Patent ID: 7207545

Claim:
A throttle body comprising: a throttle casing including: a first main body; and a throttle valve disposed within the first main body; wherein the first main body is made of resin; wherein the first main body includes a substantially cylindrical bore portion that defines a flow channel, in which the throttle valve is disposed; wherein at least a part of the cylindrical bore portion disposed proximally to the throttle valve in a fully closed position comprises a substantially uniform radial thickness along a circumferential direction; a motor casing including: a second main body; and a motor disposed within the second main body; and a gear mechanism arranged and constructed to transmit rotation of the motor to the throttle valve; wherein the second main body comprises a first portion defining a first space for receiving the motor and a second portion defining at least a part of a second space for receiving the gear mechanism; wherein the first portion and the second portion are formed integrally with each other; and a coupling device arranged and constructed to couple the first and second main bodies to each other.