Patents by Inventor Manaf Hasan
Manaf Hasan 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: 10488122Abstract: A heat exchanger is comprised of two heat exchanger sections, at least one of which is provided with a floating header to accommodate differential thermal expansion. The two heat exchanger sections are enclosed by an inner shell wall, and an external connecting passage is provided outside the inner shell wall, through which one of the fluids flows between the two heat exchanger sections. The external connecting passage is enclosed by an outer shell. The inner wall is provided with openings which communicate with the external connecting passage. The openings may be in the form of a substantially continuous gap or discrete openings. Specific examples of heat exchangers with this construction include a steam generator, a steam generator and combined catalytic converter, and a water gas shift reactor.Type: GrantFiled: November 22, 2016Date of Patent: November 26, 2019Assignee: Dana Canada CorporationInventors: Doug Vanderwees, Manaf Hasan, Jianan Huang, Brian E. Cheadle
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Publication number: 20170198987Abstract: A heat exchanger is comprised of two heat exchanger sections, at least one of which is provided with a floating header to accommodate differential thermal expansion. The two heat exchanger sections are enclosed by an inner shell wall, and an external connecting passage is provided outside the inner shell wall, through which one of the fluids flows between the two heat exchanger sections. The external connecting passage is enclosed by an outer shell. The inner wall is provided with openings which communicate with the external connecting passage. The openings may be in the form of a substantially continuous gap or discrete openings. Specific examples of heat exchangers with this construction include a steam generator, a steam generator and combined catalytic converter, and a water gas shift reactor.Type: ApplicationFiled: November 22, 2016Publication date: July 13, 2017Inventors: Doug Vanderwees, Manaf Hasan, Jianan Huang, Brian E. Cheadle
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Patent number: 9528777Abstract: A heat exchanger is comprised of two heat exchanger sections, at least one of which is provided with a floating header to accommodate differential thermal expansion. The two heat exchanger sections are enclosed by an inner shell wall, and an external connecting passage is provided outside the inner shell wall, through which one of the fluids flows between the two heat exchanger sections. The external connecting passage is enclosed by an outer shell. The inner wall is provided with openings which communicate with the external connecting passage. The openings may be in the form of a substantially continuous gap or discrete openings. Specific examples of heat exchangers with this construction include a steam generator, a steam generator and combined catalytic converter, and a water gas shift reactor.Type: GrantFiled: June 29, 2012Date of Patent: December 27, 2016Assignee: Dana Canada CorporationInventors: Doug Vanderwees, Manaf Hasan, Jianan Huang, Brian E. Cheadle
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Patent number: 8919746Abstract: A humidifier for a fuel cell system comprises a stack of thin plates having planar sealing surfaces at their edges. A water permeable membrane is provided between each pair of plates. Each plate defines a gas flow passage along its top and bottom surfaces, with an inlet and outlet defined along edges of the plate, and a flow field extending between the inlet and outlet openings. Inlet and outlet passages connect the inlet and outlet openings to the flow field, and the planar sealing surfaces on both sides of the plate include bridging portions which extend across the inlet and outlet passages. Support structures are provided throughout the flow field and the inlet and outlet passages to support the membrane and diffusion medium layer(s). The support structures may optionally be connected together by webs having holes for flow distribution between the top and bottom of each plate.Type: GrantFiled: September 6, 2011Date of Patent: December 30, 2014Assignee: Dana Canada CorporationInventors: Doug Vanderwees, Manaf Hasan, Jon Wilson, Jack Kummerow
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Publication number: 20140000845Abstract: A heat exchanger is comprised of two heat exchanger sections, at least one of which is provided with a floating header to accommodate differential thermal expansion. The two heat exchanger sections are enclosed by an inner shell wall, and an external connecting passage is provided outside the inner shell wall, through which one of the fluids flows between the two heat exchanger sections. The external connecting passage is enclosed by an outer shell. The inner wall is provided with openings which communicate with the external connecting passage. The openings may be in the form of a substantially continuous gap or discrete openings. Specific examples of heat exchangers with this construction include a steam generator, a steam generator and combined catalytic converter, and a water gas shift reactor.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Inventors: Doug Vanderwees, Manaf Hasan, Jianan Huang, Brian E. Cheadle
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Publication number: 20120181712Abstract: A humidifier for a fuel cell system comprises a stack of thin plates having planar sealing surfaces at their edges. A water permeable membrane is provided between each pair of plates. Each plate defines a gas flow passage along its top and bottom surfaces, with an inlet and outlet defined along edges of the plate, and a flow field extending between the inlet and outlet openings. Inlet and outlet passages connect the inlet and outlet openings to the flow field, and the planar sealing surfaces on both sides of the plate include bridging portions which extend across the inlet and outlet passages. Support structures are provided throughout the flow field and the inlet and outlet passages to support the membrane and diffusion medium layer(s). The support structures may optionally be connected together by webs having holes for flow distribution between the top and bottom of each plate.Type: ApplicationFiled: September 6, 2011Publication date: July 19, 2012Applicant: Dana Canada CorporationInventors: Doug Vanderwees, Manaf Hasan, Jon Wilson, Jack Kummerow
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Patent number: 8034142Abstract: A gas/liquid separator is provided in which separation performance for fluid into gas and liquid is enhanced. A gas/liquid separator includes a body which separates a circulation gas into water and hydrogen gas in a separating space, a supply port from which the circulation gas flows into the inner space, the supply port being provided on the side wall surface forming the separating space, and a discharge port through which the separated hydrogen gas flows out of the separating space, the discharge port being provided on the side wall surface. In this case, the discharge port is provided above the supply port.Type: GrantFiled: March 24, 2006Date of Patent: October 11, 2011Assignee: Nissan Motor Co., Ltd.Inventors: Akihiro Sakakida, Hiroshi Tanaka, Junichi Hasegawa, Ken Nakayama, Kazuhiro Kageyama, Satoshi Okano, Takayoshi Nabeta, Yoshinori Nakano, Nobuo Sakatsume, Kotaro Akashi, Hisashi Niioka, Douglas Vanderwees, Mark Britton, Manaf Hasan, Craig Hogg
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Publication number: 20090205297Abstract: A gas/liquid separator in which separation performance for fluid into gas and liquid is enhanced is provided. A gas/liquid separator 10 includes a body 40 which separates a circulation gas into water and hydrogen gas in a separating space S1, a supply port 45 from which the circulation gas flows into the inner space S1, the supply port 45 being provided on the side wall surface 43 forming the separating space S1, and a discharge port48 through which the separated hydrogen gas flows out of the separating space S1, the discharge port 48 being provided on the side wall surface 43. In this case, the discharge port 48 is provided above the supply port 45.Type: ApplicationFiled: March 24, 2006Publication date: August 20, 2009Applicants: NISSAN MOTOR CO., LTD., DANA CANADA CORPORATIONInventors: Akihiro Sakakida, Hiroshi Tanaka, Junichi Hasegawa, Ken Nakayama, Kazuhiro Kageyama, Satoshi Okano, Takayoshi Nabeta, Yoshinori Nakano, Nobuo Sakatsume, Kotaro Akashi, Hisashi Niioka, Douglas Vanderwees, Mark Britton, Manaf Hasan, Craig Hogg