Honda Motor Co., Ltd.

Manabu Hashimoto

Yusuke Ninomiya

Shota Gomibuchi

Keita Ito

Shohei Kono

Katsuya Tajima

Manabu Dobashi

Souhei Honda

Sayaka Yasoshina

Kazuhisa Ogawa

Hibiki Koga

Wataru Yamazaki

Takeshi Fukawa

Hiroki Muta

An internal combustion engine includes an engine body defining a combustion chamber, an ignition device configured to ignite mixture in the combustion chamber, an operation device configured to receive a stop operation to stop the internal combustion engine, a controller configured to stop the ignition device from igniting the mixture in response to reception of the stop operation by the operation device, a carburetor configured to supply fuel to an intake passage that communicates with the combustion chamber, a switching valve provided in the intake passage, and an adjustment device configured to adjust an opening degree of the switching valve, wherein the adjustment device is configured to close the switching valve in conjunction with the reception of the stop operation by the operation device.

Internal combustion engine

An internal combustion engine that includes a first fuel pump that sucks fuel through a fuel filter, and a second fuel pump that supplies the fuel to a fuel injection device. The internal combustion engine comprises: a first fuel pipe that interconnects the fuel filter, the first fuel pump, and the second fuel pump set to have a pressure higher than a pressure of the first fuel pump; and a second fuel pipe that connects the second fuel pump to the fuel injection device that injects fuel into a combustion chamber formed in a cylinder portion of the internal combustion engine, a shielding wall covering an outside of the cylinder portion is provided between at least a part of the second fuel pipe and the cylinder portion, and the shielding wall includes a holding portion that holds at least the first fuel pipe and the second fuel pipe.

An internal combustion engine management system includes: a plurality of internal combustion engine units of which each includes an internal combustion engine, a first communicator configured to communicate with a server device, and a communication controller configured to transmit at least estimation information out of the estimation information which is used to estimate an environment in which the internal combustion engine is placed and information of a control map which is used to control the internal combustion engine to the server device using the first communicator; and the server device that includes a second communicator configured to communicate with the first communicator, and a processor configured to extract a second internal combustion engine unit having transmitted estimation information which is similar to the estimation information received from a first internal combustion engine unit out of the plurality of internal combustion engine units from the plurality of internal combustion engine units and to transmit the information of a control map received from the second internal combustion engine unit to the first internal combustion engine unit using the second communicator.

Internal combustion engine management system, server device, and internal combustion engine management method

An internal combustion engine () having a cylinder () having a rearwardly slanted axial line is provided with a plurality of cylindrical cyclone dust collection units () commonly connected to an upstream end of a filter dust collection unit (). Each cyclone dust collection unit includes a main body () internally defining a separation chamber (C), and having an air inlet () communicating with outside and an air outlet () communicating with the filter dust collection unit, and the separation chamber is provided with a dust ejection hole (D) directed tangentially in an obliquely forward direction. Thereby, dust ejected from the dust ejection hole is ejected away from the operator of the engine, and is prevented from depositing on the engine.

Internal combustion engine having air cleaner

In an air cleaner (), three cyclone dust collection units () are arranged on one side of a filter dust collection unit () in a mutually parallel relationship. The cyclone dust collection units are arranged along a circumferential direction of the filter dust collection unit, and the central cyclone dust collection unit has a smaller diameter than the remaining cyclone dust collection units positioned on either side of the central cyclone dust collection unit so that the dust collection units can be accommodated in a rectangular profile is a highly space efficient manner.

Air cleaner

An engine includes: a crankshaft; a camshaft; and a timing transmission systemwhich has a drive rotation member, a driven rotation member, and an endless power transmission member, and which provides connection between the crankshaftand the camshaft. An access windowthrough which the driven rotation memberis attached to and detached from the camshaftis opened in an outer end surfaceof the cylinder head. A lid bodyfor closing the access windowis jointed to the outer end surface. The outer end surfaceof the cylinder headcomprises a slanted surfacewhich is inclined so that at least a part of an outer periphery of the driven rotation memberon a side opposite from the drive rotation memberis exposed from the access window. Thus, it is possible to facilitate the operation of attaching the endless power transmission member to the driven rotation member and mounting the driven rotation member to the camshaft, and also contributing to downsizing of the engine.

Engine

In a V-type engine in which first and second banks arranged in a V-shape are provided continuously to a crankcase, and in which a carburetor is placed at a valley between the first and second banks, the carburetor is placed spaced from the first and second banks. Further, the carburetor is connected to intake ports of the first and second banks via first and second intake pipes, respectively, and first and second heat shield plates each made of synthetic resin are attached to side faces of the respective first and second banks, the side faces facing the carburetor, each of the first and second heat shield plates covering a corresponding one of the side faces and defining a cooling air passage between the heat shield plate and the side face. Accordingly, it is possible to surely prevent heat from the banks from affecting the carburetor in order to prevent percolation in the carburetor even in the case where the engine stops its operation in a high-temperature state.

V-type engine

In a V-type engine, intake and exhaust rocker arms in each bank are arranged in a substantially inverted-V-shape in a plan view, so that side end portions of corresponding intake and exhaust push rods are positioned adjacent to each other. Slipper portions of first and second intake cam followers have end portions at one end along the axial direction of a camshaft protrude respectively in opposite directions to each other so that they face each other across an intake cam therebetween. Slipper portions of first and second exhaust cam followers have end portions at one end along the axial direction of the camshaft protrude respectively in opposite directions to each other so that they face each other across an exhaust cam therebetween. This reduces the distance between the push rods in each bank to provide a compact valve-operating device.

Growing community of inventors

Wako, Japan

Manabu Hashimoto