摘要:
Die Erfindung betrifft eine Betätigungseinrichtung (1, 1a, 1b) für einen Steuerkolben (2) eines Hydraulikventils (3). Durch die Erfindung wird eine schnelle Betätigungseinrichtung (1, 1a, 1b) geschaffen, welche zudem besonders einfach, robust und schmutzunempfindlich ist. Die Lösung erfolgt durch eine Betätigungseinrichtung (1, 1a, 1b) mit - einem Aktuator (6) und einer Platte (5), wobei der Aktuator (6) einen zentralen Bereich der Platte (5) durchbiegen kann; und - einen im Betrieb mit einer Druckflüssigkeit gefüllten Druckraum (7), wobei die Platte (5) den Druckraum (7) abdichtet und der Druckraum (7) den Steuerkolben (2) beaufschlagt, und die Fläche Ap der Platte (5) über dem Druckraum (7) größer als die Querschnittsfläche A K des Steuerkolbens (2) ist.
摘要:
The valve device 1 has a valve main body 2 defining a valve chest 21 provided with a NO outlet port 25 and a NC outlet port 24 through which a fluid flows, and a valve 3 for opening/closing the NC outlet port 24 and NO outlet port 25. The valve 3 includes a diaphragm 6 disposed so as to cover the valve chest 21, and a drive means 4 for pressing the diaphragm 6 to open/close the NC outlet port 24 and NO outlet port 25. The first valve seat 24b and the second valve seat 25b are formed around the NC outlet port 24 and NO outlet port 25. The diaphragm 6 is made of an elastic material of which JIS-K6253 durometer A hardness is A50-A85. The pressure of the diaphragm 6 seated on the first valve seat 24b and the second valve seat 25b is 0.5-1.0 N/sq.mm.
摘要:
A solenoid valve assembly (10) includes an armature (34) having a longitudinal axis (Y) and an ovular cross-section, the armature being moveable along the longitudinal axis from a first position to a second position, and a bobbin including a solenoid coil (36) configured to electromagnetically move the armature when energised. The bobbin defines a recess (62) also having an ovular cross section for receiving the armature and restricting lateral movement of the armature, thereby providing a linear actuation path for the armature along the longitudinal axis. A flux coupler (38) and a flux bracket (40) form a magnetic circuit with the bobbin to electromagnetically move the armature. The flux bracket has a pole piece (42) with a commensurate ovular cross-section that limits the movement of the armature along the longitudinal axis, thereby determining a stroke length of the armature. During manufacture, the flux bracket, and therefore the pole piece, are moved relative to the flux coupler to set the stroke length.
摘要:
In a fuel supply device of a gas turbine engine of the present invention, a fuel divider 66 includes a fuel entrance E1 into which the fuel supplied from a collecting fuel passage 63 is introduced; a pilot port 76 connected to the pilot fuel passage 64; a main port 77 connected to the main fuel passage 65; a pilot port needle valve element 101 which adjusts an opening degree of the pilot port 76; a main port needle valve element 102 which opens and closes the main port 77; and a drive element 100 which is actuated according to the fuel pressure at the fuel inlet E1 to drive the pilot port needle valve element 101 and the main port needle valve element 102.
摘要:
The present invention relates to a fluid selector device for reciprocating compressor that, arranged within the airtight housing of the reciprocating compressor, is able to operate in cooling systems composed of at least two independent lines of equivalent functionality in order to select them through the selective and guided movement (axial or rotative) of displaceable actuator inside valve body that controls the fluid communication or the sealing between input pathways and output pathway of said valve body. It is also described an acoustic filter (of suction) especially suitable for mounting of the fluid selector device for the reciprocating compressor now disclosed.
摘要:
The valve device 1 has a valve main body 2 defining a valve chest 21 provided with a NO outlet port 25 and a NC outlet port 24 through which a fluid flows, and a valve 3 for opening/closing the NC outlet port 24 and NO outlet port 25. The valve 3 includes a diaphragm 6 disposed so as to cover the valve chest 21, and a drive means 4 for pressing the diaphragm 6 to open/close the NC outlet port 24 and NO outlet port 25. The first valve seat 24b and the second valve seat 25b are formed around the NC outlet port 24 and NO outlet port 25. The diaphragm 6 is made of an elastic material of which JIS-K6253 durometer A hardness is A50-A85. The pressure of the diaphragm 6 seated on the first valve seat 24b and the second valve seat 25b is 0.5-1.0 N/sq.mm.
摘要:
Provided is a fluid flow valve including a housing including a fluid inlet port, and a fluid outlet port including an outlet aperture and a valve seating bounding the outlet aperture; a sealing-member configured to be biased, under fluid pressure within the housing, against the valve seating so as to seal the outlet aperture; a sealing-member displacing mechanism secured to the sealing-member so that displacement of the displacing mechanism in a first sense detaches the sealing-member from the valve seating so as to open the outlet aperture, while displacement of the displacing mechanism in an opposite sense allows for the sealing-member to become sealingly biased against the valve seating; and a sealing-member opening mechanism configured for displacing the sealing-member against the biasing effect of the displacing mechanism so as to discharge the fluid flow valve.
摘要:
Provided is a fluid flow valve including a housing including a fluid inlet port, and a fluid outlet port including an outlet aperture and a valve seating bounding the outlet aperture; a sealing-member configured to be biased, under fluid pressure within the housing, against the valve seating so as to seal the outlet aperture; a sealing-member displacing mechanism secured to the sealing-member so that displacement of the displacing mechanism in a first sense detaches the sealing-member from the valve seating so as to open the outlet aperture, while displacement of the displacing mechanism in an opposite sense allows for the sealing-member to become sealingly biased against the valve seating; and a sealing-member opening mechanism configured for displacing the sealing-member against the biasing effect of the displacing mechanism so as to discharge the fluid flow valve.
摘要:
Valve 1700 to dispense fluid, comprising: a nozzle 1705 including a first mating plate and one or more apertures 1751, the nozzle sealed to a valve case 2310 via a first seal 2316; a housing body 1701 coupled to the valve case, wherein the valve case is sealed to the housing body via a second seal 2315; an actuator assembly 1710 coupled to the housing body and including a solenoid 1706, a solenoid spring 2117, and a solenoid plunger 2207; a valve block 1709 coupled to the housing body and including an opening 2350 to accommodate a fitting 1721 to receive fluid from a fluid source, wherein the valve block is sealed to the housing body via a third seal 2304; and a plunger 2326 coupled to a plunger shaft 2322, wherein movement of the plunger shaft transitions the valve between an open position and a closed position, and wherein movement of the plunger shaft is indirectly related to movement of the solenoid plunger.