Title:
流体の流れ内に添加剤を導入するための流量調節ポンプ
Document Type and Number:
Japanese Patent JP2004502256
Kind Code:
A
Abstract:
The invention concerns a device for varying the dosage of an additive (A) in a main flow (P) of liquid, the proportioning being provided by a pump (1) driven by the main flow, the pump comprising a first intake (2) for the main flow, a second intake (3) for the additive and an outlet for the dosed mixture. A branch pipe (5) of the main flow is provided between a zone (6) located upstream of the first intake (2) and a zone (7) located downstream of the outlet (4), so as to enable a parallel flow not comprising the additive. Periodic control means (C) for the branch pipe (5) and the first intake (2) of the pump are also provided so that each control period comprises at least a phase (Ud1) for which the branch pipe (5) is open and the first intake (2) is closed, and another phase (Ud2) for which the branch pipe (5) is closed while the first intake (2) is open.
Inventors:
Yurtia, Stephan
Application Number:
JP2002507172A
Publication Date:
January 22, 2004
Filing Date:
June 29, 2001
Export Citation:
Assignee:
Dosatron, International
International Classes:
F04B13/02; G05D11/13; (IPC1-7): G05D11/13
Domestic Patent References:
| JPS6324481Y2 | 1988-07-05 | |||
| JPS55131814A | 1980-10-14 | |||
| JPS6324481Y2 | 1988-07-05 | |||
| JPS55131814A | 1980-10-14 | |||
| JPS6312232A | 1988-01-19 |
Attorney, Agent or Firm:
Yuzo Sanada
Nobuhiko Nakajima
Ohara Shizuo
Nobuhiko Nakajima
Ohara Shizuo