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APPAREIL DE POMPAGE POUR POMPER DU CARBURANT, PRÉFÉRABLEMENT DU DIESEL, VERS UN MOTEUR À COMBUSTION
APPAREIL DE POMPAGE POUR POMPER DU CARBURANT, PRÉFÉRABLEMENT DU DIESEL, VERS UN MOTEUR À COMBUSTION
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摘要
The invention relates to a pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine, comprising at least one cylinder (14), a piston (15) which is displaceably arranged in the cylinder (14), and a pressure valve (30) for selectively controlling the supply of fuel to the internal combustion engine, wherein the pressure valve (30) has a closure part (38, 46, 51) provided with a cavity (44, 49, 53) that opens to the outside on an end surface (43, 48, 52) facing the piston (15) of the closure part (38, 46, 51).
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