Patent ID: 8100195
Filing Date: 2012-01-24
Classification: E21B,F28D

Abstract:
1. A radiator to transfer heat between first and second liquids, comprising: a cylindrical housing having an annular passageway, the cylindrical housing defining an inlet at a first end of the cylindrical housing and an outlet at a second opposite end of the cylindrical housing; a channel arranged within the annular passageway of the cylindrical housing along a spiral path to transport the first liquid and to define a spiral flow passageway between the inlet and the outlet for the second liquid, wherein the first liquid does not contact the second liquid and heat is to be transferred between the first and second liquids as the second liquid flows in the spiral passageway; a second housing; a pump positioned in the cylindrical housing to pump the first liquid to a device in the second housing, wherein the first liquid flows through the channel while returning from the second housing to the cylindrical housing; and a motor positioned in the cylindrical housing to operate the pump, wherein the first liquid is to transfer heat from the motor to the second liquid via the channel and the spiral flow passageway.