VARIABLE AIR SUCTION DEVICE

• Main Authors: INO MASAO, CHATANI TAKASHI, HAYASHI TOSHIO, YAMANAKA TETSUJI
• Format: Patent
• Language: English
• Published: 26.02.2004
• Edition: 7
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To provide a variable air suction device capable of reducing the wear and precluding generation of vibrations and noises. SOLUTION: The variable air suction device is structured so that the end of a drive shaft member 40 located opposite an actuator 60 is supported by an end bearing member 51, which is formed from metal and slides with a cover 42 for the drive shaft member 40. Because the end bearing member 51 of metal assures a high shape accuracy, the clearance between the cover 42 and the end bearing member 51 can be lessened. Even if this clearance is small, an eventual axis misalignment between the cover 42 and the end bearing member 51 is absorbed by a bushing 53 installed between the end bearing member 51 and an intake manifold 10. The cover 42 and the end bearing member 51 are made of different materials, which enlarges the limit PV value and reduces the wear. COPYRIGHT: (C)2004,JPO