Yanmar Co., Ltd.

Yanmar Power Technology Co., Inc.

Masaki Nanko

Hiroyuki Machiyama

Ryota Iwano

Isao Takagishi

Kenichi Nakaguchi

Yusei Fukuda

Yuji Shiba

Ryosuke Okamoto

Tetsu Hattori

Provided is a fuel injection device for engines, configured using a technique which can extend service life while good responsiveness is maintained. This fuel injection device for engines is provided with: a control rack supported so as to be slidable in an axial direction and configured so that the amount of fuel delivered under pressure by a fuel pumping mechanism can be adjusted by changing the sliding position of the control rack in the axial direction; an actuator which can move forward and backward an operation section; and a link lever which is supported in a rockable manner by a support shaft and which rocks as the operation section of the actuator moves forward and backward, thereby sliding the control rack. The fuel injection device for engines is further provided with an actuator-side connection section for connecting the operation section of the actuator to the link lever. The actuator-side connection section is disposed coaxially with the operation section of the actuator.

Fuel injection device for engine

A technology that can extend the life of a fuel injection device of an engine while maintaining its good responsiveness is provided. A fuel injection devicefor an engine includes: a control racksupported to be slidable in an axial direction and capable of adjusting of a fuel pressure-feed amount of a fuel pressure-feed mechanism unit, based on its slide-position relative to the axial direction; an actuatorcapable of reciprocating its operating unit; and a link leverswingably supported by a pivot shaft memberand configured to swing in association with reciprocation of the operating unitof the actuatorthereby causing the control rackto slide, wherein the fuel injection device includes an actuator-side connecting partA connecting an operating unitof the actuatorto the link lever, and the actuator-side connecting partA is positioned on the same axis as the operating unitof the actuator

Fuel injection device for engines

A fuel injection pump for a diesel engine, including: a control rack arranged in a rack chamber formed between a pump head and a pump housing, and configured to adjust a fuel injection amount; a transmission shaft rotatably supported by a transmission shaft hole formed in the pump housing; and a lubricating oil passage formed in the pump housing, and configured to pressure-feed lubricating oil between the transmission shaft and the transmission shaft hole. The transmission shaft has an oil passage therein through which passage the lubricating oil pressure-fed to the lubricating oil passage partially passes, a first opening of the oil passage is communicated with the lubricating oil passage, and a second opening of the oil passage is formed on the outer circumferential surface of an upper portion of the transmission shaft, nearby the control rack.

Fuel injection pump

Growing community of inventors

Osaka, Japan

Masaki Nanko