Abstract: Solenoid operated fluid control valve for controlling the pressure of a fluid in a fluid control system comprises a solenoid housing having therein a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, a valve member for controlling fluid flow to a fluid passage, an actuator pin disposed between the armature and the valve member for moving the valve member in response to armature movement, and one or more features including an armature damping member, tubular actuator pin support body, flow diverter, coil bobbin support sleeve, and/or internal particle gettering magnet to improve valve operation.

Abstract: Assembly of multiple individual fluid pressure control solenoid valves and an individual fluid temperature sensor so packaged relative to a respective one of the individual solenoid valves as to permit direct or indirect fluid temperature measurement at individual solenoid valves. The assembly can include a lead-frame support (e.g. a printed circuit board) having multiple individual fluid pressure control solenoid valves and an individual transmission oil temperature sensor disposed on the lead-frame support in an oil passage that communicates to an output flow port of a respective one of the individual solenoid valves to provide transmission oil temperature information to a transmission electronic control unit, wherein the transmission electronic control unit provides command signals to the individual solenoid valves in response to the individual transmission oil temperature input signals associated with an individual solenoid valve to achieve more accurate pressure control.

Abstract: Solenoid operated fluid control valve for a cam phasing mechanism of an internal combustion engine includes first and second control ports, a 2-stage hydraulically pilot-actuated, pressure balanced spool having an integral control feedback passage and a linear force solenoid actuator operably coupled to a pilot valve of a pilot stage. The spool valve includes an exhaust path common to pilot and spool exhaust passages.

Abstract: Solenoid operated fluid control valve for controlling the pressure of a fluid in a fluid control system comprises a solenoid housing having therein a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, a valve member for controlling fluid flow to a fluid passage, an actuator pin disposed between the armature and the valve member for moving the valve member in response to armature movement, and one or more features including an armature damping member, tubular actuator pin support body, flow diverter, coil bobbin support sleeve, and/or internal particle gettering magnet to improve valve operation.

Abstract: Combination of a housing having a fluid passage and one or more solenoid actuated fluid control valves communicated to the fluid passage wherein a permanent magnet is disposed in fluid passage upstream of the fluid control valves to magnetically capture or getter ferrous particles in fluid prior to entry into the fluid control valve.

Abstract: Solenoid operated fluid control valve for controlling the pressure of a fluid in a fluid control system comprises a solenoid housing having therein a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, a valve member for controlling fluid flow to a fluid passage, an actuator pin disposed between the armature and the valve member for moving the valve member in response to armature movement, and one or more features including an armature damping member, tubular actuator pin support body, flow diverter, coil bobbin support sleeve, and/or internal particle gettering magnet to improve valve operation.

Abstract: Assembly of multiple individual fluid pressure control solenoid valves and an individual fluid temperature sensor so packaged relative to a respective one of the individual solenoid valves as to permit direct or indirect fluid temperature measurement at individual solenoid valves. The assembly can include a lead-frame support (e.g. a printed circuit board) having multiple individual fluid pressure control solenoid valves and an individual transmission oil temperature sensor disposed on the lead-frame support in an oil passage that communicates to an output flow port of a respective one of the individual solenoid valves to provide transmission oil temperature information to a transmission electronic control unit, wherein the transmission electronic control unit provides command signals to the individual solenoid valves in response to the individual transmission oil temperature input signals associated with an individual solenoid valve to achieve more accurate pressure control.

Abstract: A method and apparatus for improving accuracy of measurement of fluid pressure at a fluid port, such as at a supply port or control port of a fluid control valve, involves a closed-loop precision pressure measurement method with barometric pressure and temperature compensation.

Abstract: Combination of a housing having a fluid passage and one or more solenoid actuated fluid control valves communicated to the fluid passage wherein a permanent magnet is disposed in fluid passage upstream of the fluid control valves to magnetically capture or getter ferrous particles in fluid prior to entry into the fluid control valve.

Abstract: A fuel pressure pulse damper includes metallic damper body defining a chamber in which a flexible diaphragm is received in a manner to dampen fuel pressure pulses between a fuel pump and fuel injectors of a vehicle fuel system. The damper body includes a barbed fitting to receive fuel form the fuel pump and quick connect fitting for connection to a fuel rail for supplying pressurized fuel to fuel injectors of the vehicle engine.

Abstract: A method for forming a fine-pitch flip chip assembly interconnects fine pitch devices after they have been connected to a carrier substrate. A die having a plurality of conductive sections, such as solder balls, is attached to a conductive layer of the substrate. An interconnect pattern is then formed in the conductive layer to connect the conductive sections and generate electronic functionality to the assembly. By forming the interconnect pattern after the device have been connected to the carrier, the invention provides precise alignment between the devices and the interconnect pattern without actually aligning the two components during the assembly process.

Abstract: An improved anisotropic bonding system and method connects two conductive surfaces together using an anisotropic material having elastic conductive particles dispersed in an insulating, heat-curable carrier. The system monitors bond resistance in real-time during the bonding process and controls the application of pressure to the bond based on a feedback signal corresponding to the bond resistance. When the bond resistance reaches a predetermined value, the applied pressure is reduced to a holding/clamping level to prevent over-compression as the curing schedule completes curing of the insulating carrier. By monitoring and responding to the bond resistance in real time during the bond compression process, the system prevents bond resistance increases caused by over-compression and conductor damage.

Abstract: A method for manufacturing a chip assembly includes the steps of applying a controlled amount of flux to a plurality of solder balls on a die, applying a non-fluxing underfill material to a substrate, and assembling the die and substrate together to form the chip assembly such that the non-fluxing underfill material is trapped in between the die and the substrate. By applying the underfill material to the substrate before the chip is assembled rather than afterward, the inventive method increases chip assembly speed while maintaining control over flux application to prevent the solder balls from collapsing, eliminate the need for a defined solder resist window, and maintain a consistent die-to-substrate clearance at the solder joint.

Abstract: A fill limit vapor valve assembly includes a housing, a float disposed in the housing, and a bypass valve. The bypass valve includes a vertical passage enveloping a weighted metering rod. The includes a substantially cylindrical upper portion, a substantially cylindrical bottom portion, and a seat portion that rests on a shoulder of the float. As the float raises and lowers, the substantially cylindrical upper portion varies the size of a second opening to control the flow rate of fuel vapor from the fuel tank to an emission device.

Abstract: Fuel shut-off device for use in a diesel fuel tank to discontinue fuel flow to a fuel pump comprises a valve seat forming a fuel flow opening for fuel to flow from the fuel tank to the fuel pump, a fuel control valve cooperably disposed relative to the valve seat to control fuel flow from the fuel tank to the fuel pump, and a spring biasing the fuel inlet valve to a closed position against the valve seat. A diaphragm is provided having a first valve-actuating side for moving the fuel inlet valve relative to the valve seat against bias of the spring and a second side. The second side is communicated to a control chamber having an inlet orifice that is communicated to the fuel tank and an outlet orifice that is communicated to said fuel pump.

Abstract: A fill limit vapor valve assembly includes a housing, a float disposed in the housing, and a bypass valve. The bypass valve includes a vertical passage enveloping a weighted metering rod. The includes a substantially cylindrical upper portion, a substantially cylindrical bottom portion, and a seat portion that rests on a shoulder of the float. As the float raises and lowers, the substantially cylindrical upper portion varies the size of a second opening to control the flow rate of fuel vapor from the fuel tank to an emission device.

Abstract: Engine oil solenoid control valve having a solenoid coil, a solenoid armature movable by energization of a solenoid coil, a check valve communicated to a fluid exhaust port of the control valve, a fluid control valve movable relative to a fluid control port in response to armature movement, and a permanent magnet disposed relative to one or more fluid supply ports of the control valve to magnetically attract and hold or getter ferrous particles in hydraulic fluid supplied to the supply port(s).

Abstract: A method for forming a fine-pitch flip chip assembly interconnects fine pitch devices after they have been connected to a carrier substrate. A die having a plurality of conductive sections, such as solder balls, is attached to a conductive layer of the substrate. An interconnect pattern is then formed in the conductive layer to connect the conductive sections and generate electronic functionality to the assembly. By forming the interconnect pattern after the device have been connected to the carrier, the invention provides precise alignment between the devices and the interconnect pattern without actually aligning the two components during the assembly process.

Abstract: Solenoid operated fluid control valve is connected to a housing of fluid circuit by a twist-on, fluid tight connection between the housing and a solenoid assembly of the fluid control valve. The solenoid assembly has an armature movable in response to electrical current to a wire coil wound on a bobbin in a solenoid housing for controlling position of a movable valve located in a valve body thereof. The control valve includes a valve-receiving nozzle or body with compressible annular fluid seal on a region thereof that is received within the fluid circuit housing. The solenoid bobbin includes a plurality of connection tabs spaced peripherally apart and adapted to be initially received in entrances to an arcuate groove on the fluid circuit housing.

Abstract: Proportional variable force solenoid valve for controlling the pressure of a fluid in a fluid control system comprises a solenoid housing having therein a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, and a biasing spring for biasing the armature in a direction to establish a valve fluid pressure response to solenoid coil current. An inner armature end cooperates with or engages a damping member residing in a fluid damping chamber to reduce non-linear valve responses resulting from pressure oscillations in the fluid control system.