Hydraulic heavy equipment

Details Hydraulic heavy equipment Hydraulic heavy equipment

1997-07-24

1998-10-27

Nguyen, Hoang

Motors: expansible chamber type

Working member position feedback to motive fluid control

Electrical input and feedback signal means

91392, 91511, F15B 1316

Patent

active

058264833

ABSTRACT:
In hydraulic heavy equipment, a working device has a boom, an arm and a bucket. An operating device has the same link structure as in the working device. By operating the working device, control valves are operated and the working device functions in a similar manner to the operating device. The movement of the working device is transmitted, and the control valves are brought back to the neutral position. Therefore, the working device follows up the operating device, and functions in the same manner as the operating device.

REFERENCES:
patent: 4516469 (1985-05-01), Sato et al.
patent: 4773302 (1988-09-01), Mizota et al.
patent: 4863337 (1989-09-01), Ishiguro et al.
patent: 5189940 (1993-03-01), Hosseini et al.
patent: 5617723 (1997-04-01), Hosseini et al.
patent: 5701793 (1997-12-01), Gardner et al.

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