Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Patent
1995-12-12
1997-11-11
Leo, Leonard R.
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
165 78, 165916, F28F 308
Patent
active
056853688
ABSTRACT:
A laminated type oil cooler for cooling engine oil by using engine cooling water includes a heat exchanging portion for heat exchanging between the engine cooling water and the engine oil. The heat exchanging portion is formed by laminating a plurality of plates rotated by a predetermined angle with an adjacent plate, and each of the plates has first and second fluid holes and a fluid passage portion. The fluid passage portion communicates with the first fluid hole without communicating with the second fluid hole. The first fluid hole communicates with the second fluid hole of the adjacent plate to form two independent groups of fluid pipes. One group includes two fluid pipes for the engine oil, one pipe is connected to an inlet of an engine side bracket and the other pipe is connected to an outlet of the engine side bracket. The other group includes three fluid pipes for the engine cooling water, one pipe is connected to an inlet of a filter side bracket, another pipe is connected to an outlet of the filter side bracket, and the other pipe forms a returning portion for returning the cooling water. In this way, each fluid passage for the engine oil and for the engine cooling water is alternately formed between the adjacent plates.
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patent: 5099915 (1992-03-01), Vandyke
Kato Seiichi
Yuasa Munenori
Leo Leonard R.
Nippondenso Co. Ltd.
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