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公开(公告)号：EP3008324A1
公开(公告)日：2016-04-20
申请号：EP14810209.8
申请日：2014-06-13
发明人： FLETCHER, Dave , GRAICHEN, Brian, M. , HAMPTON, Keith , GILMER, Matt , MILLER, James, H. , LONG, Steve
IPC分类号： F02M23/09
CPC分类号： F04D27/003 , F02B37/16 , F02B37/164 , F02B2037/125 , F02D41/0007 , F02M21/0215 , F02M35/10229 , Y02T10/144 , Y02T10/32 , Y02T10/42
摘要： An engine system having a compressor coupled to an engine and supplying air to an intake manifold, a throttle controlling the supply of air from the compressor to the intake manifold, a compressor recirculation valve (CRV) having a pneumatic control chamber, and a throttle aspirator having its motive section in fluid communication with an inlet of the throttle and its discharge section in fluid communication with an outlet of the throttle and its suction port in fluid communication with the pneumatic control chamber of the CRV. Such an engine system automatically minimizes surge during boost without a control system activating the CRV. Here, the CRV operates purely on the changes in pressure within the system forming a loop that resets itself. In another embodiment, a gate valve and a vacuum canister may be included rather than having the throttle aspirator directly connected to the CRV's pneumatic control chamber.
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公开(公告)号：EP3008308B1
公开(公告)日：2019-05-01
申请号：EP14810175.1
申请日：2014-06-13
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公开(公告)号：EP3008324B1
公开(公告)日：2019-03-13
申请号：EP14810209.8
申请日：2014-06-13
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公开(公告)号：EP3022431B1
公开(公告)日：2018-06-13
申请号：EP14826613.3
申请日：2014-07-17
发明人： FLETCHER, Dave , GRAICHEN, Brian , GILMER, Matt , NIEDERT, Andy , LONG, Steve
IPC分类号： F02M35/10
CPC分类号： F02M35/10229 , F02M35/10157 , Y02T10/144 , Y02T10/146
摘要： An engine system having a flowpath between a junction upstream of a turbocharger and an intake manifold that includes an ejector and an aspirator connected in parallel relative to one another within the flowpath is disclosed. The motive flow through the ejector is in the opposite direction relative to the direction of the motive flow through the aspirator, and both the ejector and the aspirator have a suction port fluidly coupled to a device requiring vacuum. The engine system also includes a first check valve disposed in control of the motive flow through the ejector and a second check valve disposed in control of the motive flow through the aspirator and may also include a control valve in fluid communication within the flowpath upstream or downstream of the ejector and the aspirator that controls the flow into and/or out of both thereof.
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公开(公告)号：EP3022431A1
公开(公告)日：2016-05-25
申请号：EP14826613.3
申请日：2014-07-17
发明人： FLETCHER, Dave , GRAICHEN, Brian , GILMER, Matt , NIEDERT, Andy , LONG, Steve
IPC分类号： F02M35/10
CPC分类号： F02M35/10229 , F02M35/10157 , Y02T10/144 , Y02T10/146
摘要： An engine system having a flowpath between a junction upstream of a turbocharger and an intake manifold that includes an ejector and an aspirator connected in parallel relative to one another within the flowpath is disclosed. The motive flow through the ejector is in the opposite direction relative to the direction of the motive flow through the aspirator, and both the ejector and the aspirator have a suction port fluidly coupled to a device requiring vacuum. The engine system also includes a first check valve disposed in control of the motive flow through the ejector and a second check valve disposed in control of the motive flow through the aspirator and may also include a control valve in fluid communication within the flowpath upstream or downstream of the ejector and the aspirator that controls the flow into and/or out of both thereof.
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公开(公告)号：EP3008308A1
公开(公告)日：2016-04-20
申请号：EP14810175.1
申请日：2014-06-13
发明人： FLETCHER, Dave , GRAICHEN, Brian, M. , HAMPTON, Keith , GILMER, Matt , MILLER, James, H. , LONG, Steve
IPC分类号： F02B37/12
CPC分类号： F02B37/16 , F02B37/12 , F02B37/164 , F02B43/00 , F02B2037/125 , F02B2043/103 , F02M21/0215 , F02M35/10229 , Y02T10/144 , Y02T10/32 , Y02T10/42
摘要： An engine system having a compressor coupled to an engine and supplying air to an intake manifold, a throttle controlling the supply of air from the compressor to the intake manifold, a vacuum reservoir, an aspirator having its motive section in fluid communication with the air intake system upstream of the compressor and its discharge section in fluid communication downstream of the compressor and a suction port in fluid communication with the vacuum reservoir, a compressor recirculation valve having a pneumatic control chamber in fluid communication with downstream air from the compressor and in fluid communication with the vacuum reservoir, a gate valve controlling the fluid communication of the pneumatic control chamber of the compressor recirculation valve with the downstream air and the vacuum reservoir, and a bleed line having a bleed valve in fluid communication with the vacuum reservoir and the pneumatic control chamber of the compressor recirculation valve.
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