Patents by Inventor David L. Seid
David L. Seid has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8517039Abstract: 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.Type: GrantFiled: February 11, 2011Date of Patent: August 27, 2013Assignee: Saturn Electronics & Engineering, Inc.Inventors: David L. Seid, Kevin Manthei, Hamid Najmolhoda
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Patent number: 8387644Abstract: 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.Type: GrantFiled: February 6, 2008Date of Patent: March 5, 2013Assignee: Saturn Electronics & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid
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Patent number: 8172060Abstract: A dynamic pressure control system, such as a transmission pressure control system, is provided wherein one or more of electrical current command signals provided to a pressure control solenoid valve, such as a fast response variable force solenoid pressure control valve, are progressively trimmed in a manner to improve overall system pressure control performance by improving the overall commanded current response. The invention permits use of fast response pressure control solenoid valves and obtainment of in a manner to minimize overshoot and improve steady state accuracy, so as to thereby improve precision pressure control.Type: GrantFiled: April 2, 2008Date of Patent: May 8, 2012Assignee: Saturn Electonics & Engineering, Inc.Inventors: David L. Seid, Hamid Najmolhoda
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Publication number: 20110133107Abstract: 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.Type: ApplicationFiled: February 11, 2011Publication date: June 9, 2011Inventors: David L. Seid, Kevin Manthei, Hamid Najmolhoda
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Patent number: 7909721Abstract: 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.Type: GrantFiled: June 8, 2007Date of Patent: March 22, 2011Assignee: Saturn Electronics & Engineering, Inc.Inventors: David L. Seid, Kevin Manthei, Hamid Najmolhoda
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Patent number: 7801693Abstract: 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.Type: GrantFiled: March 23, 2007Date of Patent: September 21, 2010Assignee: Saturn Electronics & Engineering, Inc.Inventors: David L. Seid, Timothy M. Anderson
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Publication number: 20090254255Abstract: A dynamic pressure control system, such as a transmission pressure control system, is provided wherein one or more of electrical current command signals provided to a pressure control solenoid valve, such as a fast response variable force solenoid pressure control valve, are progressively trimmed in a manner to improve overall system pressure control performance by improving the overall commanded current response. The invention permits use of fast response pressure control solenoid valves and obtainment of in a manner to minimize overshoot and improve steady state accuracy, so as to thereby improve precision pressure control.Type: ApplicationFiled: April 2, 2008Publication date: October 8, 2009Inventors: David L. Seid, Hamid Najmolhoda
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Publication number: 20080258090Abstract: 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.Type: ApplicationFiled: February 6, 2008Publication date: October 23, 2008Inventors: Hamid Najmolhoda, David L. Seid
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Publication number: 20080132381Abstract: 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.Type: ApplicationFiled: June 8, 2007Publication date: June 5, 2008Inventors: David L. Seid, Kevin Manthei, Hamid Najmolhoda
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Patent number: 6581634Abstract: 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).Type: GrantFiled: October 22, 2001Date of Patent: June 24, 2003Assignee: Saturn Electronics & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid
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Publication number: 20020162594Abstract: 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).Type: ApplicationFiled: October 22, 2001Publication date: November 7, 2002Inventors: Hamid Najmolhoda, David L. Seid
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Patent number: 6435472Abstract: 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.Type: GrantFiled: April 25, 2001Date of Patent: August 20, 2002Assignee: Saturn Electronics & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid, David A. Nezwek, John A. Cruden, Jr.
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Publication number: 20020020442Abstract: 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.Type: ApplicationFiled: April 25, 2001Publication date: February 21, 2002Applicant: Saturn Electronics & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid, David A. Nezwek, John A. Cruden
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Patent number: 6321767Abstract: An engine oil solenoid actuated control valve includes a molded one-piece member that defines a check valve-receiving region and a coil bobbin region of the solenoid. The check valve-receiving region includes an integral check valve-receiving receptacle associated with an exhaust port of the control valve. A check valve is received in the receptacle. A solenoid armature is received in the coil bobbin region on which a solenoid coil is wound. The molded one-piece member receives a fluid port-forming sleeve member that provides a supply port and control port. A spool valve is received in the port-forming sleeve member and includes a spool valve end connected to the armature of the solenoid. The spool valve includes first and second lands that are moved relative to the respective fluid supply port and control port to control fluid flow at the control port.Type: GrantFiled: January 10, 2000Date of Patent: November 27, 2001Assignee: Saturn Electronics & Engineering, Inc.Inventors: David L. Seid, Hamid Najmolhoda
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Patent number: 6223761Abstract: Proportional variable force solenoid valve for controlling 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.Type: GrantFiled: November 1, 1999Date of Patent: May 1, 2001Assignee: Saturn Electronics & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid, David A. Nezwek, John A. Cruden, Jr.
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Patent number: 6209563Abstract: An engine oil solenoid control valve includes a molded one-piece valve nozzle and coil bobbin member that defines a valve nozzle and a solenoid coil bobbin and also defines an integral check valve receiving receptacle at an exhaust port and first and second valve seats for controlling valve stroke. A ball valve is disposed between the valve seats. A simple cylindrical armature rod can be used together with molded integral recesses that balance hydraulic pressure on the armature to prevent a hydraulic lock condition.Type: GrantFiled: January 7, 2000Date of Patent: April 3, 2001Assignee: Saturn Electronics & Engineering, Inc.Inventors: David L. Seid, Hamid Najmolhoda
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Patent number: 6179268Abstract: A proportional variable force solenoid fluid control valve for controlling the pressure of a pressurized fluid in a fluid control system in proportion to the current level of an electrical input signal includes an armature in engagement with a fluid pressure control valve and movable in response to electrical current applied to a solenoid disposed on a coil bobbin in a solenoid housing and a coil spring for biasing the armature in a direction to establish a valve fluid pressure response to current level supplied to the solenoid. A plurality of axially magnetized permanent magnet segments each having an inner arcuate magnet surface facing the armature are provided to collectively provide a permanent magnetic field that cooperates with the electromagnetic field of the energized coil to move the armature.Type: GrantFiled: April 21, 1998Date of Patent: January 30, 2001Assignee: Saturn Electronics & Engineering, Inc.Inventor: David L. Seid
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Patent number: 6164322Abstract: A pressure relief latching solenoid valve includes one or more axially magnetized permanent magnets disposed proximate a pole piece with the axial magnetization direction of the magnet aligned in a manner to maintain the armature in either the first or second position after the electrical current pulse to the solenoid is terminated so as to provide bistable first and second armature positions that can be maintained without solenoid energization and that can be changed from one position to the other by an electrical current pulse to the solenoid. The armature can control movement of a ball valve of a fluid circuit such that the first and second armature positions correspond to closed and open positions of the ball valve. The closed position provides a maximum fluid pressure in the circuit and the open position provides a preset lower fluid pressure. A spring resides in a passage in the armature and has a preselected spring rate and spring preload.Type: GrantFiled: July 7, 1999Date of Patent: December 26, 2000Assignee: Saturn Electronic & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid, Ralph E. Verburg
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Patent number: 6019120Abstract: A solenoid actuated valve for regulating the pressure of a pressurized fluid in a fluid control system in proportion to the current level of an electrical input signal including a nozzle housing having an end connected to a solenoid housing and a fixed fluid flow directing tubular sleeve internal thereof and communicated to a supply port for receiving pressurized fluid therefrom. The sleeve includes a primary orifice communicating to a valve seat proximate the end of the nozzle housing and to a control port located proximate a second end of the nozzle housing via one or more longitudinal fluid passages between the nozzle housing and the sleeve. The sleeve includes a secondary bleed orifice located proximate the control port to bleed pressurized fluid thereto in a manner to provide more precise low pressure fluid control.Type: GrantFiled: September 22, 1998Date of Patent: February 1, 2000Assignee: Saturn Electronics & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid, David A. Nezwek
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Patent number: 5984259Abstract: 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.Type: GrantFiled: November 26, 1997Date of Patent: November 16, 1999Assignee: Saturn Electronics & Engineering, Inc.Inventors: Hamid Najmolhoda, David L. Seid, David A. Nezwek, John A. Cruden, Jr.