Title:
METHOD FOR CONTROLLING NUMBER OF REVOLUTIONS OF DRAINAGE PUMP
Document Type and Number:
Japanese Patent JP3234969
Kind Code:
B2
Abstract:
PURPOSE: To improve operability and stability during control of the number of revolutions of a drainage pump by simultaneously controlling the gear shift operation rods of a plurality of variable speed fluid coupling in such a way to input a control signal to a single control motor.
CONSTITUTION: The output rotary shaft 3A of a reduction gear 3 is coupled to the main shaft 2A of a drainage pump 2, first and second variable speed fluid couplings 9 and 10 are located in a series between the input rotary shaft 3B of the reduction gear 3 and the output rotary shaft 6A of a prime mover 6 consisting of a diesel engine. The gear shift operation rod 71 of each of the first and second variable speed fluid couplings 9 and 10 is connected to the output rotary shaft 10A of a single control motor 10 through a power transmission mechanism, and float pipes 70 coupled to the two gear shift operation rods 71 are simultaneously moved forward and backward by the same amount.
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Inventors:
Hirohiko Furukawa
Application Number:
JP16388495A
Publication Date:
December 04, 2001
Filing Date:
June 29, 1995
Export Citation:
Assignee:
Kubota Corporation
International Classes:
F04D29/043; F04D13/02; F04D13/14; F04D15/00; F04D29/04; F16D31/00; (IPC1-7): F04D13/02; F04D15/00; F04D29/04; F16D31/00
Domestic Patent References:
| JP777191A | ||||
| JP534156A | ||||
| JP55135263A | ||||
| JP62101922A | ||||
| JP5627428U | ||||
| JP62105394U |
Attorney, Agent or Firm:
Koichi Suzue (1 person outside)