公开(公告)号：US20040090119A1

公开(公告)日：2004-05-13

申请号：US10290846

申请日：2002-11-07

Applicant: Arctic Cat Inc.

Inventor： Russ Ebert ,  Ken Fredrickson ,  Ron Bergman

IPC: B62D055/26

CPC classification number: B62M27/02 ,  B62D25/161

Abstract: The top wall of a snowmobile tunnel, which accommodates the endless drive track of the snowmobile, is provided with recesses at locations corresponding to the path followed by studs carried by the endless track. In another aspect of the invention, the rear of the tunnel is connected to a molded rear member. The rear member provides a downwardly curving back portion for the tunnel. The rear member may have a shape corresponding to that of the tunnel, e.g. having a pattern of recesses matching that of the top wall of the tunnel. In yet another aspect of the invention, a heat exchanger for cooling engine coolant may be provided at the rear of the tunnel. The heat exchanger may be mounted to and partially spaced from the molded rear member, thereby permitting snow thrown by the endless track to pass on both sides of the heat exchanger. In another aspect of the invention, a tunnel for a snowmobile may be narrower in the front than in the rear.

Abstract translation: 容纳雪地车的环形驱动轨道的雪地车通道的顶壁在对应于由循环轨道承载的螺柱的路径对应的位置处设置有凹部。 在本发明的另一方面，隧道的后部连接到模制的后部构件。 后部构件为隧道提供向下弯曲的后部。 后部构件可以具有与隧道的形状相对应的形状，例如。 具有与隧道顶壁相匹配的凹陷图案。 在本发明的另一方面，可以在隧道的后部设置用于冷却发动机冷却剂的热交换器。 热交换器可以被安装到模制的后部件上并且与模制的后部件部分间隔开，从而允许环形履带上的雪被引导到热交换器的两侧。 在本发明的另一方面，一种用于雪地车的隧道在前方可比在后方窄。