DEVICE TO PROTECT INTERNAL COMBUSTION ENGINE FROM ABRASIVE WEAR Russian patent published in 2005 - IPC

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: invention makes it possible to improve reliability of engine owing to preventing abrasive wear of engine at depressurization of intake manifold, and it can be used as emergency signaling device on internal combustion engine. Proposed device contains pneumatic corrector made in form of housing with fitted-in spring-loaded diaphragm which is mechanically coupled with fuel feed control lover and forms working space together with housing of pneumatic corrector. Working space communicates through one of two holes with intake manifold of diesel engine, and through other hole, with atmosphere through channel with shutoff member. Shutoff member is connected with output of electronic control unit whose input is connected with speed sensor. Device is provided with interconnected pressure meter and pulse analyzer. Pressure meter is connected by pipelines with intake manifold of engine in two points, before and after air cleaner installed in said manifold. Pulse analyzer is connected with one of inputs of electronic control unit. Speed sensor connected with other input of electronic control unit is installed on engine crankshaft. Electronic control unit is connected with signal elements of instrument panel.

EFFECT: improved reliability of engine operation.

1 dwg