Pumps – Condition responsive control of drive transmission or pump... – Adjustable cam or linkage
Patent
1975-10-02
1977-05-03
Croyle, Carlton R.
Pumps
Condition responsive control of drive transmission or pump...
Adjustable cam or linkage
60444, 60447, F04B 4900, F16D 3102
Patent
active
040211541
ABSTRACT:
A servomechanism for pump capacity control includes an adjustable throttle of the "nozzle-gate" type formed with two operating slots communicating through two fixed throttles with duct, a source of supply feeding the duct, an input signal converter whose movable element is connected to the gate of the nozzle-gate throttle and a four-slot, five-line distributor whose control spaces are in communication through two fixed throttles with the duct of the source of supply, two operating slots being formed in the adjustable throttle, whereas its operating spaces communicate with the corresponding spaces of an actuating hydraulic cylinder. The latter is connected to the control element and, by a mechanical position feedback, to the gate. The mechanical position feedback is constituted by a bar which is linked to the movable element of the hydraulic cylinder and has a slanted surface. The slanted surface interacts with a spring-loaded pusher, whose springs act on the gate. The servomechanism incorporates a device which ensures linear dependence of the speed of hydraulic cylinder movement on the displacement of the gate away from the neutral position, and acts on the slide valve of the four-slot five-line distributor. The servomechanism additionally includes a mechanism for limiting the power of the controlled pump, the mechanism being linked mechanically with the hydraulic cylinder and the gate of the nozzle-gate throttle, and hydraulically with the discharge line of the controlled pump.
REFERENCES:
patent: 3065735 (1962-11-01), Chaves et al.
patent: 3270508 (1966-09-01), Smith et al.
patent: 3416452 (1968-12-01), Misulis
Chuprakov Jury Ivanovich
Gorchakov Mikhail Fedorovich
Kabakov Mikhail Grigorievich
Kashtanov Leonid Nikolaevich
Morozov Viktor Prokofievich
Croyle Carlton R.
LaPointe G. P.
LandOfFree
Servomechanism for pump capacity control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Servomechanism for pump capacity control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Servomechanism for pump capacity control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-342585