摘要:
A quiescent zone fluid filter. A reservoir communicates via upstream and downstream communication ports with a fluid flow tube. At the upstream communication port, liquid flowing in the fluid flow tube enters a quiescent zone of the reservoir, whereupon particles therein descend. The liquid then rejoins the fluid flow tube at the downstream communication port free of particles therein. The quiescent zone fluid filter is advantageously implemented within a fluid flow control valve, as for example at the valve barrel of a barrel valve.
摘要:
An air mattress includes a mattress pad, a back support to raise a part of the mattress pad, and an air pump assembly built into the mattress pad to inflate the mattress pad and the back support.
摘要:
An inflatable product that includes an inflatable body, a switching pipe and a fan and motor. The switching pipe is switched between a first position and a second position. The fan and motor inflates the inflatable body when the switching pipe is switched to the first position. The fan and motor deflates the inflatable body via the switching pipe when the switching pipe is switched to the second position.
摘要:
The present invention is a ball valve which may be attached to a fluid pipe for connection/disconnection between an entrance and an exit. More particularly, the present invention is a ball valve having a discharge orifice communicating with ambient air in addition to the entrance and the exit for connection/disconnection between the entrance and the discharge orifice and/or between the exit and the discharge orifice. The ball valve of the present invention may be attached to piping systems such as, for example, the secondary side of a steam trap, which blocks steam but automatically discharges condensed water, and is used for checking a discharging state of the primary side steam trap and/or releasing remaining pressure on the secondary side.
摘要:
An inflatable product that includes a chamber and an electric air pump for inflating the chamber. The air pump has an air intake and an air outlet. The air intake is connected to the outside of the chamber and the air outlet is connected to the inside of the chamber when the air pump is moved to a first position. The air intake is connected to the inside of the chamber and the air outlet is connected to the outside of the chamber when the air pump is moved to a second position.
摘要:
An electromagnetic ventilation valve includes a fixed member defining at least a first aperture therethrough. A movable member having at least one magnetically reactive element positioned thereon is juxtaposed next to the fixed member. The movable member further defines at least a second aperture therethrough and is translatable between at least an opened and a closed position. The opened position corresponds to the first and second apertures substantially in full registration one with the other and defining an air passage therethrough. The closed position corresponds to the first and second apertures in non-registration to close the air passage. At least one electromagnet is located proximate to the magnetically reactive element such that activation of the electromagnet causes the movable member to translate between the opened and closed positions.
摘要:
A rotary valve 10 which includes a first sleeve member 24 and a second shaft member 32. The members 24 and 32 cooperatively provide pressure to a cylinder assembly 36, effective to cause the cylinder assembly 36 to move the wheels 20, 22 in a desired direction. The valve 10 provides increased pressure to the low-pressure side of the piston as the amount of torque which is communicated to it is increased or as the velocity of the rack assembly 18 is increased from wheels 20, 22.
摘要:
An inflatable product that includes a chamber and an electric air pump for inflating the chamber. The air pump has an air intake and an air outlet. The air intake is connected to the outside of the chamber and the air outlet is connected to the inside of the chamber when the air pump is moved to a first position. The air intake is connected to the inside of the chamber and the air outlet is connected to the outside of the chamber when the air pump is moved to a second position.
摘要:
An actuation fluid control valve for a hydraulically actuated fuel injector comprises an injector body having an actuation fluid control passage, a low pressure actuation fluid drain passage, and a high pressure actuation fluid supply passage for accepting high pressure actuation fluid into the fuel injector. An actuator is attached to the injector body. A rotatable valve member includes a first valve passage and a second valve passage and is disposed in the injector body such that high pressure actuation fluid entering from the high pressure actuation fluid supply passage will not bias the rotatable valve member either toward the first position or toward the second position. The rotatable valve member is rotatable in response to the actuator between a first position in which the high pressure actuation fluid supply passage is in fluid communication with the actuation fluid control passage via the first valve passage, and a second position in which the high pressure actuation fluid supply passage is not in fluid communication with the actuation fluid control passage.
摘要:
The present invention relates to a ball valve with a shear stem which can be utilized in combination with a conventional ball valve or vented ball valve. The ball valve with a shear stem is utilized with a conventional ball valve or a vented valve assembly including a valve body having a vent hole therein. The ball valve defines a body having first and second flow-through ends with a valve member receiving chamber thereinbetween, and a collar defining a stem receiving passage communicating with the chamber. A valve member such as a ball or cylindrical plug is disposed within the chamber. The valve member has a throughbore therein in operable alignment with the first end second flow-through ends. The vented ball valve embodiment has at least one valve member vent hole through the wall of the valve member in flow communication with the throughbore. A shear stem extends through and is rotatably mounted within the stem receiving passage and engageable with the valve member for rotating the valve member in and out of flow-through alignment. The vented valve embodiment includes a venting means in cooperation with the shear stem providing selected flow communication with the atmosphere through the valve body vent hole, between the shear stem and stem receiving passage, through the chamber, and through said valve body vent hole to the flow-through ends. The shear stem includes a first lower continuous primary groove circumventing the stem for cooperative engagement with a primary O-ring providing a seal between the stem and the collar and a second higher continuous secondary groove circumventing the stem for cooperative engagement with a secondary O-ring. The continuous secondary groove is deeper, thicker, or shaped in a particular configuration in order to shear before the continuous primary groove in order to provide a safety means for preventing gas or liquid leakage due to shearing of the stem. In the vented ball valve embodiment the O-ring groove having an axial offset portion also serves to function as the primary groove to be used in combination with a circumferential secondary groove having a secondary O-ring. The conventional ball valve embodiment utilizes a pair of spaced apart circumferential grooves providing for a primary and secondary groove and O-ring arrangement.