Patent ID: 8480380
Filing Date: 2013-07-09
Classification: B60S,Y10T

Abstract:
1. A washer pump apparatus having a washer fluid heating function, comprising: a housing having an inlet provided at a first end thereof to permit a washer fluid to flow thereinto, and an outlet provided at a second end thereof to permit the washer fluid to flow out therefrom; a heater unit disposed in the housing on a course extending from the inlet substantially to the outlet to heat the washer fluid passing through the heater unit, and having a hollow portion therein; a path member inserted into the hollow portion, and having on an inner circumference thereof a passage through which the washer fluid passes; wherein a heating area increasing portion is formed in a helical shape on the inner circumference of the path member, and an impeller unit provided in the housing and supplying the washer fluid from the inlet to the outlet; a check valve provided at a portion of the outlet, and being open when a discharge pressure of the washer fluid is a preset value or more; and a control unit selectively operating the impeller unit and the heater unit; wherein the impeller unit comprises a vortex generating portion which is disposed in the passage of the path member such that the vortex generating portion does not interfere with the heating area increasing portion, and generates a vortex of the washer fluid.