36results about How to "Reduce hydraulic power" patented technology

The invention discloses a turning gradient control valve, which is designed to provide a two-functional turning gradient control valve which can absorb vibration of the system, has low noise and energy saving, and can be applied to a static signal type and a dynamic signal type, wherein a first hole (P) in communication with a first throttle groove (4a1) and a second throttle groove (4a2) of a second hole (CF) is arranged on a beading at the right side along the circumference direction; the first hole (P) is in communication with a third throttle groove (4b1) and a fourth throttle groove (4b2) of a third hole (EF), wherein the first throttle groove (4a1) and the second throttle groove (4a2) are matched with a throttle side (5a) of a first sunken cutting groove of a valve body (5a) to form a valve port through which the first hole (P) is led to the second hole (CF); the third throttle groove (4b1) and the fourth throttle groove (4b2) are matched with a throttle side (5b) of a second sunken cutting groove of the valve body (5) to form a valve port through which the first hole (P) is led to the third hole (EF); the left end of the valve core (4) is provided with an asymmetric composite damper (3) while the right end of the valve core (4) is provided with a first damping hole (6).

A control system may be used to control actuators that actuate movement of flight control surfaces of an aircraft. Each actuator is couplable to a flight control surface and includes a motion control assembly having a hydraulic motor and a drive path from the hydraulic motor to the flight control surface. Each hydraulic motor includes an extend port and a retract port. The system includes a hydraulic control module fluidly connected to the extend port and the retract port of each hydraulic motor and a controller operable to output hydraulic power from the hydraulic control module to the motion control assembly to actuate movement of the flight control surfaces. The controller is configured to identify an actuator that positionally leads the other actuators and reduce hydraulic power to the motion control assembly assigned to such actuator.

The present invention relates to current association and unloading control method for multiple-pump hydraulic system, especially for loading machine and other heavy mechanical apparatus. The present invention uses hydraulically controlled change valve as current associating and unloading control element for multiple-pump hydraulic system, unlike available systems, which has unloading valve. Thus,the current associating and shutting of the pumps may be controlled at will to lower the power consumption and heat producing amount, raise the reliability of element and system and lower cost.

The invention discloses a movable valve seat type spring loaded type relief valve. The movable valve seat type spring loaded type relief valve comprises a valve body provided with a cavity body. A water inlet and a water outlet communicated with the cavity body are formed in the valve body. A valve core and a valve seat are arranged inside the cavity body of the valve body. A spring is arranged inside a cavity of the interior of a front end cover. A spring ejection rod is installed at the top of the spring, and a spring base is arranged at the bottom of the spring. One end of the spring abuts against the spring ejection rod, and the other end of the spring abuts against the spring base. The valve seat comprises a two-stage step structure. The ascending end of the step structure is in clearance fit with the valve body and a sleeve. According to the movable valve seat type spring loaded type relief valve, a valve core king-rod structure is designed in the position of an injection inlet where fluid enters the valve core through the valve seat, so that the fluid power of the sprayed fluid is conducted to the valve core through a valve core king-rod, and the impact force and the corrosion to the valve seat by the fluid power are reduced; in addition, the step structure part of the valve seat makes contact with the two-stage conical surfaces of the valve core, so that a two-stage throttling valve port structure is formed between the valve seat and the valve core, and the effective partial pressure can be achieved.

The invention discloses a kind of high-speed high flux gas slide valve. Two electromagnets are set in the valve cavity at the two sides of the valve core symmetrically, the hollow valve core has a valve cover, one end of the valve core can open and close with one end of the electromagnet, there is a magnetic pole at the other end of the valve core, the magnetic pole can open and close with the other electromagnet, there are noncircular gap valve meatuses with the same quantity, breadth and interval on the interface of valve core and valve cover, the valve meatus connects with the oulet. The hollow valve can decrease the weight; the availability of the electromagnet power is high.

The invention discloses a novel overflow valve. The novel overflow valve comprises a valve body, a valve core, a valve seat, a valve cover, an adjusting stud, an adjusting nut, an adjusting cap, a flange, a left spring seat, a right spring seat and a spring, wherein the valve core comprises five sections which are a hemispherical section, a circular truncated cone-shaped section A, a cylinder connection section, a circular truncated cone-shaped section B and a guide cylinder section from the left part to the right part in sequence; a hemispherical groove is formed in the outer surface of the circular truncated cone-shaped section A; a radial through-flow hole A and a radial through-flow hole B are formed in the cylinder connection section; the radial through-flow hole A and the radial through-flow hole B are vertically formed in the cylinder connection section; a guide circular groove is formed in the guide cylinder section; an axial through-flow hole is formed in the valve core in the center line direction; one end of the axial through-flow hole is communicated with the outer part of the guide cylinder section, and the other end of the axial through-flow hole is communicated with the radial through-flow hole A; an elastic gasket is mounted in a position where the valve seat is connected with the valve cover. The novel overflow valve can reduce gas etching, lower vibration and noise, and improve the sealing performance.

The invention discloses an electromagnetic directional valve which comprises a valve body, a main valve core, an electromagnet and a main restoring spring, wherein the main valve core is positioned in the valve body and can move back and force along an axial channel of the valve body. The electromagnetic directional valve is characterized by also comprising a side cover, a pilot valve core and a pilot restoring spring, wherein the side cover is arranged on one side of the valve body; the pilot valve core can move back and force in an axial duct; the electromagnet is arranged on the other side of the side cover; and a push rod of the electromagnet pushes against the pilot valve core. Compared with the prior art, the electromagnetic directional valve provided by the invention has the advantages that with adoption of a hydraulic amplification principle and combination of a pilot control structure, an original working stroke is greatly shortened, and thus the miniaturization design on the electromagnetic directional valve is favorable; and meanwhile, the working stroke is shortened, and thus power can be greatly reduced.

A shredding device comprising a drum having a central hub rotating around an axis on which a plurality of discoid elements are mounted adjacent, able to rotate solidly together and carrying peripherally beating elements. Each discoid element comprises a set of beating elements which comprises at least a pair of beating elements and, along the axis, the pairs of beating elements of the discoid elements are disposed angularly staggered with respect to the same axis.

The invention discloses a proportional reversing valve lightweight valve element based on the SLM technology and a proportional reversing valve. The proportional reversing valve lightweight valve element comprises a valve element main body. A plurality of regulator orifice sets are formed outside the valve element main body in the axis direction of the valve element main body. The regulator orifice sets are composed of a plurality of regulator orifices evenly distributed in the circumferential direction of the valve element main body. The two sides of each regulator orifice are both provided with bulges. All the bulges are of a hollowed-out structure. A chamfer with the section being in a quadratic parabola shape is formed between every two adjacent bulges. According to the valve element, provided with the bulges of the hollowed-out structure and the chamfers with the section being in the quadratic parabola shape, of the proportional reversing valve, the fluid motion state can be effectively changed, and fluid power is reduced; and meanwhile, the mass of the valve element can be remarkably lowered, the frequency response can be improved, friction force during motion is reduced, the using performance of the proportional reversing valve is remarkably improved, and the service life of the proportional reversing valve is remarkably prolonged.

The invention discloses a high-speed switch valve. A valve sleeve and a main spool are arranged coaxially. Two ends of the main spool are connected with a valve body. A left armature and a right armature are connected with two ends of the valve sleeve. The left end of the main spool is provided with a spool left drainage channel whereby a main pressure cavity is communicated with a port P. The right end of the main spool is provided with a spool right drainage channel whereby a main return oil cavity is communicated with a port T. A port A is communicated with an auxiliary pressure cavity and an auxiliary return oil cavity through the left and right drainage channels respectively. Opening and closing of the valve is switched through the valve sleeve; hydraulic force of the valve is reduced; the valve sleeve and the main spool are in sliding fit, so that leakage during switching is avoided; flow from the port P and the port A is doubly increased through the spool left drainage channel and the auxiliary pressure cavity, and transient hydraulic force borne by the valve sleeve is reduced. The high-speed switch valve has the advantages such as simple structure, high machinability and simplicity of operation; the valve can be opened and closed fast.