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公开(公告)号：US20160333773A1
公开(公告)日：2016-11-17
申请号：US15106189
申请日：2013-12-19
Applicant: VOLVO TRUCK CORPORATION
Inventor： Martin BAUER , Ulf ARONSSON
CPC classification number: F02B37/004 , F02B37/013 , F02B37/164 , F02B41/00 , F02B41/10 , F02D41/0007 , F02M26/08 , F02M26/24 , F02M26/27 , F02M26/28 , F02M26/43 , Y02T10/144 , Y02T10/16 , Y02T10/163
Abstract: An internal combustion engine system includes an internal combustion engine, an exhaust system, an exhaust gas recirculation circuit and a turbocharger including a first turbine interacting with a first compressor for charging air to the internal combustion engine. An exhaust gas recirculation passage is arranged to divert exhaust gases from the internal combustion engine upstream the first turbine and to debouch the exhaust gases downstream the first compressor. The internal combustion engine includes a bleed air channel which is located to divert compressed air at a location in or downstream from the first compressor and upstream of the internal combustion engine. A second turbine is arranged for receiving bleed air from the bleed air channel to recover energy from the bleed air channel. A vehicle including such an internal combustion engine system is also provided.
Abstract translation: 内燃机系统包括内燃机，排气系统，排气再循环回路和涡轮增压器，该涡轮增压器包括与第一压缩机相互作用的第一涡轮机，用于向内燃机充气。 排气再循环通道布置成将来自第一涡轮机上游的内燃机的废气转移到第一压缩机下游的废气。 所述内燃机包括放气通道，所述放气通道位于所述第一压缩机内或所述内燃机上游的位置处的压缩空气。 第二涡轮机布置成用于从放气通道接收排出空气以从放气通道回收能量。 还提供了包括这种内燃机系统的车辆。
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公开(公告)号：US20220307433A1
公开(公告)日：2022-09-29
申请号：US17635744
申请日：2019-08-20
Applicant: VOLVO TRUCK CORPORATION
Inventor： Fredrik RAHM , Martin BAUER
Abstract: Provided are methods for operating an internal combustion engine system including: an internal combustion engine provided with a plurality of cylinders, each of which being provided with an air inlet valve and an exhaust gas valve; a fuel supply system configured to supply fuel to the cylinders; an air intake system and an exhaust gas system; a turbocharging arrangement comprising an intake air compressor arranged in the air intake system and an exhaust gas turbine arranged in the exhaust gas system, wherein the intake air compressor is operatively connected to the exhaust gas turbine; a controllable gas feeding device arranged in the air intake system downstream the intake air compressor; an exhaust gas aftertreatment system arranged downstream the exhaust gas turbine; and a wastegate.
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公开(公告)号：US20210131341A1
公开(公告)日：2021-05-06
申请号：US17256482
申请日：2018-06-29
Applicant: VOLVO TRUCK CORPORATION
Inventor： Martin BAUER , Fredrik RAHM
IPC: F02B37/04 , F02B37/00 , F02D41/00 , F02D29/06 , F02M35/10 , F02M35/12 , F02D9/02 , F02B39/10 , F04C2/12
Abstract: The invention relates to a method of operating a four stroke internal combustion engine system (1), the engine system (1) comprising:—a four stroke internal combustion engine (2) provided with an intake duct (5),—a turbo compressor (6″) arranged to compress intake flow in the intake duct (5), and—a displacement machine (7) provided in the intake duct (5) downstream the turbo compressor (6″), wherein the displacement machine (7) is arranged to displace intake flow from an inlet to an outlet thereof. The method comprises the step of: operating the displacement machine (7) in a first mode where a pressure ratio (PR) given by a pressure at the outlet of the displacement machine (7) divided by a pressure at the inlet of the displacement machine (7) is substantially equal to 1. The invention also relates to a four stroke internal combustion engine system arranged to be operated by the above method.
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公开(公告)号：US20180171903A1
公开(公告)日：2018-06-21
申请号：US15738640
申请日：2016-06-20
Applicant: VOLVO TRUCK CORPORATION
Inventor： Ulf ARONSSON , Martin BAUER , Mohammed ADLOUNI
CPC classification number: F02D41/0065 , F01N3/021 , F01N3/2066 , F02B37/004 , F02B37/013 , F02B37/025 , F02B37/18 , F02B37/183 , F02B41/10 , F02D41/0007 , F02M26/05 , F02M26/08 , F02M26/09 , F02M26/16 , F02M26/38 , F02M26/42 , Y02T10/144 , Y02T10/163 , Y02T10/47
Abstract: An internal combustion engine system includes an internal combustion engine, a first turbine unit receiving exhaust gases from the internal combustion engine, the turbine unit having a compressor for compressing intake air and feeding the intake air by an air intake line to the internal combustion engine, and an exhaust gas recirculation line connecting the air intake line with an exhaust as line of the internal combustion engine at a position upstream the first turbine unit. A bypass line connects the exhaust gas recirculation line to the exhaust gas line at a position downstream of the turbine unit, the bypass line having an arrangement for controlling the exhaust gas flow from the exhaust gas recirculation line to the exhaust gas line.
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