| 摘要 |
PROBLEM TO BE SOLVED: To provide a washer pump in which thermal resistance can be enhanced at a bearing holding portion to which a bearing is fitted. SOLUTION: Inside of a resin case 11 is partitioned by a partition wall 11c into a motor chamber 11A containing an armature 20 rotating through conduction and a pump chamber 11B containing an impeller 22 coupled with the armature shaft 21 of that armature and rotating. The armature shaft 21 is supported rotatably through a bearing 30 fitted in the bearing holding portion 14 of a resin cover 13 covering the opening 11b of the case and a bearing 31 fitted in the bearing holding portion 12 on the partition wall of the case. Cleaning liquid W is sucked from a liquid suction opening 16 through rotation of the impeller and delivered from a liquid delivery opening 18 in the washer pump 10. The bearing 30 is fitted removably in the bearing holding portion 14 of the cover 13 through a ring-like heat insulation member 32. COPYRIGHT: (C)2007,JPO&INPIT
|
