Patents by Inventor Rex Bravo
Rex Bravo 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: 10519984Abstract: Venturi devices for producing vacuum are disclosed that include a housing defining a motive port, a suction port, a discharge port, a first flow passage between the motive port and the discharge port, and a second flow passage into and through the suction port and into fluid communication with the first flow passage, a first check valve incorporated into the housing and positioned to control fluid flow through the suction port, and a sound attenuating wrap about the outer surface of the housing. The Venturi devices may also include a sound attenuating member disposed in the first flow passage downstream of the intersection of the second flow passage and the first flow passage, in the portion of the second flow passage leading into the suction port, in the first check valve, or combinations thereof.Type: GrantFiled: June 5, 2015Date of Patent: December 31, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, James H. Miller, Rex Bravo, Andrew D. Niedert, Matthew C. Gilmer, Keith Hampton, Nicole Bruder
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Patent number: 10480537Abstract: An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.Type: GrantFiled: April 3, 2019Date of Patent: November 19, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert, Denis Vashuk
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Publication number: 20190234430Abstract: An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.Type: ApplicationFiled: April 3, 2019Publication date: August 1, 2019Applicant: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert, Denis Vashuk
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Patent number: 10273978Abstract: An evacuator for supplying vacuum to a device in a boosted engine air system is disclosed. The evacuator defines a body comprising a converging motive section, a diverging discharge section, at least one suction port, and a Venturi gap located between an outlet end of the converging motive section and an inlet end of the diverging discharge section. A lineal distance is measured between the outlet end and the inlet end. The lineal distance is decreased in length if higher suction vacuum at a specific set of operating conditions is required and the lineal distances is increased in length if higher suction flow rate at the specific set of operating conditions is required.Type: GrantFiled: August 20, 2015Date of Patent: April 30, 2019Assignee: Dayco IP, Holdings LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert, Denis Vashuk
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Patent number: 10221867Abstract: An aspirator for creating vacuum is disclosed that includes a housing defining a fluid passageway with a first tapering portion and a second tapering portion. Each tapering portion has a larger internal opening and a smaller internal opening, the smaller openings facing one another. The aspirator includes a gate positioned between and in fluid communication with the first and second tapering portions, the gate having a first Venturi tube with a Venturi opening creating vacuum when fluid flows in a direction and a second Venturi tube with a Venturi opening that creates vacuum when fluid flows in the opposite direction. The Venturi openings are in fluid communication with a suction port, and the first and second Venturi tubes may provide different mass flow rates through the aspirator. An engine system having an aspirator with a gate having a first bore and a second bore and an actuator is also disclosed.Type: GrantFiled: December 9, 2014Date of Patent: March 5, 2019Assignee: Dayco IP Holdings, LLCInventors: Keith Hampton, David Fletcher, Brian M. Graichen, Rex Bravo, James H. Miller, Matt Gilmer, Andrew Niedert
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Patent number: 10077746Abstract: Noise attenuation units are disclosed that are connectable in a system as part of a fluid flow path. Such units include a housing defining an internal cavity and having a first port and a second port each connectable to a fluid flow path and in fluid communication with one another through the internal cavity, and a noise attenuating member seated in the internal cavity of the housing within the flow of the fluid communication between the first port and the second port. The noise attenuating member enables the fluid communication between the first port and the second port to flow through the noise attenuating member.Type: GrantFiled: February 24, 2017Date of Patent: September 18, 2018Assignee: Dayco IP Holdings, LLCInventors: Keith Hampton, David Fletcher, Brian M. Graichen, Rex Bravo
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Patent number: 10024339Abstract: Ejector assemblies and engine systems have a pressure regulator in fluid communication with an ejector. The pressure regulator receives boost pressure and selectively allows the boost pressure to pass through a valve opening therein under selected engine conditions and into the ejector as regulated boost pressure. Both the pressure regulator and the ejector each have a conduit defining a passageway that includes a Venturi gap separating the passageway into a converging section and a first diverging section that both narrow toward the Venturi gap. The pressure regulator has a piston operatively connected to a valve mechanism positioned for movement therewith to control the passage of the boost pressure through the valve opening, and the valve mechanism defines a passage therethrough that includes a gradually narrowing portion that is narrower than the valve opening.Type: GrantFiled: May 29, 2015Date of Patent: July 17, 2018Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Matthew C. Gilmer, Keith Hampton, Andrew D. Niedert
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Patent number: 9822785Abstract: Recirculation systems for engine intake air are disclosed having a turbocharger compressor with an inlet and an outlet, a recirculation pathway connecting fluid flow from the outlet of the turbocharger compressor to fluid flow into the inlet of the turbocharger compressor, and a recirculation valve assembly controlling fluid flow through the recirculation pathway. The recirculation valve assembly includes an actuator operating a valve coupled to an aspirator assembly that produces vacuum when the fluid flows through the recirculation pathway from the inlet to the outlet and when fluid flows through the recirculation pathway from the outlet to the inlet. Fluid flows through the recirculation pathway from the outlet to the inlet when the turbocharger generates boost. The vacuum generated by the aspirator assembly is in fluid communication with the actuator to move the valve between two or more positions.Type: GrantFiled: December 10, 2014Date of Patent: November 21, 2017Assignee: Dayco IP Holdings, LLCInventors: David Fletcher, Brian M. Graichen, James H. Miller, Keith Hampton, Matt Gilmer, Rex Bravo, Andrew Niedert
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Patent number: D796005Type: GrantFiled: January 16, 2017Date of Patent: August 29, 2017Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Bruder
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Patent number: D796006Type: GrantFiled: January 16, 2017Date of Patent: August 29, 2017Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Bruder
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Patent number: D796634Type: GrantFiled: January 16, 2017Date of Patent: September 5, 2017Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Bruder
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Patent number: D802095Type: GrantFiled: January 16, 2017Date of Patent: November 7, 2017Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Bruder
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Patent number: D821302Type: GrantFiled: June 19, 2015Date of Patent: June 26, 2018Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Bruder
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Patent number: D821546Type: GrantFiled: October 19, 2017Date of Patent: June 26, 2018Assignee: DAYCO IP HOLDINGS, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Bruder
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Patent number: D840920Type: GrantFiled: May 29, 2018Date of Patent: February 19, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
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Patent number: D840921Type: GrantFiled: May 29, 2018Date of Patent: February 19, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
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Patent number: D840922Type: GrantFiled: May 29, 2018Date of Patent: February 19, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
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Patent number: D840923Type: GrantFiled: May 29, 2018Date of Patent: February 19, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
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Patent number: D843315Type: GrantFiled: May 29, 2018Date of Patent: March 19, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis
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Patent number: D844550Type: GrantFiled: May 29, 2018Date of Patent: April 2, 2019Assignee: Dayco IP Holdings, LLCInventors: David E. Fletcher, Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer, Andrew D. Niedert, Nicole Lavis