Fuel adjustment and filtering device for a high-pressure pump
AssigneeC.R.f Societa Consortio per Azioni
InventorsMario Ricco, Raffaele Ricco, Sergio Stucchi, Onofrio De Michele, Domenico Lepore, Marcello Gargano
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Abstract
A fuel adjustment and filtering device for a high-pressure pump of a fuel injection system, the device comprising at least one filter, comprising a removable filter cartridge, comprising a filtering body, housed within a filter casing; a shut-off solenoid valve for metering fuel; and, a pressure control valve for the fuel. The solenoid valve and pressure control valve are housed in a block separate from the pump. In one embodiment, in which the pressure control valve is optional, the solenoid valve may be mounted on the filter casing.
Claims28
An adjustment and filtering device for a high-pressure pump in an injection system for an internal combustion engine, the device comprising:
- at least one filter, the filter comprising a filter casing and a filter cartridge housed within the casing, the filter cartridge comprising a filtering body;
- a shut-off solenoid valve for metering filtered fuel from said filter to said pump;
- and
- a pressure control valve located downstream of the filter, wherein the shut-off solenoid valve and the pressure control valve are located in a block separate from said pump.
An adjustment and filtering device for a high-pressure pump in an injection system for an internal combustion engine, the device comprising at least one filter separate from said pump, the filter comprising a filter casing and a removable filter cartridge housed within the filter casing, the removable filter cartridge comprising a filtering body;
- a shut-off solenoid valve for metering filtered fuel output by said filter to said pump, wherein the shut-off solenoid valve is located downstream of the filter in a block fixed on said filter casing.
Dependencies are inferred from the claim text.