Nissan Motor Company Limited

Manabu Tsunematsu

Koichi Takahashi

Nobuteru Hitomi

Tokiyoshi Yanai

Koichi Takahasi

An annular sleeve is radially deformed within a cylindrical bore to provide a housing for a pump having vanes slidable through slots in an eccentric rotor, the radially opposed edges of the vanes slidably contacting the inner surface of the sleeve.

Vane pump housing

A slotted bush disposed about and connected by a cotter to a pump plunger is rotatable by a control rod.

Pump plunger rotating device for plunger-type fuel injection

A fuel injection pump for an automotive fuel injection system, comprising a fuel metering unit which includes a plunger axially movable in synchronism with revolution of a pump shaft and rotatable about its axis for regulating timings and quantities of fuel injection, and a control device which consists largely of a centrifugal governor responsive to a centrifugal force developed by the revolution of the pump shaft for driving the plunger to turn about its axis through an angle proportional to the pump shaft revolution speed and a vacuum-operated actuator responsive to vacuum in an intake manifold of the engine for driving the plunger in accordance with the vacuum in the intake manifold.

Growing community of inventors

Yokosuka, Japan

Manabu Tsunematsu