Abstract: A connector is provided for mounting on an anesthetic vaporizer to connect the inlet of the vaporizer with a discharge port of a container of liquid anesthetic. The connector includes a first coupling attachable to the vaporizer and defining a first passage communicating at one end with the vaporizer inlet. A second coupling is attachable to the container and defines a second passage communicating at one end with the container discharge port. A third passage defined by one of the couplings and communicates with one of the first and second passages. A combination valve and mounting structure is cooperatively defined by the couplings to accommodate pivoting of the second coupling to a closed position occluding the first and second passages, to a raised fill position establishing communication between the first and second passages, and to a lowered drain position in which the first and second passages communicate through the third passage.
Abstract: A solenoid valve is disclosed including a valve housing having a central bore and a valve seat, a valve element movable between an open position allowing fluid to pass through said valve seat and a closed position in sealing engagement with said valve seat, a valve operator for moving the valve element between the open and closed positions including a reciprocating armature plunger member extending through the bore and an armature secured to the armature plunger, a valve adjustment for adjustably mounting the valve element relative to the valve operator for permitting adjustment to within an acceptable tolerance of a predetermined distance between the valve element and the valve seat when the valve element is in its open position without creating a path of leakage when the valve element is in its closed position.
January 14, 1994
Date of Patent:
May 23, 1995
Cummins Engine Company, Inc.
Rodney M. Shurman, Harry L. Wilson, David M. Rix, John D. Crofts, Brett I. Barnhart, Alan B. Slachter
Abstract: A rotary valve noise attenuator with a rotary ball control element and a noise attenuator member mounted in the ball having multiple, elongated, substantially enclosed channels formed across the valve opening to split the flow stream into several smaller flow streams. The channel walls are perforated so each smaller flow stream is further dispersed and diffused into many minute flow streams after entering the channel. A noise attenuator constructed of several corrugated sections fixed crest to crest to form several diamond shaped channels across the valve opening each having four side walls with holes.
May 26, 1994
Date of Patent:
March 28, 1995
Fisher Controls International, Inc.
Douglas P. Gethmann, Allen C. Fagerlund, Charles R. Kuhlman, Ronnie L. Smith, Alan D. Thomas, Larry J. Weber
Abstract: An electronic fuel admission system for use in an industrial engine or the like, having high speed electrically operated flow control valve assemblies for controlling fuel flow to the engine's cylinders via an air intake system is disclosed. The valve assembly comprises two opposed face-to-face disks; one disk being fixed, the other being translatable with respect to the fixed disk. Both disks include ports distributed around their surfaces such that flow is prevented when the disks abut yet a slight separation results in a relatively high flow rate. The translatable disk is connected to an armature which is associated with a high permeability magnetic core having a coil for generating magnetic flux within the core. The system includes a two phase driver for energizing the coil which first provides a high current of short duration to rapidly generate flux in the core and rapidly attract the armature thereby separating the translatable disk from the fixed disk and opening the valve.
Abstract: A damper including a motor, a reduction gear train rotatably coupled with the motor, reducing rotation of the motor and transmitting the reduced rotation of the motor to a baffle, a rack meshing with a last-stage gear of the reduction gear train and engaged with the baffle at an eccentric position relative to a pivot of the baffle, and the baffle receiving reciprocation of the rack at the eccentric position relative to the pivot of the baffle and pivoting about the pivot of said baffle so as to open and close.
Abstract: A fluid control valve for an inline fluid control system comprising a housing having a fluid inlet and a fluid outlet, the housing having a rectangular shaped fluid passage for fluid to flow therethrough, the housing having a first cylindrical passage located therein and a second cylindrical passage located therein with the first cylindrical passage and the second cylindrical passage located in coaxial alignment with each other, the first cylindrical passage having a first diameter and second cylindrical passage having a second diameter with the first diameter larger than the second diameter and a stepped plunger slidably located in the first cylindrical passage and the second cylindrical passage, the plunger slidable with respect to the rectangular shaped fluid passage to permit one to increase or decrease the area for fluid to flow through the fluid passage, the stepped plunger having an enlarged portion to prevent the stepped plunger from being accidentally withdrawn from the housing and a flow control kno
Abstract: An expansion valve (10) for heat transfer systems such as an air conditioning system, includes a control element (20) for controlling the flow rate of working fluid through the valve. The control element has a stem member (28) and movable member (42) movable on the stem member. Openings (38) to an internal passage (30) in the stem member are regulated by positioning the movable member to achieve regulated flow rate of refrigerant material through the valve. The movable member of the control element is moved by a plunger (24) of a proportional solenoid (22). The proportional solenoid has a magnetic flux circuit including a low permeance isolation tube (62) surrounding the plunger, which enables removal of the coil (76) and frame (78) of the solenoid from the valve. The solenoid further includes a variable permeance flux washer (69) the flux through which varies with plunger position, which is disposed from a gap (82) which provides an area of magnetic saturation.
December 3, 1993
Date of Patent:
February 21, 1995
Parker Hannifin Corporation
Chester D. Campbell, Sandra L. Harper, Virender Jain, Richard L. Kenyon, Alan Matthies, Roger G. Riefler, Roy M. Yabuki, Ashok Zopey
Abstract: A bleed valve apparatus for the fresh water system of a camping vehicle. The apparatus is interposed between a garden hose and the female hose coupling of the plumbing system of the camping vehicle. The apparatus includes a housing which contains three ends, one of which has a mating coupling for the camping vehicle plumbing system. A second end may be coupled to the garden hose. The third end is isolated from the other ends by a water valve which may be opened to allow the apparatus to serve as an outdoor faucet at the camping vehicle or to serve to allow water to drain from the camping vehicle plumbing when the user of the camping vehicle desires to disconnect from the external water system provided through the hose. The configuration of the apparatus allows a garden hose to be routed from the camping vehicle to a water hydrant with few required bends along the hose.
Abstract: In order to discipate energy from a high pressure fluid without causing damage and environmental nuisanse an energy loss device is used. This device includes energy loss paths including void areas arranged to draw energy from the high pressure fluid as it passes through the path. These paths may also include turns and other features to enhance energy loss.
Abstract: A method of continuously modulating a fluid flow rate by means of an electrically controlled sequential valve, consisting in reciprocating the electrically controlled valve provided in a passageway conveying the fluid towards an apparatus to be fed therewith, between a position opening and a position closing said passageway, the frequency of the displacements towards either one of the valve positions being constant whereas the period of holding of the valve in the other position varies in accordance with the flow rate to be obtained, the method being applicable to the adjustement of the flow rate of a fluid such as a gas for a cooking apparatus for instance.
Abstract: A valve with pressure compensation via two valve bodies (9, 10), which are arranged on a connecting rod (11 ) in the same direction, and which come to lie on the corresponding valve seats (7, 8) in the closed position in the same direction via deforming zones. The tightness between the valve bodies and the corresponding valve seats is increased, and the closing force required for sealing is reduced by deforming zones located between the upper valve body (9) and the upper valve seat (7), as well as between the lower valve body (10) and the lower valve seat (8) which are designed as pressure pieces (14, 16) yielding differently to the closing force.
Abstract: A pressure surface forming a boundary of a plenum has an orifice therein through which the flow is channeled. An elastomeric body having a surface with curvature different than that of the pressure surface is squeezed to varying degrees against the pressure surface causing the elastomeric body to contact the pressure surface over an area which increases with increasing squeeze. The orifice is positioned and sized to be wholly within the maximum contact area of the elastomeric body with the pressure surface and to extend outside of the minimum area. At intermediate degrees of squeezing the elastomeric body exposes a finely controlled opening for flow through the orifice.
Abstract: The valve comprises a shutter for the drain conduit of the control chamber of the injector; and an electromagnet having a fixed core, and an armature controlling the shutter and which is normally pushed by a return spring for maintaining the drain conduit closed by the shutter.The device for adjusting the travel of the armature comprises a plate which is fitted to the body of the injector by means of a sleeve and via the interposition of two sets of calibrated washers. The plate presents a stop element against which is arrested a contact element integral with the armature, for preventing the armature from contacting the core.
December 28, 1993
Date of Patent:
January 17, 1995
Elasis Sistema Ricerca Fiat Nel Mezzogiorno
Abstract: A shut-off valve includes a housing defining a flow channel and a bore for receiving a rotary actuator, a valve member, and first and second seal rings. The first seal ring cooperates with the valve member to close and seal the flow channel. The second seal ring cooperates with the valve member to seal the actuator bore. The seal rings are composed of radially extending metal lamellae interposed between soft material lamellae. The soft material lamellae are composed of lubricating material having a non-homogeneous structure which have the capacity to form radial freely extending sliding layers. The metal lamellae have, at least in the region around the inside surface of the seal rings, axial deformations. Such axial deformations provide positive mechanical connection to the adjoining soft material lamellae, restricting the soft material sliding layers to at most one third of the lamellae thickness.
Abstract: The invention is to a safety valve for gas cylinders which includes a valve housing 11, a movable valve stem 11a within the valve housing for opening and closing the valve, a restrictor 15 in the valve stem through which gas is dispensed from the gas cylinder, a first shoulder 13 on the valve stem for sealing the gas cylinder when the valve is in a first position, a second shoulder 14 on the valve stem for limiting gas flow from the cylinder through the restrictor when the valve is in a second position, and a reduced section 11d of the valve stem, between said first and second shoulders, through which the gas cylinder is filled when the valve stem is in a position between said first and second positions.
Abstract: A control valve comprises a valve body having a fluid channel and a valve seat; a valve operating part; a valve stem supporting member having its upper end fixed to the valve operating part and its lower end fixed to the valve body; a valve stem penetrating the valve stem supporting member and having its upper end part connected to the valve operating part and its lower end part entering the valve body, the valve stem being movable upward or downward by the valve operating part; and a valve element attached to the lower end of the valve stem. The valve element is moved upward or downward by moving the valve stem upward or downward, the valve element being brought into contact with and seated in the valve seat to close a fluid channel as it is moved downward, the valve element being detached from the valve seat to open the fluid channel as it is moved upward.
Abstract: A multiport fluid flow control valve, particularly for use in a regenerative incinerator system for treating process emissions to remove volatile organic combustibles (VOCs). A valve housing has at least three main conduit connection openings. A butterfly valve element rotatable within the housing on a valve element axis has at least two radially-extending rectangular wings such that different pairs of the main conduit connection openings are in deliberate fluid communication depending on the position of the valve element. To accommodate thermal expansion, there is a gap between the peripheries of the valve element wings and an inner surface of the valve housing. Leakage across this gap is prevented by a valve element structure which cooperates with a portion of the valve housing inner surface to define a plenum. The plenum is either pressurized or forcibly vented. In one form, the structure which cooperates to define a plenum comprises a U-shaped channel element on the peripheries of the wings.
Abstract: A magnetic-latching of either of the selected operating positions of a two-position valve utilizes a generally toroidal magnetic circuit that is established by spaced inner and outer annular walls which are connected at their axial ends, with an inlet-port fluid-flow connection at one end to the interior of the inner wall, and with an outlet-port fluid-flow connection from the interior of the inner wall. The inner wall has a gap between axially spaced first and second annular pole faces. A single electrical excitation coil is coupled to the magnet circuit at overlap with the inner annular wall on one side of the gap. A disc-shaped armature is compliantly supported for axially shuttled displacement in the gap in alternating abutment with one to the exclusion of the other of the pole faces.
Abstract: A valve having a valve body, a valve plug and a deformable valve seat. A generally annular, wedge-shaped space is provided between a portion of the valve seat and a seat support in the valve body. Closing the valve brings the valve plug into single line contact with the deformable seat. Continued closing creates a myriad of line contacts as the seat deforms into the wedge shaped space, occluding any foreign surface particles and bridging surface discontinuities.
Abstract: Solenoid flow control valve having a valve body with a chamber defined therein and first and second flow ports; a seat member located within the chamber and defining a mouth of the first flow port; a plunger longitudinally positionable between a first plunger position in sealing engagement with the seat member and a second plunger position spaced from the seat member; a selectively-operable electromagnetic having a core spool member with the second flow port extending therethrough; two disk springs radially extending from the plunger to the valve body; and a pole piece having a base portion affixed to the valve body and a flux receiving portion positioned between the two disk springs and radially extending toward the plunger, such that selective operation of the electromagnet moves the plunger toward the core spool member to the second plunger position to form a magnetic circuit through the plunger, the pole piece, the valve body and core spool member.