Product Description
Company Info
Product Description
Pascal's law is the basis of hydraulic drive systems. As the pressure in the system is the same, the force that the fluid gives to the surroundings is therefore equal to pressure x area. In such a way, a small piston feels a small force and a large piston feels a large force.
The same counts for a hydraulic pump with a small swept volume, that asks for a small torque, combined with a hydraulic motor with a large sweptvolume, that gives a large torque.
In such a way a transmission with a certain ratio can be built.
Most hydraulic drive systems make use of hydraulic cylinders. Here the same principle is used- a small torque can be transmitted in to a large force.
By throttling the fluid between generator part and motor part, or by using hydraulic pumps and/or motors with adjustable swept volume, the ratio of the transmission can be changed easily. In case throttling is used, the efficiency of the transmission is limited; In case adjustable pumps and motors are used, the efficiency however is very large. In fact, up to around 1980, a hydraulic drive system had hardly any competition from other adjustable (electric) drive systems.
Nowadays electric drive systems using electric servo-motors can be controlled in an excellent way and can easily compete with rotating hydraulic drive systems. Hydraulic cylinders are in fact without competition for linear (high) forces. For these cylinders anyway hydraulic systems will remain of interest and if such a system is available, it is easy and logical to use this system also for the rotating drives of the cooling systems.
The same counts for a hydraulic pump with a small swept volume, that asks for a small torque, combined with a hydraulic motor with a large sweptvolume, that gives a large torque.
In such a way a transmission with a certain ratio can be built.
Most hydraulic drive systems make use of hydraulic cylinders. Here the same principle is used- a small torque can be transmitted in to a large force.
By throttling the fluid between generator part and motor part, or by using hydraulic pumps and/or motors with adjustable swept volume, the ratio of the transmission can be changed easily. In case throttling is used, the efficiency of the transmission is limited; In case adjustable pumps and motors are used, the efficiency however is very large. In fact, up to around 1980, a hydraulic drive system had hardly any competition from other adjustable (electric) drive systems.
Nowadays electric drive systems using electric servo-motors can be controlled in an excellent way and can easily compete with rotating hydraulic drive systems. Hydraulic cylinders are in fact without competition for linear (high) forces. For these cylinders anyway hydraulic systems will remain of interest and if such a system is available, it is easy and logical to use this system also for the rotating drives of the cooling systems.
Address:
6 Chaowai Street, 100022, Beijing, China
Business Type:
Manufacturer/Factory
Business Range:
Construction & Decoration
Main Products:
Tower Crane, Hydraulic Cylinder, Hydraulic Sysetem, Test Bench, Plate Bending Machines
Company Introduction:
As an ISO 9001 certified tower cranes manufacturer, Surele has been engaged in the export to clients all over the world especially Russia and has been awarded all the mandatory certificates required by Russian quality control authorities. If the tower cranes listed here are of interest to you, please do not hesitate to contact Surele who will supply top quality tower cranes to you on the most competitive price basis.
Meanwhile, hydraulic elevating system, hydraulic hoisting mechanisms & hydraulic stations are also among the main production scope of Surele.
Currently, Surele′s hydraulic elevating system accounts for a high percentage in the domestic market and there is one patent granted by the national science administration to Surele′s hydraulic hoisting mechanisms. What′s more, Surele′s hydraulic stations have been always the priority option for the most prestigious machinery mills in China. If the above-mentioned products interest you, please feel free to contact Surele for more information.
Meanwhile, hydraulic elevating system, hydraulic hoisting mechanisms & hydraulic stations are also among the main production scope of Surele.
Currently, Surele′s hydraulic elevating system accounts for a high percentage in the domestic market and there is one patent granted by the national science administration to Surele′s hydraulic hoisting mechanisms. What′s more, Surele′s hydraulic stations have been always the priority option for the most prestigious machinery mills in China. If the above-mentioned products interest you, please feel free to contact Surele for more information.
