Shuttle valve
A shuttle-shaped, spring-seat technology, applied to multi-way valves, valve devices, engine components, etc., can solve the problems of heavy system weight, high maintenance cost, etc., and achieve the effect of weight reduction and structural simplification
Active Publication Date: 2013-04-24
XIAN AVIATION BRAKE TECH
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Problems solved by technology
[0006] In order to overcome the shortcomings of heavy system weight and high maintenance cost in the prior art, the present invention proposes a shuttle valve
Method used
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Embodiment 1
[0019] This embodiment is a KY-104 shuttle valve, including a housing 1, a valve seat 2, a valve core 3, an oil nozzle 4, a pressure core 5, a steel ball 6, a spring 7, a spring seat 8, a sealing ring 9 and Plug 10.
[0020] The housing 1 is the carrier of this embodiment. The valve seat 2 is symmetrically installed at both ends of the housing 1 . The oil nozzle 4 and the spring seat 8 are symmetrically installed in the middle of the housing 1; the spring 7 and the steel ball 6 are located in the spring installation hole 12 at one end of the spring seat 8, and the pressure core 5 is located in the pressure core installation hole at the other end of the spring seat 8 11, and the pressure core body 5 is fixed in the pressure core body installation hole 11 through a plug; the spring installation hole 12 and the pressure core body installation hole 11 are connected through a through hole 15. The valve core 3 is installed in the housing 1 . The spring seat 8 is connected with th...
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The invention discloses a shuttle valve. A pressure core body is positioned in a pressure core body mounting hole of a spring base; the spring base is divided into a spring mounting hole and the pressure core body mounting hole which are mutually communicated; a group of oil holes is uniformly distributed on the hole wall of one end of the spring mounting hole of the spring base; inlets of the oil holes are positioned on the end face of the spring mounting hole; outlets of the oil holes are communicated with the spring mounting hole; and the distance from the centers of the oil hole outlets to the end face of the spring mounting hole is more than the travel of the upper surface of a steel ball in the spring mounting hole. A pressure sensor and a signal wire are integrated in the spring base of the shuttle valve; at the same time the group of oil holes is additionally formed on the spring base, so the input pressure of the shuttle valve can be transmitted to the pressure sensor, the pressure is converted into a pressure signal through the pressure sensor, the pressure signal is transmitted to a system control unit; the structure of a hydraulic application system or a pneumatic application system is simplified; the weight of the hydraulic application system or the pneumatic application system is reduced; the connection reliability of the system is improved; and the maintenance cost of a product is reduced.
Description
technical field [0001] The invention relates to an aviation hydraulic braking system, in particular to a shuttle valve used in the aviation hydraulic braking system. Background technique [0002] The currently commonly used shuttle valve is a T-shaped three-way structure, with input ports at both ends, output ports at the third end, and a spool inside. The input end with low pressure is blocked, so that the input fluid with high pressure flows out from the output end through the gap between the valve core and the shell. [0003] Another kind of shuttle valve requires the pressure difference between the two input ends to reach a certain value before the valve core can move. Its common structural feature is that there is a peak-shaped structure on the valve core. The spring force acts on the peak-shaped structure of the spool. When the input pressure is greater than or equal to the force of the spring, the spool moves and blocks the input end with low pressure, so that the in...
Claims
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Patent Timeline
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Inventor 鹿令忠何学工张谦
Owner XIAN AVIATION BRAKE TECH