Abstract: Valve device includes a valve chamber containing three spherical members in stacked relation which produce a limited pulsating air flow that is metered in precise amounts at any given time into the fuel/air path of a gasoline powered internal combustion engine. The valve chamber has a main entry orifice and one or more supplemental entry orifices, the size and number of which may be varied to obtain the desired range or spread of frequencies for a particular engine over its entire operating range.

Abstract: Valve device includes a valve chamber containing three spherical members of different hardnesses in stacked relation therein, which produce a limited pulsating air flow that is metered in precise amounts at any given time into the fuel/air path of a gasoline powered internal combustion engine to maintain a narrow band air/fuel ratio over substantially all operating modes. The valve chamber has relatively narrow entry and exit orifices in order to increase the velocity of the pulsations generated therein while at the same time reducing the amount of supplemental air flow through the device. The valve seat also has a conical shape to establish line contact with one of the spherical members to assist in obtaining maximum resonation during operation and provide a more positive seal when the engine is not running.

Abstract: Valve device and system employing same for providing variations in air flow to the manifold of an internal combustion engine in accordance with the engine vacuum. The valve device includes a plurality of resiliently deformable spherical members which are caused to resonate over substantially the full operating range of the engine, whereby the auxiliary air passing through the valve pulsates creating turbulence in the air flow into the manifold resulting in shock waves which assist in breaking up the fuel into smaller, more uniform particle sizes and maintaining a more constant air/fuel mixture over the full operating range. The valve body is in the shape of a Tee having a hollow-cylindrical portion containing the spherical members and oppositely extending tubular arms in communication therewith. One of the arms is plugged, and the other arm is connected to the carburetor by a hard plastic or metal tube which assists in maintaining the air pulsations during passage of the air therethrough.