US3659480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehcile power train
Assignee: Motors Liquidation Co
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Filing: 1970-07-06
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Granted: 1972-05-02
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Expires: 1990-07-06
Abstract
Abstract A vehicle power train having an engine, a transmission including a torque converter driven by the engine, differential gearing connecting the transmission to the vehicle''s drive axle shafts, a brake connected to brake the input to the differential gearing to brake the drive axle shafts and a fan driven by the input of the transmission circulating air to cool the brake, the torque converter and the engine.
Inventors
- 👤 Erkki A Koivunen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:00
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H47/00; F16H47/06; F16H47/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
260 words
In a vehicle power train the combination of an engine; a pair of axle shafts, drive train means for selectively drivingly connecting said engine to drive said axle shafts; housing means for housing said drive train means and having inlet air passage means and outlet air passage means; said drive train means comprising transmission means having an input connected to be driven about a central axis at right angles to said axle shafts by said engine and also having an output for providing a plurality of selective transmission drives between the input and output; said drive train means further comprising differential gearing means having an input connected to be driven by the output of said transmission means and also having a pair of outputs separately drivingly connected to said axle shafts for drivingly connecting said transmission means to said axle shafts while permitting one axle shaft to rotate faster than the other; selectively engageable brake means housed in said housing means and axially aligned with said axle shafts at a position spaced from said central axis for selectively braking the input of said differential gear means to brake said axle shafts; and fan means spaced from said central axis at a position corresponding substantially with the position of said brake means along said axle shaft axis, said fan means connected to be driven by the input of said transmission means for circulating air in through said air inlet passage means, across said brake means, and out through sAid outlet passage means to cool both said brake means and said engine.
Claim 2
Dependent Claim
260 words
In a vehicle power train the combination of an engine; a pair of axle shafts, drive train means for selectively drivingly connecting said engine to drive said axle shafts; housing means for housing said drive train means and having inlet air passage means and outlet air passage means; said drive train means comprising transmission means having an input connected to be driven about a central axis at right angles to said axle shafts by said engine and also having an output for providing a plurality of selective transmission drives between the input and output; said drive train means further comprising differential gearing means having an input connected to be driven by the output of said transmission means and also having a pair of outputs separately drivingly connected to said axle shafts for drivingly connecting said transmission means to said axle shafts while permitting one axle shaft to rotate faster than the other; selectively engageable brake means housed in said housing means and axially aligned with said axle shafts at a position spaced from said central axis for selectively braking the input of said differential gear means to brake said axle shafts; and fan means spaced from said central axis at a position corresponding substantially with the position of said brake means along said axle shaft axis, said fan means connected to be driven by the input of said transmission means for circulating air in through said air inlet passage means, across said brake means, and out through sAid outlet passage means to cool both said brake means and said engine.
Claim 3
Dependent Claim
265 words
In a vehicle power train the combination of an engine; a pair of axle shafts; drive train means for selectively drivingly connecting said engine to drive said axle shafts; housing means for housing said drive train means and having air inlet passage means and air outlet passage means; said drive train means comprising transmission means including hydrodynamic torque converter means intermediate said inlet and said outlet passage means; said transmission means having an input connected to be driven by said engine and also having an output and being operable to provide a plurality of selective transmission drives between the input and output; said drive train means further comprising differential gearing means having an input drivingly connected to the output of said transmission means and also having a pair of outputs separately drivingly connected to said axle shafts for drivingly connecting said transmission means to said axle shafts while permitting one axle shaft to rotate faster than the other; selectively engageable brake means housed in said housing means intermediate said inlet and said outlet passage means for selectively braking the input of said differential gear means to brake said axle shafts; and fan means housed in said housing means intermediate said inlet and said outlet passage means and connected to be driven by the input of said transmission means for drawing air into said housing means through said air inlet means to cool said brake means and also said hydrodynamic torque converter means and then discharging the air out of said housing means through said air outlet passage means to circulate air to cool said engine.
Claim 4
Dependent Claim
265 words
In a vehicle power train the combination of an engine; a pair of axle shafts; drive train means for selectively drivingly connecting said engine to drive said axle shafts; housing means for housing said drive train means and having air inlet passage means and air outlet passage means; said drive train means comprising transmission means including hydrodynamic torque converter means intermediate said inlet and said outlet passage means; said transmission means having an input connected to be driven by said engine and also having an output and being operable to provide a plurality of selective transmission drives between the input and output; said drive train means further comprising differential gearing means having an input drivingly connected to the output of said transmission means and also having a pair of outputs separately drivingly connected to said axle shafts for drivingly connecting said transmission means to said axle shafts while permitting one axle shaft to rotate faster than the other; selectively engageable brake means housed in said housing means intermediate said inlet and said outlet passage means for selectively braking the input of said differential gear means to brake said axle shafts; and fan means housed in said housing means intermediate said inlet and said outlet passage means and connected to be driven by the input of said transmission means for drawing air into said housing means through said air inlet means to cool said brake means and also said hydrodynamic torque converter means and then discharging the air out of said housing means through said air outlet passage means to circulate air to cool said engine.
Claim 5
Dependent Claim
266 words
In a vehicle power train the combination of an engine; a pair of axially aligned axle shafts; drive train means for selectively drivingly connecting said engine to drive said axle shafts; housing means for housing said drive train means; said drive train means comprising transmission means including hydrodynamic torque converter means having a central axis at right angles to said axle shaft; said transmission means having an input connected to be driven by said engine and also having an output and being operable to provide a plurality of selective transmission drives between the input and output; said drive train means further comprising differential gearing means having an input drivingly connected to the output of said transmission means and also having a pair of outputs separately drivingly connected to said axle shafts for drivingly connecting said transmission means to said axle shafts while permitting one axle shaft to rotate faster than the other; selectively engageable brake means housed in said housing means in axial alignment with said axle shafts for selectively braking the input of said differential gear means to brake said axle shafts; said housing means including air inlet passage means and also including air outlet passage means; and fan means housed in said housing means and connected to be driven by the input of said transmission means for drawing air into said housing means through said air inlet passage means to cool said brake means and also said hydrodynamic torque converter means and then discharging the air out of said housing means through said air outlet passage means to circulate air to cool said engine.
Claim 6
Dependent Claim
266 words
In a vehicle power train the combination of an engine; a pair of axially aligned axle shafts; drive train means for selectively drivingly connecting said engine to drive said axle shafts; housing means for housing said drive train means; said drive train means comprising transmission means including hydrodynamic torque converter means having a central axis at right angles to said axle shaft; said transmission means having an input connected to be driven by said engine and also having an output and being operable to provide a plurality of selective transmission drives between the input and output; said drive train means further comprising differential gearing means having an input drivingly connected to the output of said transmission means and also having a pair of outputs separately drivingly connected to said axle shafts for drivingly connecting said transmission means to said axle shafts while permitting one axle shaft to rotate faster than the other; selectively engageable brake means housed in said housing means in axial alignment with said axle shafts for selectively braking the input of said differential gear means to brake said axle shafts; said housing means including air inlet passage means and also including air outlet passage means; and fan means housed in said housing means and connected to be driven by the input of said transmission means for drawing air into said housing means through said air inlet passage means to cool said brake means and also said hydrodynamic torque converter means and then discharging the air out of said housing means through said air outlet passage means to circulate air to cool said engine.
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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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |