| 摘要 |
An engine heater for heating cooling liquid in a relatively narrow coolant hose (11) in an internal combustion engine comprises an electric heating element (13) and a house (27, 21) of metal having a body of a large inner diameter. The house comprises narrow connector nipples (25, 35) adapted to the hose and the active part of the heating element is located inside the body. A lid (21) is sealingly attached to one end of the body and carries one of the nipples. The other end of the body has a tapered shape and carries at it outermost end the other nipple. The outermost portion of the heating element can be bent to a hook in order to increase the active part of the element or the length of the element that is located inside the body, and not to give all of the heater a not too great total length. For this structure the heating element will be located only adjacent to metal parts and can therefor be supplied with high power and provide a rapid heating without obtaining thereby any damage to the coolant hose. The heater has a simple structure and can be easily manufactured. |
