Title:
往復ポンプにおける複数の成分材料を分配するための方法及び該ポンプの切替えを補償するための方法
Document Type and Number:
Japanese Patent JP4965796
Kind Code:
B2
Abstract:
The controller of the plural component proportioner (10) dispenses both components (or all three if a three component material) simultaneously (at least initially) and maintains ratio at the end of each predetermined volume of material by determining which component pump (12) has reached the desired amount of travel (given the resolution available) and using a valve (16) to shut off output of that pump until the other side has caught up. At pump changeover, the output valve for that pump (12) is shut off and the air motor (12a) allowed to run until travel stops to account for cavitation, air entrainment, compressibility, or poor inlet check performance.
Inventors:
Patman, David
Nguyen, Boo
Nguyen, Boo
Application Number:
JP2003546647A
Publication Date:
July 04, 2012
Filing Date:
November 27, 2002
Export Citation:
Assignee:
Graco Minnesota Incorporated
International Classes:
B67D7/70; B01F23/10; F04B11/00; F04B41/02; F04B49/03; F04B49/22; G05D11/00; G05D11/13
Domestic Patent References:
| JP2000157856A | ||||
| JP2000024583A |
Foreign References:
| US5605252 |
Attorney, Agent or Firm:
Okada International Patent Office