Motonic Corporation

Jun Hyeok Lee

Wan Jae Jeon

Yong Deok Park

Yeong Dong Park

Sang Ryul Lee

Dae Yong Kim

Kyu Sung Choi

Jae Kyung Kim

Yong Heon Kang

Jae Kwang Kim

Hyung Soo Kim

Seung Jin Park

Dong Sub Kim

Gu Ho Kim

Hae Jin Kim

Provided is a pressure control method for a high-pressure regulator to prevent internal leak, and the high-pressure shut-off valve so as to minimize an internal leak, due to high-pressure gas remaining in a high-pressure fuel line when a valve of a gas storage tank is shut off, caused by a pressure difference between a front end portion and a rear end portion of the high-pressure regulator introducing or discharging high-pressure gas. Accordingly, the convenience for connecting work is provided, the high safety is ensured, and the high-pressure regulator is used with the high reliability.

Pressure control method for high-pressure regulator to prevent internal leak, and high-pressure shut-off valve

Provided is a high pressure fuel pump that smoothly achieves fuel supply while running and quickly relieves vapor generated during a restart by a piston operation of a high pressure fuel pump to improve a startup delay phenomenon, and an LPDI system including the same.

High pressure fuel pump and LPDI system including the same

An apparatus and a method for controlling a flow control valve for a high-pressure fuel pump include: a pressure sensor for fuel in a delivery pipe; a control unit for controlling an operation of a flow control valve by controlling a current applied to a coil; a power switching unit for supplying or blocking driving power supplied to the flow control valve based on a control signal of the control unit; and a current adjustment unit electrically connected/disconnected with the flow control valve by the power switching unit to reduce a current supplied to the flow control valve when the current adjustment unit is connected with the flow control valve. Therefore, a noise and a vibration by collision between the plunger and the core upon closing the flow control valve may be attenuated by adjusting a current amount applied to the coil.

Apparatus and method for controlling flow control valve for high pressure fuel pump

Growing community of inventors

Daegu, South Korea

Jun Hyeok Lee