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Title:
GEAR OIL COOLING DEVICE FOR DIFFERENTIAL GEAR IN CAR
Document Type and Number:
Japanese Patent JPS61113520
Kind Code:
A
Abstract:
PURPOSE:To efficiently radiate heat of the gear oil of a differential gear into the open air and cool said gear oil without the least consumption of power by installing heat-radiating fins on the condensing part of a heat pipe provided on a differential case. CONSTITUTION:One-side tubular part of a heat pipe 4 is made a heat absorbing and evaporating part 4a, while the other-side straight tubular part is made a heat radiating and condensing part 4b. This pipe 4 is attachedly provided in an integrated form with a differentials case 2 with its evaporating part 4a made pass through the through hole 3 of the differential case 2, while with its condensing part 4b being separately positioned outside the case 2. Heat radiating fins 5 are fixed to the condensing part 4b in a through condition, at a defined pitch, while one edge on the case 2 side of each of the fins is formed into a shape corresponding to the outer face configuration of the case 2. Thereby, the latent heat of evaporation is discharged at the condensing part 4b and, after condensed and liquefied, a cooling agent is again flowed back to the evaporating part 4a to cool the oil in the case 2.

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Inventors:
MUNEKAWA MASAAKI
MORI YASUO
TAKEYAMA KOICHI
Application Number:
JP23649084A
Publication Date:
May 31, 1986
Filing Date:
November 08, 1984
Export Citation:
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Assignee:
SHOWA ALUMINUM CORP
NISSAN MOTOR
NISSAN SHATAI CO
International Classes:
B60K17/16; F16H48/06; F16H48/12; F16H48/38; F16H48/40; F16H57/029; F16H57/04; F16N39/02; (IPC1-7): B60K17/16; F16H1/38; F16N39/02
Domestic Patent References:
JPS60189660U1985-12-16