Liquid ejection device for a vehicle washing system and method for its operation
US12115951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2019 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Aug 4, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid ejection device for a vehicle washing system includes a reservoir volume, a first supply line coupled upstream to the reservoir for supplying a first liquid with a first supply rate and a second supply line coupled upstream to the reservoir for supplying a second liquid with a second supply rate. The device further comprises a removal line coupled downstream to the reservoir with a blocking device for blocking liquid flow through the removal line, and a detection unit for detecting liquid volume in the reservoir and a mixing ratio of the liquids introduced into the reservoir; and a removal device for ejecting the liquid found in the reservoir through an ejection element coupled to the removal line. In addition, the device comprises a control unit which is coupled to the detection unit and the removal device and is set up to start an ejection process by the removal device upon reaching a predetermined liquid volume and a predetermined mixing ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.