Ventilation valve arrangement and transport container with a ventilation valve arrangement
US8562399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2009 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Jan 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87515
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention concerns a ventilation valve arrangement (1) with two valve openings (5, 6) in a valve plate (3), the opening degrees of said openings being controllable by means of a valve element, which is rotatable in relation to the valve plate (3). It is endeavored to create a large range of control opportunities in a cost-efficient manner. For this purpose it is provided that in parallel to at least one valve opening (5, 6) a ventilation channel (9) is arranged, whose flow cross-section is adjustable by means of a motor controlled valve (10). The ventilation valve arrangement (1) can be dimensioned so that at the same time it serves as underpressure valve for a transport container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.