SPEED GOVERNOR OF ENGINE

• US 20120055447A1
• Filed: 09/02/2011
• Published: 03/08/2012
• Est. Priority Date: 09/06/2010
• Status: Active Grant

• Current Assignee: Kawasaki Motors Ltd (Kawasaki Heavy Industries Limited)
• Original Assignee: Kawasaki Jukogyo Kabushiki Kaisha (Kawasaki Heavy Industries Limited)
• Inventors: Hirano, Michio, YANO, Takahiro
• Granted Patent: US 8,590,509 B2
• Time in Patent Office: Days
• US Class Current: 123/400
• CPC Class Codes: F02D 2009/0203 Mechanical governor
• CPC Class Codes: F02D 31/00 Use of speed-sensing governors to control combustion engines, not otherwise provided for
• CPC Class Codes: F02D 9/02 concerning induction conduits throttle valves, or arrangements thereof in conduits F02D9/08
• CPC Class Codes: F02M 69/18 the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air the means varying fuel pressure in a fuel by-pass passage, the pressure acting on a throttle valve against the action of metered or throttled fuel pressure for variably throttling fuel flow to injection nozzles F02M69/26
• CPC Class Codes: F16F 15/265 Arrangement of two or more balancer shafts F16F15/267 takes precedence

Abstract

The present invention is to provide a speed governor of an engine having a crankshaft and a balancer shaft arranged substantially in parallel to the crankshaft, in which a drive gear provided in the crankshaft and a driven gear provided in the balancer shaft are meshed with each other so as to transmit mechanical power, the speed governor including a plurality of flyweights pivotally supported on the driven gear of the balancer shaft via a plurality of support pins, and an interlock mechanism for connecting the plurality of flyweights to a fuel feed portion for feeding fuel to a combustion chamber of the engine.

Claims

1. A speed governor of an engine having a crankshaft and a balancer shaft arranged substantially in parallel to the crankshaft, in which a drive gear provided on the crankshaft and a driven gear provided on the balancer shaft are meshed with each other so as to transmit mechanical power, the speed governor comprising:

a plurality of flyweights pivotally supported on the driven gear of the balancer shaft via a plurality of support pins; and

an interlock mechanism for connecting the plurality of flyweights to a fuel feed portion for feeding fuel to a combustion chamber of the engine.

2. The speed governor of the engine according to claim 1, wherein the driven gear has a recess portion on an end surface thereof, and the support pins supporting the flyweights are arranged in the recess portion.

3. The speed governor of the engine according to claim 2, wherein the recess portion is formed into an annular shape substantially concentric to the driven gear.

4. The speed governor of the engine according to claim 1, wherein one end of the balancer shaft in the axial direction is supported on a side wall of a crankcase, the other end of the balancer shaft is supported on a crankcase cover fastened to a side surface of the crankcase in the axial direction, and

an actuating member of the interlock mechanism actuated by pivot of the flyweights is supported on the crankcase cover.