| 摘要 |
704,801. Regulating. S. U. CARBURETTER CO., Ltd. Sept. 16, 1952 [Oct. 10, 1951], No. 23550/51. Class 7(6) Throttle valve control mechanism comprises a compound lever consisting of a main lever A mounted on an axis coaxial with, or parallel to, that of the valve spindle B and carrying a cam lever C which can pivot to a limited extent independently of the main lever A, the cam lever C being coupled at J to a throttle control linkage and having a cam part E which coacts with a cam-follower H fixed on an arm I attached to the valve spindle B. When the control linkage is actuated 'to open the throttle valve from its closed position, the lever C turns about its pivot D and the first stage of throttle opening is effected gradually by the cam part E. When a recess F on the lever C engages an abutment G on the lever A, the two levers move together throughout the remainder of the opening of the throttle valve. The lever A is formed as a rectangular frame, Fig. 3, between the sides of which are situated the arm I and the cam part of the lever C. |
