Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Belt shifter for shifting belt laterally or for selective...
Reexamination Certificate
2007-08-07
2007-08-07
Charles, Marcus (Department: 3682)
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Belt shifter for shifting belt laterally or for selective...
C474S101000, C474S108000, C123S090310
Reexamination Certificate
active
10857849
ABSTRACT:
In a belt drive system20for transmitting torque at a crankshaft11of an automotive engine10to a supercharger (engine accessory)130a, an output pulley unit40formed of a first flat pulley50and a second flat pulley60is coupled to the rotational shaft131aof the supercharger130a. A flat belt70entrained between the output pulley unit40and the crank pulley30of the crankshaft11is shifted from the first flat pulley50to the second flat pulley60or vice versa by a speed ratio selector80. The rotational shaft131acan thereby be driven into rotation with the switching between a high speed ratio during acceleration and a low speed ratio during constant speed cruise. As a result, the supercharger130acan bring out its capability into full play without using parts involving increases in weight, cost and power consumption, such as a solenoid-operated clutch, and concurrently suppress the deterioration of fuel economy.
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Bando Chemical Industries Ltd.
Charles Marcus
Nixon & Peabody LLP
Studebaker Donald R.
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