Abstract A heat exchanger for cooling transmission fluid of a motor vehicle having a liquid-cooled internal combustion engine and a fluid controlled or operated transmission. The transmission fluid heat exchanger is used in conjunction with the cooling system used to transfer to the atmosphere heat from the liquid used for cooling the internal combustion engine. The transmission fluid heat exchanger preferably is positioned in a tank of a radiator for the purpose of transferring heat from the transmission fluid passing through the heat exchanger to the liquid used for cooling the internal combustion engine. The transmission fluid heat exchanger includes an inlet orifice and an outlet orifice and means for causing the transmission fluid entering the inlet orifice of the heat exchanger to flow initially in a direction away from the outlet orifice and then in a direction toward the outlet orifice.
A transmission fluid heat exchanger which comprises: a first cylinder; a second cylinder coaxially positioned with respect to said first cylinder and of large diameter than said first cylinder, said second cylinder having inlet and outlet orifices spaced from one another along the length of said second cylinder, said first and second cylinders having their ends sealed together to form a closed chamber between them; and a U-shaped member positioned within said chamber and extending between said first and second cylinders for constraining fluid entering therein through said inlet orifice to flow in an axial direction away from said outlet orifice and then in an axial direction toward said outlet orifice, the closed portion of said U-shaped member being positioned around said inlet orifice and the legs of said U-shaped member extending in a direction away from said outlet orifice.
Claim 2
Dependent Claim
140 words
A transmission fluid heat exchanger which comprises: a first cylinder; a second cylinder coaxially positioned with respect to said first cylinder and of large diameter than said first cylinder, said second cylinder having inlet and outlet orifices spaced from one another along the length of said second cylinder, said first and second cylinders having their ends sealed together to form a closed chamber between them; and a U-shaped member positioned within said chamber and extending between said first and second cylinders for constraining fluid entering therein through said inlet orifice to flow in an axial direction away from said outlet orifice and then in an axial direction toward said outlet orifice, the closed portion of said U-shaped member being positioned around said inlet orifice and the legs of said U-shaped member extending in a direction away from said outlet orifice.
Claim 3
Dependent Claim
43 words
A transmission fluid heat exchanger in accordance with claim 1, wherein said member is a U-shaped wire, said wire being positioned in sealing engagement with both the radially outer surface of said first cylinder and the radially inner surface of said second cylinder.
Claim 4
Dependent Claim
32 words
A transmission fluid heat exchanger in accordance with claim 1, wherein said U-shaped member is integral with said second cylinder and comprises a radially extending protuberance formed in one of said cylinders.
Claim 5
Dependent Claim
29 words
A transmission fluid heat exchanger in accordance with claim 1, which further includes a turbulator positioned within said chamber, said U-shaped member being an integral part of said turbulator.