Air mass flow meter for measuring e.g. air mass to adjust fuel amount of air mass for e.g. diesel engine in motor car, has channel divided into front and rear portions, where surfaces spanned by openings are arranged parallel to one another

摘要

#CMT# #/CMT# The flow meter has a measuring channel (1) including an inlet opening (6) for inlet of a measured air-flow and an outlet opening (7) for outlet of the air flow. The channel extends between a temperature sensor (8) and the outlet opening, and is divided into a front portion (1a) and a rear portion (1b) such that surfaces of an upper wall (2') and a bottom wall (3') are downwardly bent in relation to the front portion. The outlet opening is downwardly displaced in relation to the inlet opening. Surfaces spanned by the inlet and outlet openings are arranged parallel to one another. #CMT#USE : #/CMT# Air mass flow meter for measuring oxygen or air mass in order to adjust fuel amount of the air mass for a combustion engine e.g. diesel engine and petrol engine, in a motor car. #CMT#ADVANTAGE : #/CMT# The surfaces spanned by the inlet and outlet openings are arranged parallel to one another, so that the air discharged from the outlet opening is in a same flow direction as incoming-air, thus achieving a uniform aerodynamic flow path in the measuring channel, and hence measuring the air-mass in a high-accurate manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a vertical sectional side view of a measuring channel. 1 : Measuring channel 1a : Front portion of measuring channel 1b : Rear portion of measuring channel 2' : Upper wall of rear portion 3' : Bottom wall of rear portion 6 : Inlet opening 7 : Outlet opening 8 : Temperature sensor.