07922181 is referenced by 9 patents and cites 16 patents.

A first rotor (24; 124) and a second rotor (25; 125) are arranged in a coaxial and mutually rotatable relationship and are provided with a first driven gear (41; 141) and a second driven gear (42; 142), respectively. A drive shaft (31; 131) is also provided with a first drive gear (43; 143) and a second drive gear (44; 144) which are commonly connected to an output shaft of an electric motor (32; 132), and mesh with the first and second driven gears, respectively, at slightly different gear ratios. The first and second rotors are connected via a thread feed mechanism (36; 136) that converts a relative rotation between the first and second rotors into an axial linear movement between the first and second rotors that is used for changing a distance between a vehicle body part and a corresponding end of a suspension spring in a vehicle height adjusting system (9; 109). Owing to a differential rotation of a high gear ratio between the first and second rotors, a significant torque amplification is possible with a compact arrangement. The use of spur gears instead of a worm gear mechanism minimizes torque loss.

Title
Vehicle height adjusting system
Application Number
11/649216
Publication Number
7922181 (B2)
Application Date
January 4, 2007
Publication Date
April 12, 2011
Inventor
Kunimichi Hatano
Wako
JP
Yoshimitsu Akuta
Wako
JP
Kiyoshi Nakajima
Wako
JP
Hajime Kajiwara
Wako
JP
Hajime Hirata
Wako
JP
Takehiko Hakui
Wako
JP
Agent
Arent Fox
Assignee
Honda Motor
JP
IPC
B60G 17/02
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