Patents by Inventor Donald E. Willey
Donald E. Willey 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: 11578645Abstract: A valve system comprising a valve chamber at a junction of an inlet port, an outlet port and a bypass port, the inlet port configured for fluid communication with exhaust gas, the outlet port configured for fluid communication with an inlet of a turbine, and the bypass port configured for fluid communication with an exhaust aftertreatment device; a rotary valve comprising a valve rotor which rotates about a valve axis within the valve chamber between a first position to permit gas flow through the bypass port and a second position to block gas flow. At least one of the valve rotor and the valve chamber comprises a protrusion and the other comprises a recess, wherein, in the first position, the protrusion and recess are spaced from one another, and, in the second position the recess receives the protrusion such that gas flow between the protrusion and recess is substantially prevented.Type: GrantFiled: March 1, 2022Date of Patent: February 14, 2023Assignee: CUMMINS LTD.Inventors: Robin Daniels, Thomas Morton, Thomas Roberts, Christopher Parry, Richard Goodyear, Mark R. Holden, Donald E. Willey
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Patent number: 11549600Abstract: A rotary turbine bypass valve comprises a valve chamber and a valve rotor. The chamber is positioned at a junction of an inlet port, an outlet port and a bypass port. The inlet port is configured to receive exhaust gas, the outlet port is configured to fluidly communicate with a turbine inlet, and the bypass port is configured to fluidly communicate with an exhaust aftertreatment device. The rotor comprises a first and second recess, the first recess defining a primary flow passage, the second recess defining a secondary flow passage. The rotor is rotatable between a first position in which the rotor substantially blocks exhaust gas flow through the bypass port and a second position in which the rotor permits such. The secondary flow passage is configured to selectively permit fluid communication between the inlet port and the bypass port when the primary flow passage is partially blocked.Type: GrantFiled: November 11, 2019Date of Patent: January 10, 2023Assignee: CUMMINS LTD.Inventors: Donald E. Willey, Matthew Brookes
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Publication number: 20220186842Abstract: There is provided a seal assembly comprising: a first component and a second component spaced apart from the first component so as to define a passage for the transfer of fluid from an inlet of the seal assembly to an outlet of the seal assembly, wherein the first component comprises a concavity at least partially defining the passage, and wherein no part of the second component extends into the portion of the passage bounded by the concavity.Type: ApplicationFiled: February 21, 2020Publication date: June 16, 2022Inventors: Robin Daniels, James Alexander McEwen, Levinia Mathews, Christopher Parry, Thomas Roberts, George E. Sandford, Stephen Caddy, Thomas Hulson, Dave Lee, Martin Selway, Kevin Franks, Lisa Jane Hill, Henry David Lambton Carr, Jonathan Wilson, Lee Curtis, Fahim Ismail Patel, Matthew Whittlesea, Matthew J. Purdey, Donald E. Willey
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Publication number: 20220186661Abstract: A valve system comprising a valve chamber at a junction of an inlet port, an outlet port and a bypass port, the inlet port configured for fluid communication with exhaust gas, the outlet port configured for fluid communication with an inlet of a turbine, and the bypass port configured for fluid communication with an exhaust aftertreatment device; a rotary valve comprising a valve rotor which rotates about a valve axis within the valve chamber between a first position to permit gas flow through the bypass port and a second position to block gas flow. At least one of the valve rotor and the valve chamber comprises a protrusion and the other comprises a recess, wherein, in the first position, the protrusion and recess are spaced from one another, and, in the second position the recess receives the protrusion such that gas flow between the protrusion and recess is substantially prevented.Type: ApplicationFiled: March 1, 2022Publication date: June 16, 2022Inventors: Robin Daniels, Thomas Morton, Thomas Roberts, Christopher Parry, Richard Goodyear, Mark R. Holden, Donald E. Willey
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Publication number: 20220010883Abstract: A rotary turbine bypass valve comprises a valve chamber and a valve rotor. The chamber is positioned at a junction of an inlet port, an outlet port and a bypass port. The inlet port is configured to receive exhaust gas, the outlet port is configured to fluidly communicate with a turbine inlet, and the bypass port is configured to fluidly communicate with an exhaust aftertreatment device. The rotor comprises a first and second recess, the first recess defining a primary flow passage, the second recess defining a secondary flow passage. The rotor is rotatable between a first position in which the rotor substantially blocks exhaust gas flow through the bypass port and a second position in which the rotor permits such. The secondary flow passage is configured to selectively permit fluid communication between the inlet port and the bypass port when the primary flow passage is partially blocked.Type: ApplicationFiled: November 11, 2019Publication date: January 13, 2022Inventors: Donald E. Willey, Matthew Brookes
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Publication number: 20200173347Abstract: A valve system comprising a valve chamber at a junction of an inlet port, an outlet port and a bypass port, the inlet port configured for fluid communication with exhaust gas, the outlet port configured for fluid communication with an inlet of a turbine, and the bypass port configured for fluid communication with an exhaust aftertreatment device; a rotary valve comprising a valve rotor which rotates about a valve axis within the valve chamber between a first position to permit gas flow through the bypass port and a second position to block gas flow. At least one of the valve rotor and the valve chamber comprises a protrusion and the other comprises a recess, wherein, in the first position, the protrusion and recess are spaced from one another, and, in the second position the recess receives the protrusion such that gas flow between the protrusion and recess is substantially prevented.Type: ApplicationFiled: August 22, 2018Publication date: June 4, 2020Inventors: Robin Daniels, Thomas Morton, Thomas Roberts, Christopher Parry, Richard Goodyear, Mark R. Holden, Donald E. Willey
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Patent number: 4635306Abstract: Therapy cushions are provided having angular body supporting surfaces. The cushions can be juxtapositioned to orient patients in various positions for achieving effective bronchial drainage. First and second cushions have two adjoining 90.degree. abutment surfaces with corresponding abutment corners. Each of the surfaces terminate at flattened end areas from which extend body-contacting sloping portions. The sloping portion of one cushion is indented and includes a predetermined inclined surface. A wedge cushion may be used to tilt the patient.Type: GrantFiled: January 22, 1985Date of Patent: January 13, 1987Assignees: Rose L. Arnold, Ned M. RafterInventor: Donald E. Willey
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Patent number: D289354Type: GrantFiled: January 22, 1985Date of Patent: April 21, 1987Assignees: Rose L. Arnold, Ned M. RafterInventor: Donald E. Willey