Kawasaki Jukogyo Kabushiki Kaisha

Takao Sasamura

Michio Hirano

Keiichi Nakamizo

Toru Minami

Atsuhiro Yoshimatsu

Masahiro Nonaka

Minoru Nakamura

Takahiro Yano

Micho Hirano

Yukio Miki

Internal combustion engine

An air cleaner unit of the present invention includes a removable cleaner case having defined therein an outflow port, located below the filter element, for discharging an air, introduced into the cleaner case, towards the combustion engine and including a case body opening downwardly and a bottom plate closing the opening of the case body, and a filter element replaceably accommodated within the cleaner case for substantially purifying the air introduced into the cleaner case through an air intake port. A pedestal is carried by the combustion engine and has an outer peripheral surface, which is substantially in flush with an outer peripheral surface of the filter element within the cleaner case. This filter element within the cleaner case is removably mounted on the pedestal. The bottom plate has a mounting hole defined therein and encircling the outer peripheral surface of the pedestal.

Air cleaner unit for combustion engine

A liquid-cooled, vertical shaft type combustion engine is provided with a duct utilizing a stream of cooling air induced by a cooling fan to cool various parts of the combustion engine. The combustion engine includes an engine body, a crankshaft accommodated in the engine body so as to extend in a vertical direction, at least one engine cylinder head disposed at a front portion of the engine body, a radiator mounted above the engine body for circulating an engine coolant, a duct positioned below the radiator, and a cooling fan operatively accommodated within the duct. The duct has at least a front discharge opening and side discharge ports defined in a peripheral wall for discharging a stream of cooling air induced by the cooling fan, in a direction forwardly of the engine body and in a direction slantwise forwardly of the engine body.

Liquid-cooled, vertical shaft type combustion engine

A multiple cylinder engine controls an air/fuel ratio accurately by improved detection of the fluctuations in a vacuum due to a change in the openings of throttle valves. The multiple cylinder engine includes a plurality of intake passages that independently feed intake air to cylinders; fuel injectors; throttle valves; a pressure sensor; and a fuel controller that controls fuel injection of each cylinder using the detected pressure. The multiple cylinder engine may further include a vacuum inlet passage having an inlet port opened into intake passages that introduces the pressure of the intake passages into the pressure sensor. The vacuum inlet passage preferably includes a throttle portion having a passage area of no more than one ninth that of the inlet port.

Multiple cylinder engine

Growing community of inventors

Akashi, Japan

Takao Sasamura