Grit-dispensing device for rail vehicles
US11267284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2018 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Aug 15, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61C15/102
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A grit dispensing device for rail vehicles, having a grit tank; a compressed air source connected to a dispensing line for the grit via a pressure line and a nozzle; an intake channel via which grit can be conveyed from the grit tank into the dispensing line; a bypass which leads from the pressure line to a point in the dispensing line downstream of the mouth of the intake channel so as to bypass the nozzle and the passage cross-section of which can be controlled by a valve; and an electronic control device for the valve, the control device being designed to open and close the valve in intervals with a frequency adapted to the length of the dispensing line in such a way that grit charges which are ejected in the individual open periods of the valve consolidate in the dispensing line to form a steady grit flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.