ELECTRICALLY OPERATED VALVE ASSEMBLY AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: An electrically operated valve assembly and a manufacturing method thereof are provided for simple installation by reducing the number of wires and hoses, and to improve resistance by firmly mounting the electrically operated valve assembly in the housing. CONSTITUTION: A combination solenoid operated flow control valve and solenoid operated by-pass valve and a pressure transducer are disposed in a common housing(12) with a common electrical receptacle for connection thereto. The pressure transducer senses differential pressure across a metering orifice. The pressure transducer measures flow through the metering orifice during leak testing. Vacuum is formed in the system for leak testing. The by-pass valve is opened to bypass the metering orifice and to permit full flow to the flow control valve during normal engine operation.