BLOCK-TYPE ELECTRICALLY CONTROLLED FUEL PUMP Russian patent published in 2024 - IPC F02M59/02 F02M59/44 

FIELD: engines and pumps.

SUBSTANCE: invention relates to fuel feed equipment for internal combustion engines (ICE). Disclosed is an electrically controlled fuel pump of block type, comprising a housing, with a camshaft located in the lower part of the housing with two rolling bearings and at least one friction bearing, wherein the rolling bearings are installed on both sides of the camshaft, and friction bearings are installed between cams or group of cams. In the upper part of the housing there are fixed from two to twenty electrically controlled fuel sections according to the number of camshaft cams with an electrically controlled fuel flow control valve and a plunger. Electrically controlled fuel sections are made with possibility to change advance angle and value of fuel supply according to signal of external control system. In the housing of the electrically controlled fuel pump there are plunger pushers, pusher sleeves, there are channels for supply and removal of fuel and oil from the internal combustion engine, drain fuel collection manifold. Above the plunger pushers there are cavities connected by a channel to each other. Plunger pushers are made with internal channels for supply of oil to rollers of plungers of plungers and distribution of oil along external surface of plunger pushers. Friction bearings are provided with oil collection pockets. Axes of plunger pushers rollers are provided with pockets for oil collection. Sleeves of pushers are made of antifriction material. On opposite side from camshaft drive modulators of rotation frequency and angular position converters are fixed, wherein the angular position converter modulator labels are configured to output information on the shaft position and rotation frequency. Converters of rotation frequency and position of camshaft are installed radially with gap of 0.25–0.75 mm, opposite modulators. Fuel temperature and pressure transducers are mounted on the housing.

EFFECT: stable and accurate supply of fuel to ICE cylinders, which contributes to increase in ICE working processes efficiency, ICE environmental performance improvement, ICE fuel saving, as well as increased service life of ICE.

1 cl, 9 dwg