VEHICLE POWER PLANT COOLING DEVICE Russian patent published in 2008 - IPC B60K11/00 F28D1/04 

FIELD: transport and agricultural engineering; power plants cooling systems.

SUBSTANCE: device contains first heat exchanger for cooling first medium to be cooled by flow of external air passing through first front surface of first heat exchanger. Second heat exchanger is adapted for cooling second medium to be cooled by flow of external air passing through second front surface of second heat exchanger. Second heat exchanger is arranged over first heat exchanger so that their front surfaces do not overlap. Each heat exchanger contains inlet and outlet channels and two manifolds between which pack of tubular members enclosed between upper and lower pressure members is arranged. Tubular members in pack are coupled by two support members, one of which is in tight contact over entire contact surface with first manifold, and the other is in tight contact over entire contact surface with second manifold. Support members are rigidly coupled with pressure members and are made so that one end of each tubular member communicates with first manifold, and other end communicates with second manifold. First heat exchanger is made to provide multipass flow of medium to be cooled through pack of tubular members with even number of passes. Inlet and outlet channels of first heat exchanger are coupled with one manifold. Inlet channel of first heat exchanger has section arranged on second heat exchanger. Pack of tubular members of each heat exchanger is provided with intertube corrugated attachments to form channels to pass medium to be cooled and intertube corrugated attachments to form channels for external air.

EFFECT: reduced overall dimensions of cooling device, increased heat exchanger effectiveness.

25 cl, 2 dwg