초록 ▼

There is disclosed a new and improved air-fuel metering regulator which provides for extremely fine adjustment of the flow of fuel to the internal combustion engine which may be operating under idling, cruising or various accelerating power circumstances. This is provided, in the preferred embodimen

There is disclosed a new and improved air-fuel metering regulator which provides for extremely fine adjustment of the flow of fuel to the internal combustion engine which may be operating under idling, cruising or various accelerating power circumstances. This is provided, in the preferred embodiment, by the novel arrangement of the separate air and fuel diaphragm and chambers with extremely fine adjustments being provided in both the air or vacuum chamber bodies and the fuel chamber bodies to limit the travel of both diaphragm assemblies in their respective linear directions toward or away from the vacuum or fuel chamber bodies. As a result of the fine adjustments possible and the particular layout of the chambers, more precise and upgraded performance is available in the internal combustion engine as a result of the fuel supply to the internal combustion engine being made more responsive to the various operating conditions of the engine.

대표청구항 ▼

An air-fuel metering regulator for adjusting the flow of fuel to, for example, an internal combustion engine operating under idling, cruising and accelerating power conditions, comprising: a. a housing; b. a fuel diaphragm within said housing, said fuel diaphragm and said housing providing a fuel ch

An air-fuel metering regulator for adjusting the flow of fuel to, for example, an internal combustion engine operating under idling, cruising and accelerating power conditions, comprising: a. a housing; b. a fuel diaphragm within said housing, said fuel diaphragm and said housing providing a fuel chamber within said housing, and said fuel chamber is provided with a fuel supply inlet and a fuel supply outlet; c. a vacuum diaphragm within said housing, said vacuum diaphragm and said housing providing a vacuum chamber within said housing, said vacuum chamber provided with an opening to which a supply of engine vacuum pressure is connectable; and d. valve means associated with said fuel chamber for controlling the rate of flow of fuel into said fuel supply inlet into said fuel chamber to said fuel supply outlet, said valve means being actuated by reciprocations of said fuel diaphragm, and said fuel diaphragm is reciprocated by motion of said vacuum diaphragm, said motion of said vacuum diaphragm produced by the supply of engine vacuum pressure connected to said fuel vacuum chamber, said valve means comprising in part maximum flow adjustment means in cooperation with said valve means and externally mounted on said housing for adjusting the maximum flow rate of fuel through said valve means, said valve means further comprising in part minimum flow adjustment means in cooperation with said valve means and externally mounted on said housing for adjusting the minimum flow rate of fuel through said valve means, said valve means being a needle valve having an inner valving needle, said valving needle being urged into contact at its end portion with said fuel diaphragm, and reciprocations of said fuel diaphragm within said fuel chamber producing a corresponding reciprocation in said valving needle and a variation of fuel flow from said inlet through said needle valve into said fuel chamber.