Nissan Motor Company Limited

Kazuo Hioki

Yasuo Takagi

Syunichi Aoyama

Shigeo Muranaka

Sugihara, Kunihiko

A valve, the opening degree of which is decreased with rise in the intake manifold vacuum is located in an exhaust gas recirculation conduit at the downstream of another valve, the opening degree of which is increased with rise in the vacuum at a port opening to the carburetor in the neighborhood of the periphery of the throttle valve in its closed position.

Exhaust gas recirculation system

A control apparatus for a vacuum operated device comprising a first flexible diaphragm responsive to a vacuum input, a second flexible diaphragm responsive to a vacuum output present in a vacuum chamber, a control valve associated with said second flexible diaphragm for controlling the vacuum output in said chamber, and a control arm connected between said first and second diaphragms and rotatable about a fulcrum, the movement of said first flexible diaphragm being transmitted through said control arm to said second flexible diaphragm, whereby said control valve is actuated to control the vacuum output in said vacuum chamber.

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Yokohama, Japan

Kazuo Hioki