Apparatus for warming window washer liquid for a motor vehicle

Details Apparatus for warming window washer liquid for a motor vehicle Apparatus for warming window washer liquid for a motor vehicle

1983-11-22

1986-01-07

Bennett, Henry

Heat exchange

With vehicle feature

237 123R, 237 123B, 165156, 165169, B60H 106, F28D 710

Patent

active

045628904

ABSTRACT:
A window washer system for a motor vehicle is disclosed wherein means are provided for warming the window washer liquid. The window washer system includes a tank (5) for storing window washer liquid, a washer liquid pump (6), washer liquid hoses (7), a flexible heat exchanger tube (8) wound around an engine coolant hose (3), and window nozzles (10). As washer liquid is pumped through flexible heat exchanger tube (8), the washer liquid is warmed by heat conducted from hot engine coolant through the walls of coolant hose (3) and through the walls of heat exchanger tube (8). The heat exchanger tube (8) is connected by coupling elements (9) to the washer liquid hoses (7) in line between the washer liquid pump (6) and the window nozzles (10). The heat exchanger tube (8) is preferably made from a thermoplastic material such as nylon. An ear (15) may project from the side of the coupling element (9). The ear (15) has a small slit (16). A tie belt (17) passes through the slit (16) and wraps around the coolant hose (3). When the tie belt (17) is fastened, it secures both the heat exchanger tube (8) and the coupling element (9) to the engine coolant hose (3).

REFERENCES:
patent: 3021690 (1962-02-01), Kroger
patent: 3793992 (1974-02-01), Marquez
patent: 3888412 (1975-06-01), Lindo
patent: 4354548 (1982-10-01), Carlsson

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