Patent ID: 7140930
Filing Date: 2006-11-28
Classification: B63H,F02D

Abstract:
1. A thrust control apparatus for a jet propulsion watercraft including a water jet pump driven by an engine, wherein the watercraft travels by a thrust generated by the water jet pump, the thrust control apparatus comprising: a throttle sensor for detecting a fully-closed operation of a throttle of the engine; a steering sensor for detecting steering of a steering device more than a predetermined amount from a neutral position of the steering device, and a direction of the steering; a control device configured to control the engine such that the water jet pump generates a different predetermined thrust for rightward steering than for leftward steering at a given traveling speed of the watercraft, in accordance with the steering direction detected by the steering sensor, when the throttle sensor detects the fully-closed operation of the throttle and the steering sensor detects steering of more than the predetermined amount.