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公开(公告)号：US20230124649A1
公开(公告)日：2023-04-20
申请号：US18069445
申请日：2022-12-21
IPC分类号： F02D13/02 , F02M35/104 , F02D41/40 , F02D13/06 , F01N13/10
摘要： Methods and systems are provided for re-combustion of exhaust in a cylinder of a multi-cylinder engine in order to increase the temperature of the exhaust for enhancing catalytic conversion within the multi-cylinder engine. In one example, a method may include expelling combusted gases from the cylinder into an intake manifold via an intake valve during an exhaust stroke, in order to rebreathe in the combusted gases from the intake manifold via the intake valve in a subsequent intake stroke.
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公开(公告)号：US11585284B1
公开(公告)日：2023-02-21
申请号：US17444044
申请日：2021-07-29
IPC分类号： F02D13/02 , F02D41/40 , F01N13/10 , F02D13/06 , F02M35/104
摘要： Methods and systems are provided for re-combustion of exhaust in a cylinder of a multi-cylinder engine in order to increase the temperature of the exhaust for enhancing catalytic conversion within the multi-cylinder engine. In one example, a method may include expelling combusted gases from the cylinder into an intake manifold via an intake valve during an exhaust stroke, in order to rebreathe in the combusted gases from the intake manifold via the intake valve in a subsequent intake stroke.
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公开(公告)号：US20220397048A1
公开(公告)日：2022-12-15
申请号：US17303999
申请日：2021-06-11
摘要： Methods and systems are provided for a turbocharger. In one example, a method may include bypassing exhaust gases flowing to the turbocharger in response to a catalyst temperature being less than a threshold temperature. The bypassing includes opening a bypass valve and adjusting a position of one or more turbine nozzle vanes.
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公开(公告)号：US20220307451A1
公开(公告)日：2022-09-29
申请号：US17212947
申请日：2021-03-25
发明人： Daniel Joseph Styles , Eric Matthew Kurtz , Liangjun Hu , Daniel William Kantrow , Darrell Sparks
摘要： An exhaust gas recirculation system for an engine includes a conduit, and a U-shaped exhaust gas mixer. The conduit is configured to direct an exhaust gas away from an exhaust manifold. The U-shaped exhaust gas mixer is configured to direct exhaust gas from the conduit and into an engine air intake system. The U-shaped exhaust gas mixer is arranged with a pre-mixing cavity configured to disperse the exhaust gas and entraining the exhaust gas into an intake air flow prior to distribution into an intake manifold of an engine.
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公开(公告)号：US10711729B2
公开(公告)日：2020-07-14
申请号：US15654359
申请日：2017-07-19
摘要： Methods and systems for supplying fuel to a diesel engine during a cycle of a cylinder are described. In one example, a cylinder is supplied fuel via two fuel injectors having different fuel flow rates. The two fuel injectors may be operated to provide pilot, main, and post combustion fuel injections during a cycle of a cylinder.
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公开(公告)号：US10544726B2
公开(公告)日：2020-01-28
申请号：US15804965
申请日：2017-11-06
发明人： Eric Matthew Kurtz
摘要： Methods and systems are provided for a ducted fuel injector. In one example, a method may include adjusting a temperature of combustion chamber gases in a combustion chamber and/or adjusting a fuel rail pressure in response to an amount of light sensed by a photodiode of the duct.
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公开(公告)号：US20190234325A1
公开(公告)日：2019-08-01
申请号：US16378278
申请日：2019-04-08
发明人： Eric Matthew Kurtz
CPC分类号： F02D41/0025 , F02D19/0649 , F02D19/081 , F02D41/064 , F02D41/068 , F02D41/3082 , F02D41/401 , F02D41/402 , F02D41/405 , F02D2041/389 , F02D2200/0802 , F02M37/06
摘要： Methods and systems for starting and stopping a diesel engine are presented. In one example, a cetane enhancer is selectively mixed with diesel fuel to provide a cetane enhanced diesel fuel. A diesel engine may be supplied the cetane enhanced diesel fuel after an engine cold start to improve catalyst light off time and engine emissions.
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公开(公告)号：US10352266B2
公开(公告)日：2019-07-16
申请号：US15593202
申请日：2017-05-11
发明人： Eric Matthew Kurtz , Kyle Pohlkamp
摘要： Methods and systems are provided for adjusting fuel injections provided to a cylinder when a fuel rail pressure deviation from a threshold pressure is detected. In one example, a method may include reducing a total number of pilot and/or main fuel injections provided to a cylinder in a given cylinder cycle in response to a reduction of pressure in a fuel rail. In this way, the threshold rail pressure may be maintained, reducing the likelihood the engine will be derated.
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公开(公告)号：US10302030B2
公开(公告)日：2019-05-28
申请号：US15664751
申请日：2017-07-31
发明人： Eric Matthew Kurtz
IPC分类号： G06F19/00 , F02D41/00 , F02D41/06 , F02D41/40 , F02D41/30 , F02M37/06 , F02B75/12 , F02D41/38
摘要： Methods and systems for starting and stopping a diesel engine are presented. In one example, a cetane enhancer is selectively mixed with diesel fuel to provide a cetane enhanced diesel fuel. A diesel engine may be supplied the cetane enhanced diesel fuel after an engine cold start to improve catalyst light off time and engine emissions.
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公开(公告)号：US10163278B2
公开(公告)日：2018-12-25
申请号：US15258660
申请日：2016-09-07
发明人： Eric Matthew Kurtz , Daniel Joseph Styles , Daniel A. Makled , Brien Lloyd Fulton , Lauren Newton
摘要： Methods and systems are provided for a vehicle wirelessly communicating with a central server. In one example, a method may include monitoring faults and sending engine conditions along with driver inputs to the central server for processing.
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