Governor assist mechanism

Details Governor assist mechanism Governor assist mechanism

1989-04-21

1991-04-02

Miller, Carl Stuart

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123365, 123389, 123376, F02D 700

Patent

active

050039490

ABSTRACT:
An apparatus for assisting a primary governor device (20) on an engine at certain load conditions or during transient loading is disclosed. The primary governor device has a control arm (12) which is moved by a primary governor spring (15) via a primary governor arm (14). The control arm (12) governs opening and closing of the throttle plate (10) on the carburetor (11). Four embodiments (47, 54, 30 and 78) of the governor assist mechanism are disclosed. The governor assist apparatus has an assist spring (48, 55, 32, 76) operatively connected to the control arm (12). A vacuum capsule (41) actuates the assist spring (48, 55, 32, 76) from the primary governor device (20) according to the vacuum in the intake manifold and load on the engine. The first embodiment or linear mechanism (47) has an assist spring (48), an intermediate link (49), and the diaphragm plunger (40) in linear alignment. The second embodiment or rocker mechanism (54) interconnects the assist spring (55) and the diaphragm plunger (40) by means of a pivotal arrangement or bell crank (58). The third embodiment or hinge mechanism (30) has an intermediate link (36) which abuts against a clip (49) on the control arm (12). The fourth embodiment or governor retarding mechanism (78) has the assist spring (76) positioned directly between the primary governor arm (14) and vacuum capsule (41).

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