BREATHER STRUCTURE OF MOTOR SPEED REDUCER OF MOTOR DRIVE SYSTEM

• Main Authors: KUSUKAWA HIROTAKA, TANIAI KAZUHIRO
• Format: Patent
• Language: English
• Published: 11.11.2004
• Edition: 7
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a breather structure capable of securely assuring breather function while avoiding the entry of water from the outside without increasing costs. SOLUTION: In this motor four-wheel drive system, one of front wheels or rear wheels can be driven by an engine and the other can be driven by a motor 1. The system comprises a speed reducer 2 connected to the output side of the motor 1. A sealed air chamber 22 is formed on a joined face between the motor 1 and the speed reducer 2, the air chamber 22 is connected to an upper inside space 24 in the speed reducer through a communication passage (breather hole) 23, and an atmosphere opening hole 25 is passed to the lower part of the air chamber 22. COPYRIGHT: (C)2005,JPO&NCIPI