Dosing pump
US6935846B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H25/2252
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a dosing pump comprising a chamber, an inlet valve located in an inlet pertaining to said chamber, and an outlet valve located in an outlet pertaining to said chamber. The chamber is divided into two partial chambers (2, 18) by a separating means. Said separating means comprises a separating valve (38) which opens in the direction of conveyance and which connects the partial chambers (2, 18). The separating means can be moved back and forth in the direction of conveyance and is connected to a drive device for this purpose. When the separating means is moved in the direction of conveyance, dosing liquid is sucked in via the inlet valve (6) and is simultaneously discharged via the outlet valve (28). This process is carried out smoothly and continuously. When the separating means is moved back counter to the direction of conveyance, the dosing liquid remains virtually still in the chamber which is formed out of the two partial chambers (2, 8), in such a way that, on the whole, hardly any dosing liquid moves except for the separating means moving through the dosing liquid in the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.