Transmission vibration viscous damper

Patent · Tue Jul 07 04:00:00 EDT 1987

OSTI ID:6256211

Filkins, T J

A manual transmission is described comprising an input shaft adapted to be clutched to the crankshaft of an internal combustion engine, the input shaft having an input gear integral; the input gear forms with peripheral teeth and has a concentric axial bore formed as an integral part of the input shaft; a transmission output shaft supported at its forward end by journal means located in the axial bore; the output shaft having a speed gear formed with peripheral teeth journalled thereon, a countershaft having an axis of rotation parallel with the axis of rotation of the output shaft. The improvement wherein the countershaft has a viscous fluid damper coupling supported thereon. The coupling comprises a first driven gear journalled on the countershaft, and the first drive gear has peripheral teeth in constant meshed engagement with the input gear peripheral teeth. A second driven gear is fixed on the countershaft for rotation. The second driven gear has peripheral teeth in constant meshed engagement with the speed gear peripheral teeth, a diametrical through bore extending through the countershaft intermediate the first and second driven gears. Each first and second driven gears formed with a set of longitudinally extending mirror image axial teeth are arranged concentrically about axis of rotation. The sets of axial teeth are sized to mesh in a loose fitting manner defining predetermined interconnected clearance spaces between the sets of axial teeth.

• Assignee: Chrysler Motors Corp., Highland Park, MI
• Patent Number(s): US 4677868
• OSTI ID: 6256211
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100 -- Internal Combustion Engines
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
CONTROL EQUIPMENT
COUPLINGS
DAMPING
ENGINES
EQUIPMENT
FLUID FLOW
GEARS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MECHANICAL TRANSMISSIONS
MECHANICAL VIBRATIONS
MOTION
ROTATION
SEALS
SHAFTS
SPACE DEPENDENCE
SPEED REGULATORS
VELOCITY
VISCOUS FLOW