METHOD TO DETERMINE PRESSURE IN COMBUSTION CHAMBER AND DEVICE DESIGNED FOR THIS PURPOSE Russian patent published in 2013 - IPC G01L7/00 F23Q7/00 

FIELD: engines and pumps.

SUBSTANCE: method is proposed to determine pressure in a combustion chamber, in particular, in an internal combustion engine chamber, at the same time in it a device is used to determine pressure in the combustion chamber, which comprises at least one heating rod (5), at least one metering element (4), at least two spring membranes (1, 2) and at least one tubular body (6), at the same time the specified spring membranes (1, 2) are installed concentrically around the heating rod (5). Due to the possibility of double direction of the heating rod with the help of two spring membranes, and also due to arrangement of metering and reference elements in the neutral plane, the proposed ignition plug providing for the possibility of pressure measurement is free from action of side oscillations and other deformations.

EFFECT: simplified design, reduced perception to side oscillations and elimination of effect at a metering element of external deformations with provision of higher concentricity between a heating rod and a body.

7 cl, 6 dwg