公开(公告)号：US06343780B1

公开(公告)日：2002-02-05

申请号：US09649182

申请日：2000-08-28

Applicant: Kenji Nakazato

Inventor： Kenji Nakazato

IPC: F02M708

CPC classification number: F02M19/126 ,  F02M7/08

Abstract: The invention provides an inexpensive acceleration apparatus of a carburetor which can stably supply a fuel for acceleration for a long time. In the acceleration apparatus of the carburetor, a cam lever (8) provided with a cam surface (8A) is fixed to a throttle valve operating shaft (4A) disposed between a throttle lever (5) and an end portion (3A) of a supporting boss (3). A first lever (10) is brought into contact with the cam surface (8A) of the cam lever by a first spring (12) for urging in a first rotational direction (A). A second lever (11) is brought into contact with a restriction portion (10C) of the first lever (10) by a second spring (13) for urging in a second rotational direction (B), and is arranged in such a manner as to be brought into contact with a pump rod (6H) for pressing a pump diaphragm (7) of a pump apparatus (P). A contact portion (K) of the first lever (10) brought into contact with the cam surface (8A) of the cam lever (8) is arranged between the throttle lever (5) and the end portion (3A) of the supporting boss (3) in a direction of a longitudinal axis (Y—Y) of the throttle valve operating shaft (4) and within a projected plane of the throttle lever (5) on a surface perpendicular to the longitudinal axis (Y—Y) of the throttle valve operating shaft (4).

Abstract translation: 本发明提供一种能够长时间稳定地供给加速燃料的化油器的廉价的加速装置。 在化油器的加速装置中，设置有凸轮表面（8A）的凸轮杆（8）固定在设置在节气门杆（5）和节气门杆（5）的端部（3A）之间的节气门操作轴（4A） 支持老板（3）。 第一杆（10）通过第一弹簧（12）与凸轮杆的凸轮表面（8A）接触，用于沿第一旋转方向（A）推压。 第二杆（11）通过第二弹簧（13）与第一杆（10）的限制部（10C）接触，用于沿第二旋转方向（B）推压，并且以如 与用于按压泵装置（P）的泵隔膜（7）的泵杆（6H）接触。 与凸轮杆（8）的凸轮表面（8A）接触的第一杆（10）的接触部分（K）设置在节流杆（5）和支撑凸台的端部（3A）之间 （3）在节气门操作轴（4）的纵向轴线（YY）的方向上并且在节气门杆（5）的投影平面内的垂直于节气门操作的纵向轴线（YY）的表面上 轴（4）。