Honda Motor Co., Ltd.

Keihin Corporation

Tetsuji Furukawa

Kazuyuki Shimada

Minoru Torii

Gaku Sato

Mitsuhiro Iwadare

Junichi Fukuda

Yasushi Matsuura

Takeshi Kumakura

Masanobu Tsurumi

Yoshihiro Kaneko

The present invention provides a protective construction of a fuel pump. The protective construction includes a pump shield, disposed on an internal-combustion engine, wherein a specified interval exists at a carriage side of a vehicle in opposite to a high-pressure fuel pump and the pump shield overlaps the high-pressure fuel pump in a front and rear direction. The pump shield includes: a base portion having a width increasing gradually towards the high-pressure fuel pump; a left protective arm portion and a right protective arm portion, extending diagonally and integrally extend upwards from a specified location of the base portion to the side of the high-pressure fuel pump, wherein an interval between the left protective arm portion and the right protective arm portion increases gradually towards the high-pressure fuel pump, and a beam portion, integrally extending between the left protective arm portion and the right protective arm portion.

Protective construction of fuel pump

A fuel injection valve includes a cylinder internal pressure sensor disposed in the vicinity of a distal end thereof. The cylinder internal pressure sensor detects a cylinder internal pressure in a cylinder and outputs a first sensor signal Ss1 responsive to the detected cylinder internal pressure. Further, a signal processor, which carries out predetermined signal processing with respect to the first sensor signal Ss1 to thereby convert the first sensor signal Ss1 into a second sensor signal Ss2, is disposed between the cylinder internal pressure sensor and a solenoid unit, which is disposed on a proximal end side of the fuel injection valve.

Fuel injection valve

Provided is a throttle valve device for an internal combustion engine which is favorably protected from icing, and enables a favorable control of the intake flow rate by avoiding an abrupt increase in the flow rate particularly in a small opening angle range. An upstream recess () and a downstream recess () are formed in a lower part of the throttle bore () of the throttle valve device. Moisture that may deposit on the inner wall of the throttle bore is allowed to be drained to the recesses. A cross sectional area of one of the recesses over which the lower edge of the throttle valve member sweeps as the throttle valve member () opens from the fully closed position is smaller than that of the other recess so that an abrupt change in the intake flow rate can be avoided in a small opening angle region.

Throttle valve device for an internal combustion engine

Growing community of inventors

Saitama, Japan

Tetsuji Furukawa