Electrically driven camshaft adjuster

Details Electrically driven camshaft adjuster Electrically driven camshaft adjuster

2006-01-03

2006-01-03

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090310

Reexamination Certificate

active

06981478

ABSTRACT:
A device for electrically adjusting the relative rotation of two shafts, particularly a camshaft (15) in relation to a crankshaft of an internal combustion engine is provided. The adjusting device includes an adjusting gear system which is embodied as a triple-shaft gear mechanism and is provided with a crankshaft-fixed input part, a camshaft-fixed output part, and an adjusting shaft (13) that is connected in a torsion-proof manner to an electric adjusting motor shaft (32) of an electric adjusting motor (3). The adjusting motor (3) is configured as a brushless DC motor having a housing-fixed stator (35) and a permanent magnet rotor (34). A high degree of adjustment accuracy and adjustment speed are provided with minimal space requirements and low power consumption. This is achieved through the use of a double eccentric gear mechanism (2) and a double planetary gear mechanism, which are provided with a speed reduction of up to about 1:250 and low friction, as an adjusting gear system while using a highly inductive permanent magnet rotor for the adjusting motor (3).

REFERENCES:
patent: 3978829 (1976-09-01), Takahashi et al.
patent: 37 23 099 (1989-01-01), None
patent: 41 10 195 (1992-10-01), None
patent: 41 33 408 (1993-04-01), None
patent: 195 47 101 (1997-06-01), None
patent: 197 02 670 (1998-03-01), None
patent: 198 07 315 (1999-08-01), None
patent: 101 29 766 (2002-01-01), None
patent: 100 54 798 (2002-05-01), None
patent: 0 143 368 (1986-06-01), None
patent: 0 396 280 (1990-11-01), None
patent: 1 136 657 (2001-03-01), None

Affiliated with

Also associated with

Rating

Electrically driven camshaft adjuster does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrically driven camshaft adjuster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically driven camshaft adjuster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3576670