An engine fuel consumption test device and method used in research and development

Abstract

The invention provides an engine fuel consumption amount testing device used for research and development. The device comprises a pressurization device (1), a metering tube (2), an oil through tube (3), a valve (4), a high-speed camera (5) and a display instrument (6) and is characterized in that the pressurization device (1) can keep certain gas pressure in the metering tube (2) in sealing connection with the pressurization device (1); the front end of the metering tube (2) is in sealing connection with the pressurization air outlet of the pressurization device (1); and the rear end of the metering tube (2) is vertically communicated with the oil through tube (3). The invention also provides a measurement method. The metering tubes of different tube diameters can be used for adapting to fuel consumption measurement of different accuracy requirements, which stage consumes a large fuel amount under a transient state can be visually and quickly judged, a calculation amount is reduced, and a research and development progress is quickened.

Description

technical field [0001] The invention relates to a measurement technology, in particular to a test device and method for engine fuel consumption used in research and development. Background technique [0002] In the vehicle research and development stage, it is necessary to repeatedly measure the fuel consumption of the vehicle and the engine. In addition to measuring the steady-state fuel consumption, sometimes it is necessary to study the transient fuel consumption. The fuel consumption test of the bench generally uses a steady-state fuel consumption meter. This kind of fuel consumption meter (referred to as a fuel consumption meter) is not suitable for short-term fuel consumption measurement, especially for transient processes such as engine acceleration and deceleration. , cannot be measured with a steady-state fuel consumption gauge. Measuring instruments that can measure transient fuel consumption sold on the market are often very expensive, so professional manufacture...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a test device and method for engine fuel consumption used in research and development, in order to solve the problem of lack of fuel consumption measurement equipment for engine bench transient tests and special occasions and vehicle tests, and completely solve the problem of transient fuel consumption The consumption measurement equipment is too expensive and some special occasions and the problem that the general steady-state fuel consumption meter cannot be used for measurement

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