Shandong Keystone Hydraulic Co.,Ltd
| Supply Ability | 3000pcs per month |
| Packaging Details | Case, Pallet |
| Name | Hydraulic Closed pumps |
| Model | K4VG71 |
| Work mode | Close circuit |
| Rated Speed | 3300 rpm |
| Cut off Pressure | 234 bar |
| Control mode | Output volume control of electrical ratio(DC)12V:Deutsch DT04-2P,2pin |
| Filter mode | Integrated pressure oil fitration |
| Input shaft | 14 T 12/24 DP |
| use | Aaerospace engineering |
| Brand Name | Kerstern |
| Model Number | K4VG40 |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Supply Ability | 3000pcs per month | Packaging Details | Case, Pallet |
| Name | Hydraulic Closed pumps | Model | K4VG71 |
| Work mode | Close circuit | Rated Speed | 3300 rpm |
| Cut off Pressure | 234 bar | Control mode | Output volume control of electrical ratio(DC)12V:Deutsch DT04-2P,2pin |
| Filter mode | Integrated pressure oil fitration | Input shaft | 14 T 12/24 DP |
| use | Aaerospace engineering | Brand Name | Kerstern |
| Model Number | K4VG40 | Certification | ISO9001 |
| Place of Origin | CHINA | ||
| High Light | Aerospace Engineering closed circuit hydraulic pump ，3300 Rpm closed circuit hydraulic pump ，234 Bar closed circuit hydraulic pump | ||
Aerospace Engineering 3300 Rpm Hydraulic Closed Pump With 234 Bar
The hydraulic closed pumps in aerospace engineering have primary applications in the following areas:
1 Aircraft Landing Gear Systems: Hydraulic closed pumps are extensively used in aircraft landing gear systems. They provide the necessary hydraulic power to operate the landing gear, including the extension and retraction of landing gear struts and the deployment of brakes. These pumps ensure the safe and reliable operation of the landing gear, contributing to the aircraft's takeoff, landing, and ground handling capabilities.
2 Flight Control Systems: Hydraulic closed pumps play a vital role in aircraft flight control systems. They deliver hydraulic power to actuate the control surfaces such as ailerons, elevators, and rudders. These pumps enable precise control and maneuverability of the aircraft during flight, allowing pilots to make smooth and accurate flight adjustments.
3 Thrust Reverser Systems: In certain aircraft, hydraulic closed pumps are utilized in the thrust reverser systems. These systems help to redirect the engine thrust forward upon landing, aiding in deceleration and enhancing the aircraft's braking capability. Hydraulic power is crucial for the operation of thrust reversers, and the pumps ensure their reliable performance.
4 Hydraulic Actuators: Hydraulic closed pumps are employed in various hydraulic actuators throughout the aircraft. These actuators are responsible for performing critical functions such as operating flaps, slats, spoilers, and other movable surfaces. The pumps supply the required hydraulic pressure to actuate these components, enabling precise control of the aircraft's aerodynamic characteristics during different flight phases.
The utilization of hydraulic closed pumps in aerospace engineering ensures the efficient and reliable operation of landing gear systems, flight controls, thrust reversers, and hydraulic actuators. These pumps contribute to the safety, maneuverability, and performance of aircraft in both commercial and military aviation applications.
size :
| Size | K4VG71 | ||
| Displacement | Vg max | cm3 | 71 |
| variable pump | |||
| boost pump (20 bar) | Vg Sp | cm3 | 19.6 |
| Speed | conti. | rpm | 3300 |
| maximum Vg max | |||
| limited maximum | limited | rpm | 3600 |
| intermittent max. | Min. | rpm | 4100 |
| nmin | rpm | 500 | |
| Flow | l/min | 234 | |
| continuous and Vg max | |||
| Power | 400 bar | kW | 156 |
| continuous Vg max | |||
| Torque | 400 bar | Nm | 451 |
| at Vg max | 100 bar | Nm | 112.8 |
| Moment of inertia | JGR | kgm2 | 0.0097 |
| Angular acceleration | α | rad/s2 | 21000 |
| Filling capacity | V | L | 1.3 |
| Weight approx. | m | kg | 50 |
Features:
Technical Data
Table of values (theoretical values, without efficiency and tolerances; values rounded)
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
18000000-20000000
Employee Number:
100~300
Ecer Certification：
Verified Supplier
Jining Keystone Hydraulics Co., Ltd. is located in the hometown of Confucius and Mencius -- Jining economic and technological development zone, Shandong province, near the Beijing-Hangzhou Grand Canal, only 30 minutes away from Jining Qufu airport and Beijing-Shanghai high-speed railway station, onl... Jining Keystone Hydraulics Co., Ltd. is located in the hometown of Confucius and Mencius -- Jining economic and technological development zone, Shandong province, near the Beijing-Hangzhou Grand Canal, only 30 minutes away from Jining Qufu airport and Beijing-Shanghai high-speed railway station, onl...
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