公开(公告)号：US20200217225A1

公开(公告)日：2020-07-09

申请号：US16647393

申请日：2018-09-05

Applicant: ABB Turbo Systems AG

Inventor： Stephan SENN ,  Christoph MATHEY

IPC: F01D25/30

Abstract: The invention relates to an exhaust gas turbine, comprising a turbine wheel (7) with a multiplicity of moving blades (8) and an exhaust-gas outlet duct (15), which is arranged downstream of the moving blades of the turbine wheel. The exhaust-gas outlet duct (15) is delimited radially on the outside by an axial turbine diffuser (1) and radially on the inside, at least partially, by a spinner (2). The axial turbine diffuser (1) is formed by a number N>1 of successive conical diffuser segments. An axial diffuser opening angle A between successive diffuser segments is A>1.0°. A ratio L/H between an axial diffuser segment length L and an entry height H of the exhaust-gas outlet duct (15) is L/H>0.01. A ratio H/S between the entry height H of the exhaust-gas outlet duct and a maximum radius S of the spinner (2) is H/S>1.0. The spinner (2) is formed by a number P>1 of successive conical spinner segments. An axial spinner opening angle B between successive spinner segments is B>1.0°. A ratio M/H between an axial spinner segment length M and the entry height H of the exhaust-gas outlet duct (15) is M/H>0.01.

公开(公告)号：US20140301827A1

公开(公告)日：2014-10-09

申请号：US14248774

申请日：2014-04-09

Applicant: ABB TURBO SYSTEMS AG

Inventor： Christoph MATHEY ,  Joel Schlienger ,  Olaf Baudisch ,  Patrick Aberle

IPC: F04D29/42 ,  F02B37/013 ,  F02B37/02

CPC classification number: F04D29/4293 ,  F01D9/026 ,  F01D25/26 ,  F02B37/013 ,  F02B37/02 ,  Y02T10/144 ,  Y02T10/16

Abstract: Exemplary embodiments of the present disclosure are directed to a 2-stage supercharging unit having a housing unit which integrates within it a high-pressure charger and a low-pressure charger. The rotor axes of the two chargers are vertical with respect to the housing unit, which can be screwed directly via the housing base to the side of an internal combustion engine. As a result, increased flexibility is made possible with regard to the connection of the supercharging unit to the cooler and to the internal combustion engine, whereby the structural volume of the supercharging assembly can be additionally reduced.

Abstract translation: 本公开的示例性实施例涉及一种具有壳体单元的2级增压单元，其在其内集成有高压充电器和低压充电器。 两个充电器的转子轴线相对于壳体单元是垂直的，该壳体单元可以通过壳体基座直接拧到内燃机的侧面。 因此，增压装置与冷却器和内燃机的连接方面的灵活性增加，从而可以进一步减小增压组件的结构体积。

公开(公告)号：US20200277879A1

公开(公告)日：2020-09-03

申请号：US16756384

申请日：2018-10-17

Applicant: ABB Turbo Systems AG

Inventor： Stephan SENN ,  Christoph MATHEY

IPC: F01D25/30 ,  F02B37/18

Abstract: The invention relates to an exhaust gas turbine, comprising a turbine rotor (12) having a plurality of turbine rotor blades (2) with a turbine rotor blade height H. The exhaust gas turbine further comprises a diffuser arrangement (20) having a transverse diffuser (1) and an exhaust gas collection chamber (9). The transverse diffuser (1) is arranged downstream of the turbine rotor blades (2). The transverse diffuser (1) has a curved diffuser channel (13) which opens into the exhaust gas collection chamber (9) at a diffuser channel outlet (17). A M/H ratio between an axial extension M of the exhaust gas collection chamber (9) and the turbine rotor blade height H has a value of 1.0≤M/H≤4.6 and a P/H ratio between a radial extension P of the diffuser arrangement (20) and the turbine rotor blade height H has a value of 2.7≤P/H≤4.9. A D/H ratio between a radial expansion D of the diffuser channel section (13) and the turbine rotor blade height H has a value of 2.5≤D/H≤3.0 and a R/H ratio between a turbine hub radius R and the turbine rotor blade height H has a value of 1.1≤R/H≤1.5.

公开(公告)号：US20130319376A1

公开(公告)日：2013-12-05

申请号：US13910247

申请日：2013-06-05

Applicant: ABB Turbo Systems AG

Inventor： Christoph MATHEY ,  Paolo TREMULI

IPC: F02D41/40

CPC classification number: F02D41/402 ,  F02D41/3047 ,  F02D41/3094 ,  Y02T10/128 ,  Y02T10/142 ,  Y02T10/44

Abstract: In a fuel injection system and method for a diesel engine with compression induced ignition, NOx emissions are reduced by providing a supplemental fuel injection from a supplemental injection nozzle, in addition to the primary fuel injection through a primary injection nozzle. The supplemental injection nozzle injects a supplemental quantity of fuel onto a vaporization surface such as an exhaust valve, a flame ring area, or a top surface of the piston, in the combustion chamber, whereupon the supplemental fuel vaporizes and forms a lean air/fuel mixture. Thereafter, the primary injection nozzle injects the main fuel charge into the combustion chamber, to produce a rich air/fuel combustion mixture, which is then ignited and combusts.

Abstract translation: 在具有压缩诱发点火的柴油发动机的燃料喷射系统和方法中，除了通过主喷射喷嘴的主要燃料喷射之外，通过从辅助喷射喷嘴提供辅助燃料喷射来减少NOx排放。 补充注射喷嘴在燃烧室中将补充的燃料喷射到诸如排气阀，火焰环区域或活塞顶表面的汽化表面上，由此补充燃料蒸发并形成稀薄空气/燃料 混合物。 此后，主喷射喷嘴将主燃料喷射器喷射到燃烧室中，以产生浓空气/燃料燃烧混合物，然后被点燃并燃烧。