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公开(公告)号：US10274094B2
公开(公告)日：2019-04-30
申请号：US14777426
申请日：2014-03-11
Applicant: Westport Power Inc.
Inventor： Kamal Hatami Aghdam
Abstract: A check valve with improved response time comprises a valve member which has a central portion of a substantially convex shape and a guide portion that surrounds the central portion. The central portion has a central convex curvature extending towards the outlet port of the check valve, in the direction of the fluid flow. The guide portion has a weight to area ratio that is smaller than the weight to area ratio of the central portion. Such a check valve has an overall reduced weight of the valve member allowing a faster response time when the valve switches between its closed and open positions.
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公开(公告)号：US20160032920A1
公开(公告)日：2016-02-04
申请号：US14777426
申请日：2014-03-11
Applicant: WESTPORT POWER INC.
Inventor： Kamal Hatami Aghdam
CPC classification number: F04B53/102 , F04B15/06 , F04B19/22 , F04B53/10 , F04B53/14 , F04B53/16 , F04B2015/081 , F16K15/023 , F16K15/028 , F16K27/0209
Abstract: A check valve with improved response time comprises a valve member which has a central portion of a substantially convex shape and a guide portion that surrounds the central portion. The central portion has a central convex curvature extending towards the outlet port of the check valve, in the direction of the fluid flow. The guide portion has a weight to area ratio that is smaller than the weight to area ratio of the central portion. Such a check valve has an overall reduced weight of the valve member allowing a faster response time when the valve switches between its closed and open positions.
Abstract translation: 具有改善的响应时间的止回阀包括具有基本凸起形状的中心部分和围绕中心部分的引导部分的阀构件。 中心部分具有沿着流体流动的方向朝向止回阀的出口延伸的中心凸起曲率。 引导部分的重量/面积比小于中心部分的重量/面积比。 这种止回阀具有整体减小的阀构件的重量，允许当阀在其闭合位置和打开位置之间切换时更快的响应时间。
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Patent Agency Ranking
公开(公告)号：US10551002B2
公开(公告)日：2020-02-04
申请号：US15561943
申请日：2016-03-24
Applicant: Westport Power Inc.
Inventor： Kamal Hatami Aghdam , Davor Baros , Cameron G. D. Scott , Timothy S. Coleman , Samira Barakat-Hamel
Abstract: A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump having an inlet disposed within the cryogen space for receiving a quantity of the fluid from the cryogen space, and an outlet for delivering the fluid therefrom, and a pump drive unit for driving the pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle.
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公开(公告)号：US20170146010A1
公开(公告)日：2017-05-25
申请号：US15300249
申请日：2015-03-25
Applicant: Westport Power Inc.
Inventor： Timothy S. Coleman , Kamal Hatami Aghdam
Abstract: A piston seal assembly is disclosed comprising a seal and a seal energizer which supports the seal. The piston seal assembly comprises one component that is designed to position the seal energizer in a fixed axial position within the piston groove. In one embodiment, the seal energizer has the shape of a split ring with at least one of its lateral surfaces shaped to position the energizer in a fixed position within a piston groove. In other embodiments the piston seal assembly comprises a spacer that is positioned next to the seal energizer within the piston groove and is designed to position the seal energizer in a fixed axial position. The piston seal assembly can comprise a seal that has a portion which protrudes between the seal energizer and the piston groove wall such that it positions the seal energizer in a fixed axial position within the piston groove.
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公开(公告)号：US20200149682A1
公开(公告)日：2020-05-14
申请号：US16740336
申请日：2020-01-10
Applicant: Westport Power Inc.
Inventor： Kamal Hatami Aghdam , Davor Baros , Cameron G.D. Scott , Timothy S. Coleman , Samira Barakat-Hamel
Abstract: A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump immersed in the cryogen space having an inlet for receiving a quantity of fluid from the cryogen space, and an outlet for delivering the fluid therefrom. The pump assembly further includes a pump drive unit for driving the immersed pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle.
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公开(公告)号：US10316837B2
公开(公告)日：2019-06-11
申请号：US15300249
申请日：2015-03-25
Applicant: Westport Power Inc.
Inventor： Timothy S. Coleman , Kamal Hatami Aghdam
Abstract: A piston seal assembly is disclosed comprising a seal and a seal energizer which supports the seal. The piston seal assembly comprises one component that is designed to position the seal energizer in a fixed axial position within the piston groove. In one embodiment, the seal energizer has the shape of a split ring with at least one of its lateral surfaces shaped to position the energizer in a fixed position within a piston groove. In other embodiments the piston seal assembly comprises a spacer that is positioned next to the seal energizer within the piston groove and is designed to position the seal energizer in a fixed axial position. The piston seal assembly can comprise a seal that has a portion which protrudes between the seal energizer and the piston groove wall such that it positions the seal energizer in a fixed axial position within the piston groove.
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公开(公告)号：US20180119883A1
公开(公告)日：2018-05-03
申请号：US15561943
申请日：2016-03-24
Applicant: Westport Power Inc.
Inventor： Kamal Hatami Aghdam , Davor Baros , Cameron G.D. Scott , Timothy S. Coleman , Samira Barakat-Hamel
CPC classification number: F17C9/00 , F04B15/08 , F04B23/021 , F04B2015/081 , F17C5/02 , F17C2201/0109 , F17C2201/0119 , F17C2201/0147 , F17C2201/032 , F17C2201/056 , F17C2203/014 , F17C2203/03 , F17C2203/0629 , F17C2221/012 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2223/047 , F17C2227/0142 , F17C2227/0178 , F17C2260/031 , F17C2270/0168 , F17C2270/0171 , F17C2270/0173 , Y02E60/321
Abstract: A fluid storage and pressurizing assembly includes a storage receptacle and a pump assembly. The storage receptacle includes an inner vessel defining a cryogen space for storing a fluid at a storage pressure and a cryogenic temperature, an outer vessel surrounding the inner vessel, and an insulated space between the inner vessel and the outer vessel, and a pump assembly. The pump assembly includes a pump having an inlet disposed within the cryogen space for receiving a quantity of the fluid from the cryogen space, and an outlet for delivering the fluid therefrom, and a pump drive unit for driving the pump, the pump drive unit being at least partially disposed within a space defined by the storage receptacle
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