Yanmar Co., Ltd.

Junichi Samo

Masashi Sagara

Shinji Nishimura

Masamichi Tanaka

Satoshi Hattori

Manabu Miyazaki

Hajimu Imanaka

Yasuhiro Kanazu

Katsuyuki Shiota

Toshio Kamiyama

Tohru Ogawa

Seiji Itsuki

Yoshihiro Yokome

The present invention provides an engine cover structure for an engine () whose cylinder head () is covered at three of front, rear, right and left sides thereof by a fuel tank (), an air cleaner () and a muffler (), respectively, comprising a cover () which covers the remaining one side and/or a top side of the cylinder head ().

Cover structure for engine

With regard to a construction that a fanis provided at one side of an engineand covered by a fan casing, and an air cleaneris arranged near the fan casingand at a side of a cylinder headon which an intake portis disposed, a suction portcommunicated with the inside of the fan casingis provided in a main bodyof the air cleaner. A barrieris provided at a position facing to the suction portin the air cleaner. A wall standing toward the fan casingand the cylinder headis formed on the outer surface of the main bodyof the air cleaner. An air intake part is provided on one of side surfaces of a cover bodyof the air cleanerand the cover bodyis constructed to be an equilateral polygon. An intake pipecommunicating the air cleanerwith the intake portof the cylinder headis constructed integrally with a main bodyof the air cleaner

Superstructure of engine

Internal combustion engine

Portion of an internal combustion engine

A fuel injection pump, comprising three sub-mechanism parts; a lower mechanism part (A), a head mechanism part (B), and a governor mechanism part (C), wherein, when the governor mechanism part (C) is assembled into the combination of the lower mechanism part (A) and head mechanism part (B) after the lower mechanism part (A) and head mechanism part (B) are assembled with each other, a governor link () installed extendedly from the governor mechanism part (C) is inserted into both mechanism parts (A, B) and, when a hook groove () at the tip of the governor link () is engaged with a lock pin () in a control slider () for the rotation of a plunger () disposed inside the lower mechanism part (A) and head mechanism part (B), first, with a cut surface () of a lift pin () facing upward, the governor link () is put on the cut surface () so as to position the hook groove () under the lock pin (), and then the lift pin () is rotated to face the cut surface () downward, and the governor link () is swung upward by a cam part () so as to engage the hook groove () with the lock pin ().

Fuel injection pump

A start assister () of a fuel injection pump, comprising a piston () inlayed into a housing (H), an upper chamber () formed over the piston (), lower chamber () formed under the piston (), wherein a sub port () is opened and closed by sliding of the piston (), and a fuel injection timing is advanced by closing the sub port (). A thermo-element () for sliding the piston is arranged on one side of the piston () in sliding direction. A telescopic pin () of the thermo-element () is arranged in a low-pressure chamber () divided into the upper chamber and the lower chamber, and a connection pin () is interposed between the telescopic pin () and the piston ().

Start assister of fuel injection pump

Growing community of inventors

Osaka, Japan

Junichi Samo