Liquefied gas controlling method

Abstract

Abstract PURPOSE:To prevent the generation of bubbles in fuel and make a fuel control proper at the time of starting an engine by providing closing valves in a fuel feeding system, and opening a closing valve in a return pipe line first at the time of stopping an engine, whereas, opening said closing valve on said return pipe line lately at the time of starting said engine. CONSTITUTION:A closing valve 3, two fuel pumps 5, 6, and a closing valve 7 are provided on a feeding pipe line 2 from a fuel tank 1 to an injection valve 8 which is opened into an intake passage 12. A pressure regulator 10 and a closing valve 11 are provided on a return pipe line 9 from the injection valve 8 to the tank 1. And, when stopping an engine, first, the closing valve 11 is closed after the fuel injection from the injection valve 8 is stopped and, after that, the closing valves 3, 7 are closed, according to the command of a control unit 13. When starting the engine, first the closing valves 3, 7 are opened, the fuel pumps 5, 6 are started and, after that, the closing valve 11 is opened. Thereby, the inside of a fuel feeding system can be kept at a high pressure, suppressing the generation of bubbles while improving a starting property.

Inventors

• 👤 Morio Kaneko
• 👤 金子　守夫
• 👤 Naoya Iwata
• 👤 岩田　尚哉
• 👤 Tomio Dobashi
• 👤 富生 土橋
• 👤 Masaki Fujisaki
• 👤 藤咲　正記

Bibliographic Details