Experimental Investigation on Improvement in Fuel Economy At Low Speed on Engine With Throttle Body Injection 891187
In this paper the problem of fuel economy at low speed on
passenger car with throttle body injection (TBI) engine is
According to the theory of turbulent flow in pipe, as the
internal diameter of barrel of throttle body is decreased, the
speed of air flow in smaller barrel will be increased under the
same air-flow, the Reynolds Number will be also increased and the
turbulence becomes stronger. Therefore the fuel atomization can be
A new type of throttle body (Duplex) for TBI engine is
On the other hand, the air flow at wide open throttle can be
compensated by means of an auxiliary barrel for developing max.
output of engine.
The result of the experiment is satisfactory. The fuel
consumption is decreased about 6% when that type of throttle body
is used on TBI engine.
Beijing Jeep Corp., Ltd.
5th International Pacific Conference on Automotive Engineering