the engine is operating; b. an electric motor mounted adjacent the front of and parallel to the engine; and c. means including a second centrifugal clutch for connecting said electric motor to the compressor and the fan when said electric motor is operating and the engine is not.
Claim 3
Dependent Claim
92 words
An air conditioner drive system as defined in claim 1 wherein the first clutch mentioned includes means for frictionally coupling the coolant pump drive shaft to the fan when the engine is operating, and wherein said second clutch includes means for frictionally coupling said electric motor to the compressor when said electric motor is operating, said system including pulley and belt means interconnecting the fan and the compressor so that the fan drives the compressor when the engine is operating and the compressor drives the fan when said electric motor is operating.
Claim 4
Dependent Claim
39 words
An air conditioner drive system as set forth in claim 2 including pulley and belt means connecting the coolant pump drive shaft to said first clutch, and pulley and belt means connecting said electric motor to said second clutch.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |