| 摘要 |
PURPOSE:To exactly measure exhaust pressure, by providing a measuring device for measuring the differential pressure of both pressure between mean pressure in the adjacent part of the opening end to a collective exhaust pipe of an intrinsic exhaust pipe, and instantaneous pressure of an inlet to the intrinsic exhaust pipe from an internal combusion engine. CONSTITUTION:An exhaust pressure measuring device is provided with an opening end pressure measuring sensor 10, an opening end pressure measuring instrument for measuring pressure by a pressure signal detected by this sensor 10, a signal operating device 12, etc. In this state, pressure of an inlet of an intrinsic exhaust pipe 2 is smeasured by an inlet pressure measuring device A consisting of an inlet pressure measuring sensor 4 and an inlet pressure measuring instrument 3, also pressure in the adjacent part of an opening end 9 to a collective exhaust pipe 6 of the intrinsic exhaust pipe 2 is measured by an opening end pressure measuring device B consisting of an opening end pressure measuring sensor 10 and an opening end pressure measuring instrument 11, and also a difference of said pressure is operated by the signal operating device 12, by which exhaust pressure can be measured exactly. |
