Diesel Kiki Co., Ltd.

Seizi Takahashi

Hachiro Aoki

Mitsuo Uchino

Osamu Shiozawa

A distributor type fuel injection pump which is provided with an eccentric connecting member coupling the timer piston of the injection timing control device to the roller holder. The eccentric connecting member comprises a first portion and a second portion eccentrically combined together. The first portion engages with the roller holder to support a predetermined one of the rollers on the roller holder, which is rotatably fitted thereon, whereas the second portion pivotably engages with the timer piston. Further provided is means for prohibiting pivotal movement of the second portion of the eccentric connecting member about the first portion of same relative to the roller holder. Displacement of the timer piston causes accurately corresponding circumferential displacement of the roller holder through the eccentric connecting member and the pivotal movement-prohibiting means to thereby achieve accurate control of the injection timing in response to the rotational speed of the engine.

Distributor type fuel injection pump having injection timing control

A distributor type fuel injection pump which is provided with an eccentric connecting member coupling the timer piston of the injection timing control device to the roller holder. The eccentric connecting member comprises a first portion and a second portion eccentrically combined together. The first portion engages with the roller holder to support a predetermined one of the rollers on the roller holder, which is rotatably fitted thereon, whereas the second portion pivotably engages with the timer piston. Displacement of the timer piston causes corresponding circumferential displacement of the roller holder through the eccentric connecting member to thereby vary the fuel injection timing.

Distributor type fuel injection pump adaptable to internal combustion

Flyweights develop sufficient centrifugal force to overcome the preload of a high speed governor spring when the speed of an internal combustion engine is above a predetermined maximum value to move a fuel control rod to decrease the amount of fuel injection and reduce the engine speed to the maximum value. The flyweights develop insufficient centrifugal force to overcome the preload of a low speed governor spring when the engine speed drops below a predetermined minimum value and the low speed governor spring moves the flyweights and thereby the fuel control rod to increase the amount of fuel injection and increase the engine speed to the minimum value. A manual speed control member moves the fuel control rod to control the engine speed between the minimum and maximum values. A linkage connects the speed control member to the flyweights in such a manner as to limit movement thereof when the engine speed is below the minimum value to a degree which is dependent on the position of the speed control member to prevent excessive fuel injection when the engine is operating under load.

Growing community of inventors

Higashi Matsuyama, Japan

Seizi Takahashi