抄録
The new carburettor consists of a choke tube of the Venturi type and a fuel diffuser, diamond-shaped in section, which is a substitute for the fuel-spray nozzle of the simplest jet-in-tube carburettor. The choke tube is made to slide axially and thereby the passage area of gas is regulated ; a throttle valve, as usually adopted in other carburettors, may be entirely dispensed with. Analytical investigation on air flow through this carburettor was worked and it was found that this construction, when suitably designed, could comple with the fundamental requirement of carburation. A model, based on the result of the analysis, supported experimentally the expectation. A method to compensate the temperature effect on carburation has been also studied, which, however, will be touched upon on another occasion.
