Crowell & Moring LLP
High-pressure fuel supply pump
To increase a valve-opening pressure at which a pressure relief valve is opened in order to deal with a higher pressure of the fuel, a large pressure relief valve is installed in a high-pressure fuel supply pump. This upsizes the high-pressure fuel supply pump. A pressure relief valve is installed in a discharge joint. This can provide a high-pressure fuel supply pump that is not large too much and sufficiently performs a relief function by efficiently using the excessive space in the pump even when the fuel pressure is increased.
Hitachi Automotive Systems, Ltd.
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Hiroyuki Satoshi Kenichirou Atsushi Yuta Masayuki Masamichi Atsuji
Yamada Usui Tokuo Hohkita Saso Suganami Yagai Saito