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US 10,330,031 B2Granted
Gas engine
AssigneesYanmar Co., Ltd., Japan Ship Machinery and Equipment Association
InventorsTatsuro Ohsara, Keiji Matsumoto, Osamu Yamagishi
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AssigneesYanmar Co., Ltd., Japan Ship Machinery and Equipment Association
InventorsTatsuro Ohsara, Keiji Matsumoto, Osamu Yamagishi
Estimating the term…
A gas engine is provided that suppresses fluctuation of the actual air-fuel ratio even when a load fluctuates. A gas engine (1) in which at least one opening degree (D) selected from the opening degree of an air supply valve (5a) and the opening degree of a bypass valve (5b) is corrected so that an adequate target air-fuel ratio (λt) is achieved, wherein a target gas pressure (Pgt) and a target gas-jetting time (Tt) of a fuel gas are calculated on the basis of fluctuations of an actual load (L), the gas pressure is corrected on the basis of the target gas pressure (Pgt), and at least one opening degree selected from the opening degree of the air supply valve and the opening degree of the bypass valve is corrected on the basis of the amounts of change in the target gas pressure (Pgt) and the target gas-jetting time.
A gas engine, wherein at least one of an opening degree of an air supply valve and an opening degree of a bypass valve is corrected so as to provide an adequate air-fuel ratio, wherein:
A gas engine, wherein:
A gas engine comprising:
Dependencies are inferred from the claim text.