Method, computer program, and device for measuring the...

Details Method, computer program, and device for measuring the... Method, computer program, and device for measuring the...

2005-07-12

2005-07-12

McCall, Eric S. (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Compression

Reexamination Certificate

active

06915683

ABSTRACT:
For measuring the injection quantity (Vm) of injection systems (18), in particular in internal combustion engines, test fluid (22) is injected by the injection system (18) into a measurement chamber (12). To increase the precision and stability of the measurement, the volume of the measurement chamber (12) is kept constant during the injection. Moreover, a gas volume (Vg) is present in the measurement chamber (12). The injected volume (Vm) of test fluid (22) is ascertained from the pressure change (dP) in the measurement chamber (12) that occurs upon an injection of test fluid (22). The ascertainment of the injected volume (Vm) is done by means of the state equation for ideal gases.

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