Transmission lubricant cooling system

Details Transmission lubricant cooling system Transmission lubricant cooling system

2006-05-02

2006-05-02

Fenstermacher, David (Department: 3682)

Lubrication

Systems

With lubricant treatment means

C184S006120

Reexamination Certificate

active

07036634

ABSTRACT:
A vehicle transmission lubrication communication system including a pump, a torque converter, an oil cooler, a shifting control assembly, a sump, a main shaft, a counter shaft, and a secondary shaft. The pump withdraws lubricating oil from the sump and pumps the lubricating oil throughout the lubrication system. The pump directs a first flow to the torque converter, a second flow to the shifting control assembly, and a third flow to the main shaft. Oil from the torque converter flows through the oil cooler and, downstream the oil cooler, separates into a first portion of cooled oil that is directed to the secondary and counter shafts and a second portion of the cooled oil that is directed to the sump. Increased flow through the torque converter and oil cooler, as well as directing cooled oil to the secondary and counter shafts, reduces the oil temperature during normal and lockup modes of operation.

REFERENCES:
patent: 4027643 (1977-06-01), Feenan et al.
patent: 4095644 (1978-06-01), Huff
patent: 4621710 (1986-11-01), Tsukamoto et al.
patent: 4922765 (1990-05-01), Hayakawa et al.
patent: 5115887 (1992-05-01), Smith
patent: 5456129 (1995-10-01), Tane et al.
patent: 6203467 (2001-03-01), Yamamoto et al.
patent: 6520293 (2003-02-01), Ogawa et al.

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