摘要:
Embodiments of the invention provide a control valve including a control valve body having an inlet passage, an outlet passage, a workport, and a chamber arranged in a fluid path between the workport and the outlet passage. The control valve further includes an annular poppet slidably received within the chamber and to selectively engage a poppet seat to inhibit fluid flow through the fluid path when a pressure in the fluid path is less than a predefined pressure level, and a valve element slidably received within the control valve body to selectively provide fluid communication between the inlet passage and the workport and selectively provide fluid communication between the workport and the outlet passage along the fluid path. The poppet is biased towards the poppet seat by an elastic element.
摘要:
A thermoregulator comprises a valve body (102) internally provided with an accommodating cavity (108) and a thermal element (204, 205) mounted in the accommodating cavity (108). The accommodating cavity (108) is in communication with the exterior through at least three ports such as a first port (104), a second port (105), and a third port (106). The thermal element is mounted in the valve body (102) through two elastic components (203, 206). A fixedly mounted annular closure ring (111) is disposed in the accommodating cavity (108). At least most of the thermal element (204, 205) is located between the third port (106) and the closure ring (111). Through such arrangement, rapid heating of transmission fluid is ensured when the temperature of the transmission fluid is low, thereby ensuring the lubrication performance of a transmission. In addition, a processing precision requirement for components and parts can be reduced and manufacturing and mounting are more convenient.
摘要:
A torque motor valve actuator includes a first magnetic pole piece, a second magnetic pole piece, an armature, and a coil. The first magnetic pole piece is of a first magnetic polarity. The second magnetic pole piece is of a second magnetic polarity, and is spaced apart from the first magnetic pole piece to define a gap. The armature is rotationally mounted and disposed in the gap between the first and second magnetic pole pieces. The coil surrounds at least a portion of the armature and is disposed such that it is not surrounded by either the first magnetic pole piece or the second magnetic pole piece. The coil is adapted to receive electric current and is configured, upon receipt thereof, to generate a magnetic force that causes the armature to rotate.
摘要:
A modular valve system is configured as a multi-way valve (9) having a valve body (1) and at least four ports (2) for switching over between or mixing fluids. At least two valve cores (3) are arranged in the valve body (1). Each valve core (3) has at least one linear actuator (4) and one axially sealing seal element (5) movable by the actuator between two corresponding axially spaced seal seats (8). The valve system may be made modular by dividing the valve body (1) into modular sections with each section having one valve core.
摘要:
The control valve (R) comprises a body (10) having: an outlet nozzle (12) connected to a flexible conduct (20) whose outlet end (22) is connected to a pistol (30); a sealing seat (S); and a movable sealing means (V) to be displaced between closing and opening positions of the seat (S). A rod (90) has an inner end (91) coupled to the movable sealing means (V), an outer end (92), and a median region (93) mounted in the body (10). The rod (90) may be displaced, in a vertical plane and around a median transversal axis, so as to have its outer end (92) conducted to lowered and raised positions, in which the movable sealing means (V) is conducted to the closing and opening positions of the seat (S). A support (100) is provided in the outer end (92) of the rod (90), in order to receive and retain the pistol (30) when in an inoperative condition, producing the closing of the control valve (R).
摘要:
An electromagnetic valve comprises a yoke (10); a magnet (30a, 30b) having pole pieces (50a, 50b) defining a gap; a flexure assembly (40) having one end attached to the yoke, such that part of the flexure assembly extends into the gap, the flexure assembly having at least one resilient portion formed of a resilient material and at least one magnetisable portion, wherein that part of the flexure assembly that extends into the gap is movable between the pole pieces through an intermediate position towards which it is resiliently biased such that a resilient mechanical force is generated by deflecting the resilient portion from an undetected position; and means (20) for polarising the magnetisable portion of the flexure assembly so that the part of the flexure assembly that is movable between the pole pieces is attracted towards a pole piece by a magnetic force, thereby defining a valve state; wherein the magnetisable portion and the resilient portion of the flexure assembly are configured such that the magnetic force defining the valve state is greater than the resilient mechanical force.