Studies on the Application for Farm Tractor Drive of LP Gas (I)

On the Judgment of LP Gas Consumption

Abstract

For the purpose of adaptation of LP Gas fuel to farm tractor, the authors studied some comparative experiments between gasoline and LP Gas.
As the results of those experiments, we found the next terms.
(1) Gasoline is higher than LP Gas fuel on brake horsepower, engine torque and brake thermal efficiency.
(2) On the rate of fuel consumption, LP Gas consumes much quantity than gasoline, but on the economical standpoint of fuel consumption, LP Gas is half as much as gasoline, which value is 7-9 yen/PS-h. This is the superior point of LP Gas.
(3) On the light load and small output, LP Gas wastes economical cost.
(4) On the light load and small output, LP Gas cannot continue constant revolution, and has variation of load and output. Therefore, we have to adjust frequently hand regulation of diaphragm of LP Gas convertor. LP Gas keeps the constant output at heavy load only.
Consequently, LP Gas is low in cost and has great benefit.
We are going to improve the maximum and over loaded output of LP Gas engine.