DEVICE FOR CHECKING CONDITION OF HIGH-PRESSURE FUEL ELEMENTS OF DIESEL ENGINES Russian patent published in 2004 - IPC

FIELD: mechanical engineering; diagnosing facilities. SUBSTANCE: invention can be used for checking condition of plunger pairs and delivery valve of high-pressure fuel injection pump and nozzles of diesel engine at servicing. Invention makes it possible to create device for checking condition of high-pressure fuel equipment of diesel engine, namely, nozzles and plunger pairs and delivery valves of fuel injection pumps which provides accurate measurement of fuel pressure at diagnosing. Proposed device contains pressure sensor and high-pressure facilities for connecting said sensor to inlet elements of members to be checked. Device is furnished also with hydraulic damper is form of chamber. Said chamber is provided with partitions with through holes and inlet union in middle part of chamber for connecting to union of one of sections of high-pressure fuel pump, and two outlet unions is opposite ends of chamber for connecting to corresponding pressure sensor and inlet element of diesel engine nozzle to be checked. EFFECT: decreased labor input, provision of required accuracy of diagnosing. 5 cl, 2 dwg