Title:
【発明の名称】低脈流ポンプ
Document Type and Number:
Japanese Patent JP2604362
Kind Code:
B2
Abstract:
A low pulsation pump device (10) has a pulse motor (1), two plungers (7, 8) adapted to be driven by the pulse motor, a pressure sensor (9) disposed on the output side of the plungers, a storage (6) for storing values of pressures detected by the pressure sensor during each of a number of periods, and a pulse control (5) for creating, in each period, a high speed region during which the rotational speed of the pulse motor is increased. The pulse control has an optimization function which determines, on the basis of pressure information which was obtained during the last period, the location of a high speed region in each period in such a manner as to reduce pulsations.
Inventors:
Taro Nogami
Nishi Tarumi Go
Takakazu Seki
Nishi Tarumi Go
Takakazu Seki
Application Number:
JP25138186A
Publication Date:
April 30, 1997
Filing Date:
October 22, 1986
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
B01D15/08; F04B9/04; F04B11/00; G01N30/32; F04B13/00; (IPC1-7): F04B11/00; F04B9/04; F04B13/00; G01N30/32
Domestic Patent References:
| JP55128678A | ||||
| JP5698582A | ||||
| JP58148958A | ||||
| JP6149148A | ||||
| JP60252133A |
Attorney, Agent or Firm:
Akio Takahashi