Piston pump, and assembly method of electric motor for...

B - Operations – Transporting – 60 – T

Patent

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Details

B60T 13/16 (2006.01) B60T 8/40 (2006.01) B60T 13/20 (2006.01) B60T 17/02 (2006.01) F04B 17/03 (2006.01) H02K 7/08 (2006.01) H02K 7/14 (2006.01) H02K 15/16 (2006.01)

Patent

CA 2207858

An electric motor for driving a piston pump assembled thereto, wherein load from the piston pump acts radially on an armature shaft, is assembled such that the outer ring of a first bearing is press fit to a yoke, and the outer ring of a second bearing is press fit to pump housing, in which state press fitting of one end of the armature shaft is conducted to the first bearing inner ring, and press fitting of the other end of the armature shaft is conducted to the second bearing inner ring, thus eliminating wobbling of the armature shaft in the axial and radial directions.

Un moteur électrique pour entraîner une pompe à pistons qui y est rattachée, dans lequel la charge de la pompe à pistons agit radialement sur un arbre d'induit, est assemblé de façon à ce que la bague extérieure d'un premier roulement soit ajustée à la presse à une fourche, et la bague extérieure d'un second roulement soit ajustée à la presse au corps de la pompe. L'ajustement à la presse d'une extrémité de l'arbre d'induit est dirigé vers la bague intérieure du premier roulement, tandis que l'ajustement à la presse de l'autre extrémité de l'arbre d'induit est dirigé vers la bague intérieure du second roulement, éliminant ainsi la rotation déséquilibrée, dans les directions axiales et radiales, de l'arbre d'induit.

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