Antonelli, Terry, Stout & Kraus, LLP
Fuel supply system
A fuel supply system for a direct injection engine which has a variable capacity single cylinder plunger pump and two fuel rails. Offices are disposed at the upstream side inlets of both fuel rails, respectively. At the opposite sides to the inlet sides, the fuel rails are interconnected with each other by a connecting pipe. Using this fuel supply system, it is possible to increase a characterisitic frquency of the fuel columns, and to stabilize, suppress, and smooth out pressure pulsation in the fuel rails, thereby reducing uneven fuel injections into the cylinders. The system may have a cam which drives a plunger of a high pressure fuel pump to reciprocate once for every two combustions in two engine cylinders.
Hitachi, Ltd.
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Tadahiko Hiroyuki Yukio Kenichiro Kenji Atsuji Kunihiko
Nogami Yamada Takahashi Tokuo Hiraku Saito Takao