Abstract: A pressure control device, preferably for use in a control system of an automatic transmission of a motor vehicle, is shown as having a solenoid motor assembly the armature of which, through a cooperating servo orifice, is effective for varying the magnitude of pressure of a fluid medium acting upon a spool slave-like valving member. The spool valving member has at least two cylindrical axially spaced valving portions with one of such valving portions having a diametrical dimension substantially greater than that of the other of the at least two cylindrical axially spaced valving portions.

Abstract: A simple and effective means for improving mechanical resistance to stress at the coupling between a conductor and the connector is provided in a thermocouple connector which includes an integrally attached spool for storing in neat, compact and readily accessible form, the excess length of electrical conductor which is attached to the connector while providing the resistance to the stress.

Abstract: An assembly for accurately and easily positioning and aligning a sensor device relative to a fluid flow stream in a pipe, incorporates a threaded housing which is engageable with a standard pipe tee-fitting to provide a platform for linearly positioning the sensor relative to the axis of flow. A sensor unit subassembly is rotatably supported on the platform so that it may be rotated into proper radial alignment with the flow axis while it is supported on the platform at the proper linear position relative to the flow axis. A paddlewheel flowmeter having a single leg supporting the paddlewheel axle in cantilever fashion forms the sensing unit which exploits the improved alignment accuracy of this assembly to avoid build-up of sludge and debris which might affect free rotation of the paddlewheel. Separate and independent lock-nuts fix the housing in position relative to the tee-fitting, and fix the sensor sub-assembly in position relative to the housing.

Abstract: Collapsible box-like cartons of the type constructed to fold flat for storage and to be unfolded to form a rigid carton for shipping purposes are provided with secondary hinge and removable sections which thereby enable such cartons to be transformed from their first substantially rectangular geometric shape in which they are used as shipping cartons to a second useable shape so that they can be recycled for other purposes.

Abstract: A regenerative toric pump in which undesirable noise generation and leakage through the clearance gaps between the impeller and housing is minimized includes an impeller having vanes lying in general planes radiating from the impeller axis disposed at variable spacings from each other in a geometrically balanced pattern. Recesses in one of opposed side surfaces on the impeller and housing are arranged in a pattern such as to minimize leakage through the clearance gap between those surfaces from points in the pump chamber which are at different pressures.

Abstract: A spray nozzle designed to produce a spray or mist containing a high concentration of bubbles. Such a spray is particularly useful in mixing liquid fuel and air for burning within a combustion chamber, as for example in a gas turbine engine. The novel design includes a pair of swirl chambers generally axially aligned within the nozzle. Fuel or other liquid enters the first or forward swirl chamber in a generally tangential and laminar flow pattern, passes into the second or rearward chamber through an interconnecting orifice. Violent liquid and air mixing occurs in the second chamber and the mixture is then expelled as an aerated spray through the interconnecting orifice, the first chamber and a discharge orifice.

Abstract: Various forms of control modules incorporating multiple solenoid actuated valves and passages are disclosed. All disclosed modules include a one piece sheet metal mounting bracket upon which the multiple valves and manifold may be assembled in a frictional snap fit assembly procedure. The one piece sheet metal mounting bracket is formed with a pair of spaced parallel vertical webs, at least one web being formed with a double thickness of the sheet metal material and provided with U-shaped recesses extending into the web from its upper edge. The U- shaped recesses are adapted to snugly receive a portion of each valve housing which is formed with a pair of spaced radially outwardly projecting flanges which frictionally grip the opposed sides of the doubled web to hold the valve assemblies in a seated position. The other web engages the rearward ends of each valve assembly. Several variant assembly techniques are disclosed.

Abstract: A pressure control device, preferably for use in a control system of an automatic transmission of a motor vehicle, is shown as having a solenoid motor assembly the armature of which, through a cooperating servo orifice, is effective for varying the magnitude of pressure of a fluid medium acting upon a spool slave-like valving member which ultimately provides a fluid medium to associated fluid medium receiving structure; a fluid medium flow restriction formed as of sintered metal enables the fluid medium to flow in and through the control device to thereby bring about purging of air and other gases from within said control device.

Abstract: A purge valve for controlling the flow of fuel vapor from a vehicle mounted fuel vapor storage canister to the intake manifold of the vehicle engine utilizes a solenoid actuated three-way valve to control the position of a flexible diaphragm of a flow metering valve to meter flow of fuel vapor at continuously variable rates in response to a solenoid actuating duty cycle signal from an electronic control unit. A diaphragm controlled vacuum regulator connected to the intake manifold maintains a flow chamber in the vacuum regulator at a substantially constant subatmospheric pressure into which the metered flow of fuel vapor is passed from a flow chamber of the metering valve at atmospheric pressure. The metering valve diaphragm shifts to adjust the flow rate in response to variations in the pressure differential between its flow chamber and a control chamber at the opposite side of the diaphragm.

Abstract: A simplex air blast fuel injection system and method for the atomization of fuel for ignition to drive a gas turbine includes a simplex nozzle which receives a fuel from a fuel pump powered by the turbine over a range of pressures between maximum and minimum pressures during the operation of the turbine, and also received fuel from the fuel pump at a substantially lower pressure than the minimum fuel pressure when the turbine is cranked during startup. The fuel is discharged from the nozzle orifice as a swirling stream of atomized fuel during turbine operation, and as a film which is insufficiently atomized to initiate ignition during the turbine startup. An air compressor is also powered by the turbine to supply air at a low pressure and high volume to the fuel issuing from the nozzle orifice during both turbine operation and startup.

Abstract: An electromagnetic valve assembly is shown having an armature and armature-actuated valve member the mass of which is substantially less than the armature and which is not fixedly connected to the armature; upon electrical energization the armature first overcomes a restraining force and then travels a major part of its stroke before actuating the valve member, at a relatively high speed thereby causing movement of the valve member by kinetic energy of the armature.

Abstract: A magnetically operated pressure control valve includes an electromagnetic coil having a central passage extending axially through the coil. A moveable armature is axially disposed in the coil passage to be magnetically attracted to a pole piece when the coil is energized. An armature spring biases the armature in a first position when the coil is not energized. A valve body is stationarily located in the valve housing and has two conduits therein. Movement of the armature controls fluid flow in the two conduits to control fluid flow between a supply port and a control port, and the control port and an exhaust port. Wave washer springs are located at opposite ends of the armature between the armature and the valve housing to resiliently absorb kinetic energy from movement of the armature, to reduce impact stress between the armature and housing, and to prevent a vacuum lock between the armature and housing due to their flat surfaces and the fluid in the valve.

Abstract: A pressure regulating device regulates the pressure of a flowing medium and includes a stationary member. A movable armature is disposed axially from the stationary member for moving axially in relation to the stationary member. A coil is disposed about the stationary member and the armature and through which curernt flows for generating magnetic flux to create an attractive force to move the armature in relation to the stationary member. A housing is disposed about the coil and the stationary member and the armature for encasing the armature and the coil and the stationary member. At least one aperture is formed in the housing to allow a fluid medium to enter and exit the housing and to contact the armature. A means bleeds a portion of the fluid medium based on the current to the coil to control the output pressure to predetermined levels.