公开(公告)号：US5435276A

公开(公告)日：1995-07-25

申请号：US132285

申请日：1993-10-06

Applicant: Makoto Nakamura ,  Siniti Takemura ,  Teturou Goto ,  Shoji Morita ,  Yukio Yamakawa

Inventor： Makoto Nakamura ,  Siniti Takemura ,  Teturou Goto ,  Shoji Morita ,  Yukio Yamakawa

IPC: F01L1/18 ,  F01L13/00 ,  F01L1/34

CPC classification number: F01L13/0036 ,  Y10T74/20882

Abstract: A main rocker arm driven by a first cam, and a sub-rocker arm driven by a second cam larger than the first cam, are supported adjacent to each other. A sliding member which moves together with the sub-rocker arm, and a contact piece which comes into contact with the sliding member according to the slide position of the sliding member, are provided on the main rocker arm. The sliding member moves between a position where it is in contact with the contact piece and a position where it is not in contact with the contact piece according to the engine running conditions. The sliding member and contact member are constructed of iron or an iron alloy, while the main rocker arm is constructed of aluminum or an aluminum alloy. The construction of the cam change-over mechanism is therefore rendered lightweight, and machining of the main rocker arm is rendered facile.

Abstract translation: 由第一凸轮驱动的主摇臂和由大于第一凸轮的第二凸轮驱动的副摇臂彼此相邻地支撑。 与主摇臂一起移动的滑动构件和根据滑动构件的滑动位置与滑动构件接触的接触片设置在主摇臂上。 滑动构件在其与接触件接触的位置和根据发动机运行条件不与接触件接触的位置之间移动。 滑动构件和接触构件由铁或铁合金构成，而主摇臂由铝或铝合金构成。 因此，凸轮转换机构的构造变得轻巧，主摇臂的加工变得容易。