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US 5,413,279 AGranted
Vehicle heating
AssigneeJ. Eberspacher
InventorsHans-Reiner Quaas, Helmut Keinert
Life of this patent
Estimating the term…
Abstract
A vehicle heating system characterized by a combined heating unit which contains a heater having a combustion gas/liquid heat exchanger and operating by burning liquid fuel, and a liquid/air heat exchanger in fluid flow communication therewith to supply heated air to warm the vehicle.
Claims13
A vehicle heating system comprising:
- a heater operating by burning fuel and generating combustion gas, said heater including a combustion gas/liquid heat exchanger to transfer heat from said combustion gas to a liquid;
- a liquid/air heat exchanger connected with said combustion gas/liquid heat exchanger to receive said liquid from said combustion gas/liquid heat exchanger and to transfer heat from said liquid to air to warm the vehicle, a portion of said liquid/air heat exchanger being combined with a portion of said combustion gas/liquid heat exchanger to form a signal heating unit, said liquid/air heat exchanger and the heater is connected to the cooling liquid circuit of an internal combustion driving engine of the vehicle, said cooling liquid circuit comprises a by-pass line for providing a short connection of a liquid outlet of the liquid/air heat exchanger to a liquid inlet of the heater, and a control valve for controlling the ratio of the liquid flow to the by-pass line and through the internal combustion engine.
A vehicle heating system comprising:
- a heater operating by burning fuel and generating combustion gas, said heater including a combustion gas/liquid heat exchanger means for transferring heat from said combustion gas to a liquid;
- liquid/air heat exchanger means positioned adjacent and attached to said combustion gas/liquid heat exchanger means, and for receiving said liquid from said combustion gas/liquid heat exchanger means and for transferring heat from said liquid to air to warm the vehicle.
Dependencies are inferred from the claim text.