Patent ID: 6892680
Filing Date: 2005-05-17
Classification: F02B,F02M,Y02T

Abstract:
1. A water injection device for an engine, comprising: a water injector configured to be positioned within a suction tube of an engine; a water supply mechanism coupled to the water injector and configured to supply water to the water injector; an air supply mechanism also coupled to the water injector and configured to supply air to the water injector; a valve mechanism coupled between the water injector and the supply mechanisms where the valve mechanism is configured to selectively supply water from the water supply mechanism and the air from the air supply mechanism to the water injector; a control mechanism coupled to the valve mechanism and configured to control the valve mechanism based on operating conditions within the engine; and a check valve installed within the water injector, for forming a one-way path from the valve mechanism to the suction tube of the engine.