Piston type throttle valve carburetor
AssigneeMikuni Kogyo Kabushiki Kaisha
InventorsShogo Hashimoto, Yoshimatsu Hashiba
Life of this patent
Estimating the term…
Abstract
A piston type throttle valve carburetor which is provided with a pilot fuel feed system and more than one main fuel feed systems is disclosed. This carburetor smoothly responds to from light load to full load operation of the engine and can be manufactured without great working accuracy required.
Claims4
A piston type throttle valve carburetor which defines an air inlet port and is provided with a pilot fuel feed system, a double piston valve assembly which comprises a first piston type throttle valve and a second piston type throttle valve which is larger than the first piston type throttle valve, and first and second main fuel feed systems each comprising a main jet, a needle jet and a jet needle which is inserted in the needle jet, the jet needles of the first and second main fuel feed systems being secured to the first and second piston type throttle valves respectively, and the second main fuel feed system being located between the first main fuel feed system and the air inlet port and the carburetor also being provided with operating means connected to the double piston valve assembly for opening the first main fuel feed system before the second main fuel feed system is opened.
Dependencies are inferred from the claim text.