Dual output window washer pump for an automotive vehicle
US5984644A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Dec 16, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2250/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dual outlet washer pump for an automotive vehicle to alternately supply a stream of washer fluid to separate locations has a valve element with a frame portion surrounding a flat, flexible membrane mounted in vertically plainer fashion in a discharge section, which is movable from a center position unobstructing either of a pair of discharge ports to a first position in which fluid flow from a pumping chamber enters a first discharge side of the discharge section to directly impact a first side of the membrane causing flexure thereof away from the first discharge port to fluid flow there through and can currently causes contact of a second side of the membrane within an inner, lateral side of the discharge section adjacent the second discharge port to block fluid flow there through, the membrane opening the second discharge port and closing the first discharge port in the like manner when an impeller pump is rotated in a counter direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.