Mazda Motor Corporation

Yasuhiro Sudou

Yasushi Nakahara

Tsunehiro Mori

Yasunori Kanda

Hiroshi Hosokawa

Koichi Hirata

Yuma Miyauchi

Shuji Takuma

Kiyonori Nagato

Kazuhiro Tomizawa

Akira Sumitani

Yukiyoshi Fukuda

Kouji Kubo

Jun Nishikawa

Masahiro Koizumi

Masakazu Kikuchi

Kazuya Nishimori

Naoyuki Abe

Osamu Torobu

Hiroyuki Abe

Kazuhiro Matsuoka

Kazuo Toyoda

Tetsuya Hanzawa

An engine piston structure includes: a piston (); a connecting rod () having a small end part () coupled to the piston (), and having a large end part () coupled to a crankshaft; a piston pin () through which the piston () and the small end part () of the connecting rod () are coupled together and which has a hollow cross section; and at least one dynamic vibration absorber () provided inside the piston pin () to reduce resonance of the piston (), the piston pin (), and the small end part () of the connecting rod () in combination with respect to the large end part () of the connecting rod () during a combustion stroke.

Piston structure for engine

There is provided, in one aspect of the present description, an engine. In one example, the engine comprises a cylinder block, a cylinder head, a sheet metal gasket interposed between the block and the head, a first projection projecting outwardly and laterally from a side portion of the block, and a second projection projecting outwardly and laterally from a side portion of the head, the first projection and the second projection facing each other along a coupling surface between the block and the head. The engine further comprises an extension extending from a main body of the sheet metal gasket and located between the first projection and the second projection, and a resilient portion which is provided in the extension, formed resiliently in a direction perpendicular to the coupling surface, and compressed between the first projection and the second projection when the head is fastened on the block.

Engine with vibration suppression structure

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Iwakuni, Japan

Yasuhiro Sudou