公开(公告)号：US4816192A

公开(公告)日：1989-03-28

申请号：US123149

申请日：1987-11-20

申请人： Mohamed Abou-Aly ,  Eberhard Bohnacker ,  Bernhard Kiefel ,  Reinhard Gerhardy ,  Reinhard Friedrich ,  Erich Krauter

发明人： Mohamed Abou-Aly ,  Eberhard Bohnacker ,  Bernhard Kiefel ,  Reinhard Gerhardy ,  Reinhard Friedrich ,  Erich Krauter

IPC分类号： B27B17/00 ,  F02B63/02 ,  F02M15/02 ,  F02M15/04

CPC分类号： F02M15/022 ,  B27B17/00 ,  F02B63/02 ,  Y10S261/20

摘要： The invention is directed to a handheld, portable tool such as a chain saw equipped with an internal combustion engine mounted in an engine housing. The engine has a carburetor defining an air-intake channel. A heating element is provided which is electrically connected to the generator of the chain saw and mounted on the carburetor in the region of the air-intake channel. The heating element has a positive temperature coefficient and a predetermined temperature region thereby preventing the carburetor housing and the throttle flap from heating to a temperature above a predetermined value. The heating element and the way it is mounted prevents icing at the carburetor in cold weather thereby enabling the engine to run uninterruptedly and uniformly especially when the engine idles.

摘要翻译： 本发明涉及一种手持式便携式工具，例如装备有安装在发动机壳体中的内燃机的链锯。 发动机具有限定进气通道的化油器。 提供了一种加热元件，其与链锯的发电机电连接，并且安装在进气通道的区域中的化油器上。 加热元件具有正温度系数和预定温度区域，从而防止化油器壳体和节流阀片加热到高于预定值的温度。 加热元件及其安装方式可防止化油器在寒冷天气下结冰，从而使发动机不间断地和均匀地运行，特别是当发动机空转时。