DEVICE FOR LOADING OF COMBUSTION ENGINE WITH AIR SHOCK WAVE Russian patent published in 2010 - IPC G01M15/04 G01M7/08 

FIELD: testing equipment.

SUBSTANCE: invention refers to testing equipment and may be used for testing of combustion engines by air shock wave, mainly of combustion engines located in subsurface constructions which may be subject to severe impact of air shock wave in case of explosion. Device for loading of combustion engine with air shock wave contains shock tube and source of shock wave containing detonator. Shock tube is designed with narrowing in its middle part. Source of shock wave is designed as chamber with high-pressure gas connected to one end of shock tube through destructible diaphragm. Detonator is located in chamber on diaphragm, controlled locking organ provided with electromechanical drive is located on the other end of shock tube. Junction pipe is connected to middle part of tube, its loose end is designed to enable connection to exhaust pipe of combustion engine, and there is also outlet pipe on loose end of which controlled locking organ provided with electromechanical drive is installed. Device contains first and second pressure sensors, control unit, data processing unit and data presentation unit, also temperature sensor and pressure sensor located in combustion engine cylinders. First pressure sensor is located in chamber with high-pressure gas and is connected to first input of control unit. Second pressure unit is located in exhaust pipe of combustion engine and is connected to second input of control unit. Temperature sensor is connected to fourth input of control unit. Pressure sensor is connected to fifth input of control unit. First output of control unit is connected to electromechanical drive of locking organ installed on end of shock tube. Second output of control unit is connected to electromechanical drive of locking organ installed on end of outlet pipe. Third output of control unit is connected to input of data processing unit, which first output is connected to input of data presentation unit and its second output is connected to third input of control unit.

EFFECT: provision of possibility of loading and evaluation of combustion engine operation under impact of air shock wave penetrating inside combustion engine during both compression phase and phase of air depression; device safety is improved due to decrease of force of detonator explosion.