EP 2067984 B1 20120530 - Starter having two planetary speed reducers with different speed reduction ratios
Title (en)
Starter having two planetary speed reducers with different speed reduction ratios
Title (de)
Anlasser mit zwei Planetengetriebedrehzahlminderern mit unterschiedlichen Drehzahlminderungsverhältnissen
Title (fr)
Démarreur disposant de deux réducteurs de vitesse planétaire avec des rapports de réduction de vitesse différents
Publication
Application
Priority
JP 2007314786 A 20071205
Abstract (en)
[origin: EP2067984A2] A starter (1) is disclosed which includes a speed reducer assembly and a speed reduction ratio shifter (34, 36, 37). The speed reducer assembly includes first and second planetary speed reducers respectively having first and second speed reduction ratios. The speed reduction ratio shifter shifts the speed reduction ratio of the speed reducer assembly between the first and second speed reduction ratios. The speed reduction ratio shifter includes a gear engaging member (34) and a driver. The driver includes a first spring (36) made of a shape memory alloy and a second spring (37) made of an ordinary spring material, which are respectively disposed on opposite sides of the gear engaging member in the axial direction of an armature shaft (2b). The driver drives the gear engaging member to move in the axial direction by using the difference between restoring forces of the first and second springs.
IPC 8 full level
F02N 15/04 (2006.01)
CPC (source: EP)
F02N 15/046 (2013.01); F02N 11/00 (2013.01); F02N 15/063 (2013.01)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 2067984 A2 20090610; EP 2067984 A3 20100519; EP 2067984 B1 20120530; JP 2009142035 A 20090625; JP 4957530 B2 20120620
DOCDB simple family (application)
EP 08020899 A 20081202; JP 2007314786 A 20071205