DEVICE FOR MEASURING PRESSURE INSIDE THE CYLINDER OF INTERNAL COMBUSTION ENGINE Russian patent published in 2006 - IPC G01M15/00 

FIELD: engineering of devices for determining status of cylinder-piston group of internal combustion engine on basis of compression developed in cylinder, remainder vacuum, and also vacuum in dynamics.

SUBSTANCE: device for measuring pressure inside the cylinder of internal combustion engine contains manometer and body, having hollow end piece for its connection to mounting aperture of spark-plug or sprayer of cylinder and made with internal channel, connecting to manometer through outlet channel and to hollow of end piece, vacuum meter, T-joint and inlet valve. T-joint is made with internal hollow, connected to three external apertures, and is mounted between output of internal channel of body on one side and manometer and vacuum meter on other side. First opening of T-joint is connected to output of internal channel, second aperture is connected to manometer and third aperture - to vacuum meter. Outlet valve is mounted between second aperture of T-joint and manometer, and inlet valve - between third aperture of T-joint and vacuum meter.

EFFECT: device allows to measure pressure (of both compression and vacuum) in internal combustion engine cylinder for determining technical state of cylinder-piston group of internal combustion engine of different types, with provided reliable connection of device sprayer or spark-plug with simultaneous decrease of laboriousness of measurements.

8 cl, 4 dwg