Abstract: An apparatus is disclosed for a surface-acoustic-wave filter with a compensation layer having multiple densities. In an example aspect, the apparatus includes at least one surface-acoustic-wave filter with a piezoelectric layer, a substrate layer, and a compensation layer positioned between the piezoelectric layer and the substrate layer. The compensation layer includes a first portion having a first density and a second portion having a second density. The second density is greater than the first density. The first portion is positioned closer to the piezoelectric layer as compared to the second portion. The second portion is positioned closer to the substrate layer as compared to the first portion.

Abstract: A turbine housing for a turbocharger includes an inlet passage and an outlet passage connected to a turbine housing body. The outlet passage has a longitudinal axis and comprises a first section and a second section downstream of the first section. The first section includes a first inlet opening having a first cross-sectional area, a first outlet opening downstream of the first inlet opening, and a first length between the first inlet opening and the first outlet opening, wherein the first section has an opening angle between 0° and 10° relative to the longitudinal axis along the first length. The second section downstream of the first section includes a second inlet opening, a second outlet opening downstream of the second inlet opening, a second cross-sectional area at least 1.8 times greater than the first cross-sectional area, and a second length between the second inlet opening and the second outlet opening that is less than 50% of the first length.

Abstract: A turbine housing for a turbocharger includes an inlet passage and an outlet passage connected to a turbine housing body. The outlet passage has a longitudinal axis and comprises a first section and a second section downstream of the first section. The first section includes a first inlet opening having a first cross-sectional area, a first outlet opening downstream of the first inlet opening, and a first length between the first inlet opening and the first outlet opening, wherein the first section has an opening angle between 0° and 10° relative to the longitudinal axis along the first length. The second section downstream of the first section includes a second inlet opening, a second outlet opening downstream of the second inlet opening, a second cross-sectional area at least 1.8 times greater than the first cross-sectional area, and a second length between the second inlet opening and the second outlet opening that is less than 50% of the first length.

Abstract: A compressor system (1) for a motor vehicle, with a compressor (2) having a driven compressor wheel (3) for compressing intake air for an internal combustion engine (9) of the motor vehicle, an intake section (6) extending along a first axis (11) for guiding air to the compressor wheel (3), and an exhaust gas recirculation line (8) extending along a second axis (12) for recirculating exhaust gas from the internal combustion engine (9) into the intake section (6). The intake section (6) has a first diameter (10) in the area of the opening of the recirculation line (8). The recirculation line (8) opens eccentrically into the intake section (6).

Abstract: A compressor system (1) for a motor vehicle, with a compressor (2) having a driven compressor wheel (3) for compressing intake air for an internal combustion engine (9) of the motor vehicle, an intake section (6) extending along a first axis (11) for guiding air to the compressor wheel (3), and a recirculation line (8) extending along a second axis (12) for recirculating exhaust gas from the internal combustion engine (9) into the intake section (6). The intake section (6) has a first diameter (10) in the area of the opening of the recirculation line (8). The recirculation line (8) opens eccentrically into the intake section (6).

Abstract: The invention relates to a coating of glass with thermochromic vanadium dioxide. The coloration of the vanadium dioxide is shifted from bronze to neutral (colorless) by a doping with alkaline earth metals, for example Ca, Sr and Br. The thermochromic effect is maintained at the same time.

Abstract: The invention relates to a coating of glass with thermochromic vanadium dioxide. The colouration of the vanadium dioxide is shifted from bronze to neutral (colourless) by a doping with alkaline earth metals, for example Ca, Sr and Br. The thermochromic effect is maintained at the same time.