Patents by Inventor Brian Graichen

Brian Graichen 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).

  • Patent number: 10336305
    Abstract: A Venturi device for producing vacuum from fluids in an engine system has a body defining a Venturi gap separating apart an outlet end of a converging motive section and an inlet end of a diverging discharge section by a lineal distance, and a suction port in fluid communication with the Venturi gap. The converging motive section and the diverging discharge section both gradually, continuously taper toward the Venturi gap, the converging motive section defines a circular-shaped motive inlet and an elliptical- or polygonal-shaped motive outlet, the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet, and an inner passageway of the converging motive section transitions as a hyperbolic function from the motive inlet to the elliptical- or polygonal-shaped motive outlet.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: July 2, 2019
    Assignee: Dayco IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • Publication number: 20180043875
    Abstract: A Venturi device for producing vacuum from fluids in an engine system has a body defining a Venturi gap separating apart an outlet end of a converging motive section and an inlet end of a diverging discharge section by a lineal distance, and a suction port in fluid communication with the Venturi gap. The converging motive section and the diverging discharge section both gradually, continuously taper toward the Venturi gap, the converging motive section defines a circular-shaped motive inlet and an elliptical- or polygonal-shaped motive outlet, the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet, and an inner passageway of the converging motive section transitions as a hyperbolic function from the motive inlet to the elliptical- or polygonal-shaped motive outlet.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 15, 2018
    Applicant: DAYCO IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • Patent number: 9827963
    Abstract: Aspirators are disclosed herein that include a body defining a Venturi gap between an outlet end of a converging motive section and an inlet end of a diverging discharge section and have a suction port in fluid communication with the Venturi gap. The converging motive section defines a circular-shaped motive inlet and defines an elliptical- or polygonal-shaped motive outlet, and the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet. In one embodiment, the converging motive section defines an inner passageway that transitions as a hyperbolic function from the circular-shaped motive inlet to the elliptical- or polygonal-shaped motive outlet and the elliptical- or polygonal-shaped motive outlet has an area that is less than the area of the circular-shaped motive inlet.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: November 28, 2017
    Assignee: Dayco IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • Patent number: 9447697
    Abstract: Wastegate assemblies and turbocharger assemblies including the wastegate assemblies are described. The wastegate assemblies include a housing enclosing both an actuator and a valve. The valve is operatively coupled to the actuator and the housing terminates with a crush seal. The housing also includes a mounting member connectable to a turbocharger to place the crush seal in sealing engagement with a wastegate opening in the turbocharger. The turbocharger assemblies include a housing enclosing a turbine and a compressor wheel that are operatively coupled together on a common shaft that defines an axis of rotation, and have a wastegate assembly removably mounted to an outlet end of the housing proximate the turbine and extending therefrom in a direction away from the turbine and the compressor wheel. Here, the wastegate assembly has a longitudinal axis that is parallel to the axis of rotation.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 20, 2016
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: Craig Markyvech, James Miller, David Fletcher, Brian Graichen
  • Patent number: 9441647
    Abstract: Pressure piston actuators and systems for control of wastegate in a turbocharger pressure that include the pressure piston actuators are disclosed. The pressure piston actuator includes a housing defining a chamber and a pathway leading to the chamber, a piston disposed within the chamber, a rod connected to the piston by a ball-and-socket joint, and a spring disposed in the chamber to bias the piston, and hence the rod, into a retracted position. Then, when fluid is introduced into the chamber, the fluid applies pressure to the piston. Once the pressure overcomes the bias of the spring, the piston, and hence the rod, moves into an extended position. For the system, the pressure piston actuator has the connector on the end of the rod opposite the ball-and-socket joint connected to the valve portion of a wastegate of a turbocharger.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: September 13, 2016
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: David Fletcher, Brian Graichen, Stuart Kirby
  • Patent number: 9238388
    Abstract: A tire pressure maintenance apparatus and system is disclosed. The apparatus and system comprises a high pressure reservoir and a pressure regulator secured to the high pressure reservoir. A high pressure relief valve is also provided. The high pressure reservoir is circumferentially continuous. Further, the pressure regulator has a passive valve in fluid communication with the high pressure reservoir and the pressure regulator opens at a low pressure point and closes at a high pressure point.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 19, 2016
    Assignee: DAYCO IP HOLDINGS, LLC
    Inventors: David Fletcher, James Miller, Craig Markyvech, Brian Graichen
  • Patent number: 9068535
    Abstract: A variable flow valve with position feedback is disclosed. The variable flow valve includes a housing having an inlet port and a discharge port and one or more control ports, and also includes a piston connected to a primary valve to open and close fluid communication between an inlet port and a discharge port of the housing. The housing and the piston intermesh to define an inner chamber and an outer chamber each in fluid communication with its own control port. A control port valve opens and closes at least one of the control ports to control access to a source of pressure change. A position sensor is part of the position feedback and communicates the position of the primary valve, relative to the discharge port, to a controller that operates the control port valve to hold the primary valve in a position where the discharge port is partially open.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 30, 2015
    Assignee: Dayco IP Holdings, LLC
    Inventors: Brian Graichen, Dave Fletcher, Craig Markyvech
  • Publication number: 20140360607
    Abstract: Aspirators are disclosed herein that include a body defining a Venturi gap between an outlet end of a converging motive section and an inlet end of a diverging discharge section and have a suction port in fluid communication with the Venturi gap. The converging motive section defines a circular-shaped motive inlet and defines an elliptical- or polygonal-shaped motive outlet, and the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet. In one embodiment, the converging motive section defines an inner passageway that transitions as a hyperbolic function from the circular-shaped motive inlet to the elliptical- or polygonal-shaped motive outlet and the elliptical- or polygonal-shaped motive outlet has an area that is less than the area of the circular-shaped motive inlet.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 11, 2014
    Applicant: Dayco IP Holdings, LLC
    Inventors: Dave Fletcher, Brian Graichen, Keith Hampton, Matt Gilmer, Andrew Niedert
  • Publication number: 20140271234
    Abstract: Turbochargers are disclosed that have a braking system to brake the rotation of an electrically conductive compressor wheel within the turbocharger. The brake system includes the electrically conductive compressor wheel, which is connected to a turbine by a common shaft, one or more electromagnets positioned proximate to the compressor wheel, and a control circuit electrically coupled to the one or more electromagnets to turn the one or more electromagnets on or off to provide braking action to the compressor wheel. Systems including such a turbocharger and methods utilizing such turbochargers are also included herein.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Dayco IP Holdings, LLC
    Inventors: Craig Markyvech, Brian Graichen, Stuart Kirby, Dave Fletcher
  • Publication number: 20140261942
    Abstract: A tire pressure maintenance apparatus and system is disclosed. The apparatus and system comprises a high pressure reservoir and a pressure regulator secured to the high pressure reservoir. A high pressure relief valve is also provided. The high pressure reservoir is circumferentially continuous. Further, the pressure regulator has a passive valve in fluid communication with the high pressure reservoir and the pressure regulator opens at a low pressure point and closes at a high pressure point.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Dayco IP Holdings, LLC
    Inventors: David Fletcher, James Miller, Craig Markyvech, Brian Graichen
  • Publication number: 20140271138
    Abstract: Wastegate assemblies and turbocharger assemblies including the wastegate assemblies are described. The wastegate assemblies include a housing enclosing both an actuator and a valve. The valve is operatively coupled to the actuator and the housing terminates with a crush seal. The housing also includes a mounting member connectable to a turbocharger to place the crush seal in sealing engagement with a wastegate opening in the turbocharger. The turbocharger assemblies include a housing enclosing a turbine and a compressor wheel that are operatively coupled together on a common shaft that defines an axis of rotation, and have a wastegate assembly removably mounted to an outlet end of the housing proximate the turbine and extending therefrom in a direction away from the turbine and the compressor wheel. Here, the wastegate assembly has a longitudinal axis that is parallel to the axis of rotation.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Dayco IP Holdings, LLC
    Inventors: Craig Markyvech, James Miller, David Fletcher, Brian Graichen
  • Publication number: 20140096675
    Abstract: Pressure piston actuators and systems for control of wastegate in a turbocharger pressure that include the pressure piston actuators are disclosed. The pressure piston actuator includes a housing defining a chamber and a pathway leading to the chamber, a piston disposed within the chamber, a rod connected to the piston by a ball-and-socket joint, and a spring disposed in the chamber to bias the piston, and hence the rod, into a retracted position. Then, when fluid is introduced into the chamber, the fluid applies pressure to the piston. Once the pressure overcomes the bias of the spring, the piston, and hence the rod, moves into an extended position. For the system, the pressure piston actuator has the connector on the end of the rod opposite the ball-and-socket joint connected to the valve portion of a wastegate of a turbocharger.
    Type: Application
    Filed: October 3, 2013
    Publication date: April 10, 2014
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: David Fletcher, Brian Graichen, Stuart Kirby
  • Publication number: 20130340428
    Abstract: A variable flow valve with position feedback is disclosed. The variable flow valve includes a housing having an inlet port and a discharge port and one or more control ports, and also includes a piston connected to a primary valve to open and close fluid communication between an inlet port and a discharge port of the housing. The housing and the piston intermesh to define an inner chamber and an outer chamber each in fluid communication with its own control port. A control port valve opens and closes at least one of the control ports to control access to a source of pressure change. A position sensor is part of the position feedback and communicates the position of the primary valve, relative to the discharge port, to a controller that operates the control port valve to hold the primary valve in a position where the discharge port is partially open.
    Type: Application
    Filed: June 19, 2013
    Publication date: December 26, 2013
    Applicant: DAYCO IP HOLDINGS, LLC
    Inventors: Brian Graichen, Dave Fletcher, Craig Markyvech
  • Patent number: 7578529
    Abstract: A collet quick connect fluid coupling includes a self-centering structure that is received within a channel (36) in a pilot (32). The channel and self-centering leg (28) ensures the collet (26) is approximately centered within the housing (22) as a tube (38) is moved into the housing. This prevents misalignment of the collet relative to the tube (38). In a preferred embodiment, the collet (26) has a ramp (30) on an inwardly facing surface that cams along a surface on the pilot (32), assisting the collet (26) in expanding when a tube (38) is moved into a housing (22).
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: August 25, 2009
    Assignee: Cooper Technology Services, LLC
    Inventors: Matthew David Lutzke, Brian Graichen
  • Publication number: 20070164564
    Abstract: A collet quick connect fluid coupling includes a self-centering structure that is received within a channel (36) in a pilot (32). The channel and self-centering leg (28) ensures the collet (26) is approximately centered within the housing (22) as a tube (38) is moved into the housing. This prevents misalignment of the collet relative to the tube (38). In a preferred embodiment, the collet (26) has a ramp ( 30) on an inwardly facing surface that cams along a surface on the pilot (32), assisting the collet (26) in expanding when a tube (38) is moved into a housing (22).
    Type: Application
    Filed: December 9, 2003
    Publication date: July 19, 2007
    Inventors: Matthew Lutzke, Brian Graichen