| 摘要 |
A low pressure side fuel path (27) extending from a fuel inflow port (26) to the feed pump (4), and a chamber (8), which can communicate with an inflow/outflow port (31), are formed by partitioning inside a housing (2). A cam ring (24), shoes (22) and rollers (23) are provided in the low pressure side fuel path (27) to induce low pressure, low temperature fuel into the area surrounding the rollers (23). A space (28) that communicates with the low pressure side fuel path (27) without constriction is formed on the upstream side on the back surfaces of the shoes (22) and the phase of the cam ring (24) and the control sleeve (34) is fixed with the adapter (25) provided on the boundary of the low pressure side fuel path (27) and the chamber (8). An intake passage (51) communicating with the intake port (50) may be formed in the adapter (25) to shorten the intake path (Fig.10). The area around the rollers (23), which tends to become heated in an inner-cam type fuel injection pump, is cooled efficiently, cam jump is reduced, control of advance angle is performed separately and independently of the fuel injection quantity control, and the efficiency of fuel intake is improved. <IMAGE>
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