Temperature activated cooling fan assembly

Details Temperature activated cooling fan assembly Temperature activated cooling fan assembly

1988-07-15

1989-09-19

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

192 82T, 310 63, 310 68C, 415123, H02K 906, F01P 702

Patent

active

048684376

ABSTRACT:
A temperature activated fan assembly preferably for an electric motor. The assembly includes a fan, a torque transfer means engagable with the fan for transferring torque to the fan and a first member which expands in response to a temperature increase. The expansion of the first member causes the torque transfer means to engage the fan. The first member is situated within the motor such that the first member causes the fan to operate when a critical temperature in the motor is reached. The first member can be fabricated as a rod or coil from a material having a suitably high coefficient of thermal expansion. The first member can also be fabricated from a memory material.

REFERENCES:
patent: 1374901 (1921-04-01), Blankenhorn
patent: 1921042 (1933-08-01), Roos
patent: 2516269 (1950-07-01), Starkey
patent: 3106343 (1963-10-01), Holland
patent: 3280352 (1966-10-01), Chapman
patent: 3792697 (1974-02-01), Walter et al.
patent: 4290393 (1981-09-01), Hart et al.
Article from Popular Science, written by Steven Ashley; pp. 78-81 and 115; Jan. 1988.
Sales Brochure from Innovative Technology International Inc. for Nitinol.

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