-
31.发明授权公开(公告)号：US10371065B2
公开(公告)日：2019-08-06
申请号：US15735871
申请日：2016-06-10
Applicant: WESTPORT POWER INC.
Inventor： David K. Mumford , Derek Puzzuoli , Jordan C. Haas , Wesley A. Brown , Victor Woo , Joshua W. Steffen
Abstract: Disclosed are a fluid control system and method for controlling delivery of two variable pressure fluids to maintain a pressure bias between the two fluids within an end use device. The system employs an actively controlled vent valve which can be integrated into a fluid control module in preferred embodiments and is actuated to an open position to decrease fluid pressure in a first fluid supply line when a determined pressure differential reversal exceeds a predetermined threshold pressure differential reversal. The disclosed system is particularly useful in a high pressure direct injection (HPDI) multi-fueled engine system where the first fluid is a gaseous fuel and the second fluid is a liquid fuel. The fluid control system and method of controlling it provide for improved control of venting along with protecting system components from high back pressure and cross contamination of fluids.
-
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.
-
公开(公告)号：US20180223780A1
公开(公告)日：2018-08-09
申请号：US15750109
申请日：2016-08-04
Inventor： Michael C. WICKSTONE , Alain M.J. TOUCHETTE , Randall T. MARK , Kory L. ZELLER , Jeremy GARNIER , Mark GRAHAM , Mehmet DÖNMEZ , Cüneyt ALTINOL , Michael DE BRUIJN
CPC classification number: F02M43/04 , F02D19/0642 , F02D19/0694 , F02M21/02 , F02M55/02 , F02M55/025 , F02M63/029 , Y02T10/32 , Y02T10/36
Abstract: A multi-fuel rail apparatus for an internal combustion engine communicates fuel from 10 a first fuel source and a second fuel source to a plurality of fuel injectors. Each fuel injector receives fuel from the multi-fuel rail apparatus through a branch connection for each fuel. The multi fuel rail apparatus has a first elongate member including a first longitudinal bore spaced apart from a second longitudinal bore and first and second fuel inlets for fluidly communicating first and second fuels into the first and 15 second longitudinal bores respectively. There is a branch connecting structure for each fuel injector along the first elongate member for fluidly connecting the first and second longitudinal bores with respective branch connections from respective fuel injectors.
-
公开(公告)号：US10030613B2
公开(公告)日：2018-07-24
申请号：US14677971
申请日：2015-04-02
Applicant: Westport Power Inc.
Inventor： Bradley E. Melanson , David K. Mumford , Paul M. Blomerus , Melissa S. McKinnon
IPC: F02B73/00 , F02D25/00 , F02M21/02 , F02G5/04 , F02M31/125 , F02N19/10 , F02M21/06 , F02M31/18 , F02G5/00 , F02M31/16 , F02B63/06
Abstract: A method for supplying gaseous fuel from a liquid state to an internal combustion engine includes employing a second internal combustion engine as a source of energy, pumping the gaseous fuel in the liquid state by transforming energy from the source of energy into mechanical work for the pumping, exchanging waste heat from the second internal combustion engine in a first heat exchange fluid circulating through the second internal combustion engine to a second heat exchange fluid, vaporizing the gaseous fuel pumped from the liquid state with heat from the second heat exchange fluid, and delivering the gaseous fuel vaporized from the liquid state to the internal combustion engine. Pressure of the gaseous fuel delivered to the internal combustion engine is maintained within a predetermined range of tolerance by the pumping.
-
公开(公告)号：US09995407B2
公开(公告)日：2018-06-12
申请号：US14855121
申请日：2015-09-15
Applicant: EMER, S.P.A. , WESTPORT POWER INC.
Inventor： Giulia Omesti , Roberto Defilippi , Soroush Farzin , Giulio Brizzolari
CPC classification number: F16K17/003 , F16K17/16 , F16K17/38 , F16K17/383 , F16K17/40 , F16K17/403 , F16K37/0008 , F16K37/0058 , F17C13/04 , F17C2205/0314 , F17C2205/0332 , F17C2205/0382 , F17C2205/0394 , F17C2221/033 , F17C2221/035 , F17C2223/0123 , F17C2223/0153 , F17C2223/033 , F17C2223/035 , F17C2223/036 , F17C2260/021 , F17C2260/023 , F17C2270/0168
Abstract: A safety device for a cylinder holding gaseous fluids under pressure is disclosed. The safety device has a device body in which a passage is defined for a fluid; the passage extends from an entry aperture, suitable for being placed in fluidic communication with a cylinder, to an exit aperture. An obturator air tightly engages the passage, the obturator is movable from a first position, in which it indicates the presence of fluid at a pressure below a first predefined pressure threshold value, inside the cylinder, and a second position, in which it indicates the presence of fluid at a pressure above the first predefined pressure threshold value inside the cylinder. At least one temperature and/or pressure-sensitive relief device is positioned in the obturator in such a way that, upon exceeding a predefined temperature threshold or upon exceeding a second predefined pressure threshold, the relief device opens the passage for the fluid and permits the flow of fluid from the entry aperture towards the exit aperture.
-
Patent Agency Ranking
公开(公告)号：US09885299B2
公开(公告)日：2018-02-06
申请号：US14777398
申请日：2014-03-06
Applicant: Westport Power Inc.
Inventor： Alain Touchette , James D. Walker , Jordan Haas
IPC: F02D41/00 , F02D41/12 , F02D41/38 , F02D19/10 , F02D19/06 , F02D41/30 , F02D41/22 , F02D19/08 , F02D41/40
CPC classification number: F02D41/0027 , F02D19/0605 , F02D19/0623 , F02D19/0665 , F02D19/0678 , F02D19/0681 , F02D19/0684 , F02D19/0694 , F02D19/08 , F02D19/10 , F02D41/0025 , F02D41/123 , F02D41/221 , F02D41/30 , F02D41/3047 , F02D41/3872 , F02D41/402 , F02D2041/224 , F02D2041/3881 , Y02T10/36
Abstract: A method for fuel regulation during a non-motoring operating mode of an internal combustion engine is provided. A fuel regulator employs a first fuel to regulate pressure of a second fuel. The first fuel is communicated to the fuel regulator through a first fuel circuit. The method comprises actuating a fuel injector that introduces the first fuel and the second fuel into a combustion chamber of the internal combustion engine during the non-motoring operating mode. The fuel injector is actuated with an injection command signal having a pulse width below a predetermined maximum value whereby no fuel is injected into the combustion chamber and the first fuel drains from the first fuel circuit through the fuel injector to a supply tank.
-
公开(公告)号：US20170184056A1
公开(公告)日：2017-06-29
申请号：US15459182
申请日：2017-03-15
Applicant: Westport Power Inc.
Inventor： Bradley E. Melanson , Melissa S.A. McKinnon , Paul M. Blomerus
CPC classification number: F02M21/0221 , B60K15/07 , B60K2015/03315 , B60Y2200/31 , B61C5/00 , F02D19/022 , F02D19/023 , F02M21/0215 , F02M21/0218 , F02M21/023 , F02M21/029 , F02M21/04 , F02M21/06 , F02M31/00 , F17C5/02 , F17C5/06 , F17C9/02 , F17C2201/054 , F17C2205/0126 , F17C2205/0157 , F17C2221/032 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2223/043 , F17C2223/046 , F17C2225/0123 , F17C2225/036 , F17C2227/0135 , F17C2227/0185 , F17C2227/0323 , F17C2227/0332 , F17C2227/0393 , F17C2250/01 , F17C2250/03 , F17C2250/032 , F17C2250/0408 , F17C2250/043 , F17C2250/0434 , F17C2250/0439 , F17C2250/0491 , F17C2250/0636 , F17C2265/066 , F17C2270/0173 , Y02T10/16 , Y02T10/32
Abstract: A method for supplying gaseous fuel from a tender car to an internal combustion engine on a locomotive comprising storing the gaseous fuel at a cryogenic temperature in a cryogenic storage tank on the tender car; pumping the gaseous fuel to a first pressure from the cryogenic storage tank; vaporizing the gaseous fuel at the first pressure; and conveying the vaporized gaseous fuel to the internal combustion engine; whereby a pressure of the vaporized gaseous fuel is within a range between 310 bar and 575 bar.
-
公开(公告)号：US20170175657A1
公开(公告)日：2017-06-22
申请号：US15118423
申请日：2015-02-10
Applicant: WESTPORT POWER INC.
Inventor： Wei FEI , James D WALKER
CPC classification number: F02D41/064 , F02D19/0628 , F02D19/0681 , F02D19/0689 , F02D19/0694 , F02D19/10 , F02D19/105 , F02D41/0025 , F02D41/0027 , F02D2200/0414 , F02D2200/0602 , Y02T10/36
Abstract: Starting a gaseous fuelled engine employing a pilot fuel at cold temperatures is challenging due to reduced ignitability and combustion efficiency of the fuel(s), and the increased viscosity of engine oil. A technique for starting a compression ignition, gaseous fuelled internal combustion engine employing a pilot fuel comprises determining one of a normal start condition and a cold start condition; during the normal start condition, introducing the pilot fuel into a combustion chamber of the internal combustion engine when the pilot fuel pressure rises above a first pressure; during the cold start condition, introducing the pilot fuel into the combustion chamber when the pilot fuel pressure rises above a second pressure that is higher than the first pressure; and selectively introducing the gaseous fuel into the combustion chamber.
-
公开(公告)号：US20170130900A1
公开(公告)日：2017-05-11
申请号：US15313945
申请日：2015-05-13
Applicant: Westport Power Inc.
Inventor： Martin A. Strange , Brian Girard
IPC: F17C3/08
CPC classification number: F17C3/08 , F17C13/08 , F17C2201/0109 , F17C2201/035 , F17C2201/056 , F17C2203/014 , F17C2203/018 , F17C2203/03 , F17C2203/0391 , F17C2203/0629 , F17C2205/0192 , F17C2223/0161 , F17C2223/033 , F17C2260/011 , F17C2270/0168
Abstract: Unconstrained rotational movement of an inner vessel with respect to an outer vessel at one end of a cryogenic storage vessel increases stress in supports at an opposite end. A storage vessel for holding a cryogenic fluid comprises an inner vessel defining a cryogen space and having a longitudinal axis, and an outer vessel spaced apart from and surrounding the inner vessel, defining a thermally insulating space between the inner and outer vessels. A structure for supporting the inner vessel within the outer vessel at one end comprises an inner vessel support bracket connected with the inner vessel, an outer vessel support bracket connected with the outer vessel, and an elongated support extending between and mutually engaging the inner and outer support brackets to constrain radial and rotational movement of the inner vessel with respect to the outer vessel and to allow axial movement of the inner vessel with respect to the outer vessel along the longitudinal axis.
-
公开(公告)号：US20170067423A1
公开(公告)日：2017-03-09
申请号：US15121946
申请日：2015-02-20
Applicant: WESTPORT POWER INC.
Inventor： Roderick C.S. BEAZLEY , Philip C. MILLWARD , William D. TENNY
Abstract: Diesel-cycle engines are known to have greater power, torque and efficiency compared to Otto-cycle engines of like displacement. When the fuel is a gaseous fuel, such as natural gas, a pilot fuel (such as diesel) is normally required to assist with ignition in a gaseous fuelled Diesel-cycle engine. It would be advantageous to reduce the power, torque and efficiency gap between a Diesel-cycle engine and a gaseous fuelled Otto-cycle engine. A combustion apparatus for a gaseous fuelled internal combustion engine comprises a combustion chamber defined by a cylinder bore, a cylinder head and a piston reciprocating within the cylinder bore. A diameter of the cylinder bore is at least 90 mm and a ratio between the diameter and a stroke length of the piston is at most 0.95. There is at least one intake passage for delivering a charge to the combustion chamber, and at least one intake valve is configured in the cylinder head and cooperates with the intake passage to create a predominant tumble flow motion in the combustion chamber.
Abstract translation: 已知柴油循环发动机与类似位移的奥托循环发动机相比具有更大的功率，扭矩和效率。 当燃料是诸如天然气的气体燃料时，通常需要引燃燃料（例如柴油）来辅助气态燃料柴油循环发动机点火。 减少柴油循环发动机和气体燃料奥托循环发动机之间的功率，扭矩和效率的差距将是有利的。 用于气态燃料内燃机的燃烧装置包括由气缸孔，气缸盖和在气缸孔内往复运动的活塞限定的燃烧室。 气缸孔的直径至少为90mm，并且活塞的直径和行程长度之间的比率至多为0.95。 至少有一个进气通道用于将燃料输送到燃烧室，并且至少一个进气门配置在气缸盖中，并与进气通道配合以在燃烧室中产生主要的滚筒流动。
-
-
-
-
-
-
-
-
-
Search Results
182
records
(took 0.019 seconds)
