Portable on-board mass emissions measuring system

Abstract

The invention is directed to an improved portable on-board mass emissions measuring system for internal combustion engines. In the preferred embodiment, the system is comprised of an exhaust analyzer (16), at least one sensor (18, 22 or 29) which may be temporarily attached to the engine for sensing parameters of the engine, and a processor (19) programmed to collect and manipulate data from the analyzer and the sensor, whereby the mass emissions of the engine may be calculated. The system may further comprise a display (20) for displaying the mass emissions of the engine and an engine-control interface (21). The sensor may be capable of sensing engine RPM, engine oil temperature, or intake manifold pressure. The exhaust analyzer may be capable of measuring concentrations of the engine exhaust constituents, particulates, aerosols, and gases in the engine emissions. The present invention also discloses a portable mass emissions measuring system for an internal combustion engine comprising an exhaust analyzer (16), a trace-gas injector (23), and a processor (19) programmed to collect and manipulate data from the analyzer and the injector, whereby the mass emissions of the engine may be calculated. In addition, the present invention is directed to a method for determining the emission flow rate of an internal combustion engine with the trace-gas injector.

Dependencies are inferred from the claim text.