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公开(公告)号：US09909513B2
公开(公告)日：2018-03-06
申请号：US14569767
申请日：2014-12-14
Applicant: Westport Power Inc. , GM Global Technology Operations LLC
Inventor： Raymond Bzymek , Mark E. Dunn , Ning Wu , Dehong Zhang , Craig D. Marriott , Joshua D. Cowgill , Ben W. Moscherosch
CPC classification number: F02D19/0626 , F02B17/005 , F02D19/061 , F02D19/0615 , F02D19/0623 , F02D19/0631 , F02D19/0647 , F02D19/0689 , F02D19/0692 , F02D19/081 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02M43/00 , Y02T10/36
Abstract: A technique for fuel system protection for an internal combustion engine includes introducing a directly injected fuel into a combustion chamber through a direct fuel injector, introducing a fumigated fuel upstream of an intake valve, selectively operating the internal combustion engine with at least one of the directly injected fuel and the fumigated fuel, determining a temperature of the direct fuel injector as a first function of engine operating parameters, and performing a temperature mitigation technique when the temperature rises above a first predetermined value such that the temperature is maintained below a second predetermined value.
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公开(公告)号：US09284894B2
公开(公告)日：2016-03-15
申请号：US13912700
申请日：2013-06-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Hatem Zakaria Orban , Craig D. Marriott , Robert S. McAlpine , Dustin Loveland
CPC classification number: F02D17/026 , F02B75/06
Abstract: In one exemplary embodiment, a method for active fuel management in an engine having a plurality of cylinders is provided, the method including stopping a fuel flow into a first set of the plurality of cylinders, the stopping causing a deactivation of the first set of cylinders and continuing injection of fuel into a second set of the plurality of cylinders to provide power while the first set of cylinders are deactivated. The method also includes injecting gas into the first set of the plurality of cylinders when each of the first set of cylinders are at bottom dead center, the injected gas increasing a cylinder pressure in each of the first set of cylinders that reduces an amplitude of first order torque variations during operation of the engine while the first set of cylinders are deactivated.
Abstract translation: 在一个示例性实施例中，提供了一种用于具有多个气缸的发动机中的主动燃料管理的方法，所述方法包括停止燃料流入所述多个气缸的第一组，所述停止导致所述第一组气缸 以及当所述第一组气缸停用时，继续将燃料喷射到所述多个气缸的第二组中以提供动力。 该方法还包括当第一组气缸中的每一个都处于下死点时，将气体注入第一组气缸中，喷射的气体增加第一组气缸中的每一个中的气缸压力，从而减小第一组 在第一组气缸停用时，在发动机运转期间发出顺序扭矩变化。
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公开(公告)号：US20140360459A1
公开(公告)日：2014-12-11
申请号：US13912700
申请日：2013-06-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Hatem Zakaria Orban , Craig D. Marriott , Robert S. McAlpine , Dustin Loveland
CPC classification number: F02D17/026 , F02B75/06
Abstract: In one exemplary embodiment, a method for active fuel management in an engine having a plurality of cylinders is provided, the method including stopping a fuel flow into a first set of the plurality of cylinders, the stopping causing a deactivation of the first set of cylinders and continuing injection of fuel into a second set of the plurality of cylinders to provide power while the first set of cylinders are deactivated. The method also includes injecting gas into the first set of the plurality of cylinders when each of the first set of cylinders are at bottom dead center, the injected gas increasing a cylinder pressure in each of the first set of cylinders that reduces an amplitude of first order torque variations during operation of the engine while the first set of cylinders are deactivated.
Abstract translation: 在一个示例性实施例中，提供了一种用于具有多个气缸的发动机中的主动燃料管理的方法，所述方法包括停止燃料流入所述多个气缸的第一组，所述停止导致所述第一组气缸 以及当所述第一组气缸停用时，继续将燃料喷射到所述多个气缸的第二组中以提供动力。 该方法还包括当第一组气缸中的每一个都处于下死点时，将气体注入第一组气缸中，喷射的气体增加第一组气缸中的每一个中的气缸压力，从而减小第一组 在第一组气缸停用时，在发动机运转期间发出顺序扭矩变化。
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