Shaft seal for use in throttle valve unit of internal combustion engine, has elastic hose having end sections sealed and securely coupled to connectors provided at respective ends of drive shaft to cover entire drive shaft

摘要

The shaft seal (20) has an elastic hose (21) having end sections (211,212) sealed and securely coupled to the connectors (19) provided at respective ends of a drive shaft (12) to cover the entire drive shaft. The drive shaft is rotatably inserted to an opening (18) formed on a casing wall (101) using the connector. The connector at one end of the drive shaft seals the opening through which the drive shaft is inserted.