Ishikawajima-harima Jukogyo Kabushiki Kaisha

Mazda Motor Corporation

Hidetsugu Matsubara

Tsuyoshi Goto

Yoshiyuki Miyagi

Yuichi Iguchi

Koichi Hatamura

Shigeru Takabe

Hiroyuki Sugimoto

Kazuya Miyashita

Yasuo Tanaka

Seishiro Takayama

Shinya Tanaka

In a lysholm compressor having intermeshing male and female rotors rotated in a casing to compress an axially flowing gas, discharge-side shafts of the rotors are borne by discharge-side bearings to fix the discharge-side shafts in thrust direction while suction-side shafts of the rotors are borne by suction-side bearings to allow the suction-side shafts to move in the thrust direction. Clearances of the rotors to the casing are properly set or selected.

Bearing support for a lysholm compressor

Lubricating device for engine-driven supercharger

The center of gravity of a retaining pin which is struck into a retaining-pin receiving hole to join a rotor barrel with a rotor shaft is eccentrically positioned toward the leading end of the pin beyond the axis of the shaft so that upon rotation of the rotor, the pin is forced to thrust toward the bottom of the hole by the centrifugal force, thereby preventing the pin from pulling out of the hole.

Rotor with eccentrically positioned retainer pin

Growing community of inventors

Hachioji, Japan

Hidetsugu Matsubara