摘要:
The present invention relates to a multi-stage turbocharger arrangement (1), having a high-pressure turbocharger (20) which has a turbine housing (26A), a bearing housing (27A), a compressor housing (28A); and having a low-pressure turbocharger (21) which has a turbine housing (26B), a bearing housing (27B), a compressor housing (28B); wherein the turbine housings (26A, 26B) are combined to form at least one turbine housing unit (26), and/or wherein the bearing housings (27A, 27B) are combined to form at least one bearing housing unit (27), and/or wherein the compressor housings (28A, 28B) are combined to form at least one compressor housing unit (28).
摘要:
A multi-stage turbocharger arrangement (TLA), having a high-pressure stage, the high-pressure turbine of which has an associated first bypass valve; and having a low-pressure stage which is arranged downstream as viewed in the flow direction of the exhaust gases and which has a low-pressure turbine and a second bypass valve, wherein at least one of the bypass valves is arranged in an associated, cooled housing module.
摘要:
The process of active DPF regeneration requires that the DPF be brought to regeneration temperatures in excess of 550° C. to 600° C. for a period of time sufficient to accomplish soot burnoff in the DPF. Similarly, during cold start up it is desirable to bring the catalyst to light off temperature as soon as possible. The large thermal inertia of one or more turbochargers delays the exhaust gas at the DPF from reaching critical temperature quickly. The incorporation of a low thermal inertia, insulated, turbocharger bypass duct avoids thermal energy loss from exhaust gas to the turbine housing and shortens the time for the DPF to reach critical temperature for active DPF regeneration, or in the case of a catalytic converter, shortens time for catalyst to reach light off temperature.
摘要:
An air management assembly (10) for use in an engine (12) with an exhaust manifold (14) that outputs an exhaust gas and an intake manifold (16), with a filter (18) in fluid communication between the exhaust manifold (14) and turbocharger (20). The air management assembly (10) provides a compressor (22), a turbine (24), at least one gaseous fluid cooler (32, 36, 44), at least one bypass (28, 28)′ and a housing (30) where the compressor (22), turbine (24), at least one gaseous fluid cooler (32), (36, 44), bypass (28, 28′), or combination thereof are integrated into the housing (30). The compressor (22) is in fluid communication with the intake manifold (16). The turbine (24) is in fluid communication with the exhaust manifold (14). The turbine (24) and the compressor (22) are moveably coupled and move in conjunction with one another. The gaseous fluid coolers (32, 36, 44) are in fluid communication with the compressor (32), turbine (24), or combination thereof. The bypass (28′) is in fluid communication with an output of the turbine (24) and an input of the compressor (22) for selective bypassing of the gaseous fluid cooler (44).
摘要:
The process of active DPF regeneration requires that the DPF be brought to regeneration temperatures in excess of 550° C. to 600° C. for a period of time sufficient to accomplish soot burnoff in the DPF. Similarly, during cold start up it is desirable to bring the catalyst to light off temperature as soon as possible. The large thermal inertia of one or more turbochargers delays the exhaust gas at the DPF from reaching critical temperature quickly. The incorporation of a low thermal inertia, insulated, turbocharger bypass duct avoids thermal energy loss from exhaust gas to the turbine housing and shortens the time for the DPF to reach critical temperature for active DPF regeneration, or in the case of a catalytic converter, shortens time for catalyst to reach light off temperature.
摘要:
An air management assembly (10) for use in an engine (12) with an exhaust manifold (14) that outputs an exhaust gas and an intake manifold (16), with a filter (18) in fluid communication between the exhaust manifold (14) and turbocharger (20). The air management assembly (10) provides a compressor (22), a turbine (24), at least one gaseous fluid cooler (32, 36, 44), at least one bypass (28, 28)′ and a housing (30) where the compressor (22), turbine (24), at least one gaseous fluid cooler (32), (36, 44), bypass (28, 28), or combination thereof are integrated into the housing (30). The compressor (22) is in fluid communication with the intake manifold (16). The turbine (24) is in fluid communication with the exhaust manifold (14). The turbine (24) and the compressor (22) are moveably coupled and move in conjunction with one another. The gaseous fluid coolers (32, 36, 44) are in fluid communication with the compressor (32), turbine (24), or combination thereof. The bypass (28) is in fluid communication with an output of the turbine (24) and an input of the compressor (22) for selective bypassing of the gaseous fluid cooler (44).
摘要:
One embodiment includes a housing (12) and a valve (10) to be used in an internal combustion engine exhaust breathing system (14). The housing (12) may define one or more inlet passages that receive fluid-flow, and may also define one or more outlet passages that deliver fluid-flow. The valve (10) regulates fluid-flow through the housing (12) and between the passages.
摘要:
The present invention is a an exhaust gas return system (10) for reintroducing condensate generated in exhaust gas from an engine (14) into a compressor (36) of a turbocharger (18), having a turbocharger unit (18) having a turbine (20) and a compressor (36), and a compressor wheel (42) located inside the compressor (36). The present invention also includes a mixing pipe (52) located inside an intake tube (44) for receiving exhaust gas with droplets (54) from an EGR-tube (46), wherein the EGR-tube (46) delivers the exhaust gas with droplets (54) to the mixing pipe (52), mixing the air (41) and the exhaust gas with droplets (54) forming a mixture (64) containing droplets (50), and introducing the mixture (64) and the droplets (50) onto the compressor wheel (42) in an area of low circumferential speed, preventing damage to the compressor wheel (42).
摘要:
An engine (10, 100, 200, 34) assembly comprising an engine (36), at least one exhaust gas recirculation valve, (54) at least one throttle valve, and an actuator (12,112,212) operably connected to the EGR valve (56) and the throttle valve (54). The actuator (12, 112, 212) can be operably connected to any predetermined combination of a predetermined number of EGR valves (56) and a predetermined number of throttle valves (54). The actuator (12, 112, 212) can be a mechanical actuator, a pneumatic actuator, a hydraulic actuator, or an electrical actuator.
摘要:
The present invention is an exhaust gas recirculation system for a motor vehicle, having a turbocharger unit (18) which has a turbine (20) and a compressor (36), the compressor (36) having a compressor wheel (42) which rotates on an axis (66). There is also a dispersion apparatus (56) operably associated with a condensation separation apparatus (58). The condensation separation apparatus (58) separates moisture from exhaust gas flowing from the turbine (20), and the dispersion apparatus (56) reintroduces the moisture into the compressor (36) in proximity to the compressor wheel axis (66), preventing erosion of the compressor wheel (42).