公开(公告)号：US20080229742A1

公开(公告)日：2008-09-25

申请号：US11689339

申请日：2007-03-21

Applicant: Philippe Renaud ,  Thomas Dubois ,  Hua Chen

Inventor： Philippe Renaud ,  Thomas Dubois ,  Hua Chen

IPC: F02G5/00 ,  F01D5/00

CPC classification number: F04D29/284 ,  F04D29/30 ,  F05D2240/303

Abstract: A turbocharger system having a compressor housing containing a rotating compressor wheel with a plurality of main blades that define an impeller passageway from an inducer to an exducer. Each main blade has a leading edge characterized by an extension forming a non-planar, conical inducer leading edge, and a trailing edge characterized by a reverse-clip-extension forming a non-cylindrical, conical exducer trailing edge.

Abstract translation: 一种涡轮增压器系统，其具有压缩机壳体，该压缩机壳体包含旋转的压缩机叶轮，所述旋转压缩机叶轮具有多个主叶片，所述多个主叶片限定了从诱导器到施放器的叶轮通道。 每个主叶片具有前缘，其特征在于延伸部形成非平面的圆锥形诱导器前缘，后缘的特征在于形成非圆柱形的锥形驱除器后缘的反夹延伸。

公开(公告)号：US20070271921A1

公开(公告)日：2007-11-29

申请号：US11440308

申请日：2006-05-24

Applicant: Hua Chen

Inventor： Hua Chen

IPC: F02B33/44

CPC classification number: F04D29/4213 ,  F04D29/441 ,  F04D29/685 ,  F05D2250/51 ,  Y10S415/914

Abstract: A turbocharger system having a compressor housing containing a rotating compressor wheel with a plurality of impellers that define an impeller passageway from an inducer to an exducer. The compressor housing includes an annular upstream housing-portion forming an upstream shroud-wall, and a downstream housing-portion forming a downstream shroud-wall. The a rib supports the upstream housing-portion with respect to the downstream housing-portion such that they are respectively disposed to form an annular bypass port into the impeller passageway between the upstream and downstream shroud-walls. The rib extends along a non-axial path within the bypass passageway.

Abstract translation: 一种具有压缩机壳体的涡轮增压器系统，该压缩机壳体包含具有多个叶轮的旋转压缩机叶轮，所述多个叶轮限定了从诱导器到施放器的叶轮通道。 压缩机壳体包括形成上游护罩壁的环形上游壳体部分和形成下游护罩壁的下游壳体部分。 肋骨相对于下游壳体部分支撑上游壳体部分，使得它们分别设置成在上游和下游护罩壁之间形成到叶轮通道中的环形旁路端口。 肋沿旁路通道内的非轴向路径延伸。

公开(公告)号：US20070217902A1

公开(公告)日：2007-09-20

申请号：US11696294

申请日：2007-04-04

Applicant: Borislav Sirakov ,  Hua Chen ,  Nicolas Deschatrettes ,  Junfei Yin ,  Gary Vrbas ,  Dennis Thoren

Inventor： Borislav Sirakov ,  Hua Chen ,  Nicolas Deschatrettes ,  Junfei Yin ,  Gary Vrbas ,  Dennis Thoren

IPC: F04D27/02

CPC classification number: F04D29/4213 ,  F04D29/685 ,  Y10S415/914

Abstract: A centrifugal compressor for compressing a fluid comprises a compressor wheel having a plurality of circumferentially spaced blades, and a compressor housing in which the compressor wheel is mounted. The compressor housing includes an inlet duct through which the fluid enters in an axial direction and is led by the inlet duct into the compressor wheel, and a wheel shroud located radially adjacent the tips of the blades. A bleed port is defined in the wheel shroud at a location intermediate the leading and trailing edges of the blades for bleeding off a bleed portion of the fluid being compressed by the compressor wheel. A converging injection nozzle is defined in the duct wall upstream of the leading edges of the blades for injecting the bleed portion of the fluid back into the main fluid flow stream approaching the compressor wheel.

Abstract translation: 用于压缩流体的离心式压缩机包括具有多个周向间隔开的叶片的压缩机叶轮和压缩机壳体，压缩机叶轮安装在该压缩机壳体中。 压缩机壳体包括入口管道，流体通过该入口管道沿着轴向方向进入并且被入口管道引导到压缩机叶轮中，以及轮辐护罩，其位于径向邻近叶片的尖端处。 在叶轮护罩中限定了在叶片的前缘和后缘之间的位置处的排出口，用于排出被压缩机叶轮压缩的流体的排出部分。 会聚注射喷嘴限定在叶片前缘上游的管道壁中，用于将流体的排放部分回流到靠近压缩机叶轮的主流体流中。

公开(公告)号：US20060275113A1

公开(公告)日：2006-12-07

申请号：US10552376

申请日：2002-08-13

Applicant: Hua Chen

Inventor： Hua Chen

IPC: F04D29/44

CPC classification number: F04D29/4206 ,  F04D29/162

Abstract: A compressor for a turbocharger comprising: a compressor wheel having compressor blades and being mounted for rotation on a shaft a shroud mounted adjacent the wheel and defining a gas flow path between the shroud and the blades from a compressor inlet to a diffuser outlet; wherein in cross-section the shroud has a surface in the flow path with a profile which includes a section with a smoothly curving surface with a smoothly curving surface and at least one relative discontinuity.

Abstract translation: 一种用于涡轮增压器的压缩机，包括：压缩机叶轮，其具有压缩机叶片并且安装成用于在轴上旋转安装在靠近所述轮的护罩上，并且在所述护罩和所述叶片之间限定从压缩机入口到扩散器出口的气体流动路径; 其中在横截面中，所述护罩具有所述流动路径中具有轮廓的表面，所述轮廓包括具有平滑弯曲表面的平坦弯曲表面的部分和至少一个相对不连续部。

公开(公告)号：US06915263B1

公开(公告)日：2005-07-05

申请号：US09422134

申请日：1999-10-20

Applicant: Hua Chen ,  Ikuo Tsukagoshi ,  Milan Mehta

Inventor： Hua Chen ,  Ikuo Tsukagoshi ,  Milan Mehta

IPC: G10L19/00 ,  H04B1/66

CPC classification number: G10L19/005 ,  H04B1/66

Abstract: A multimedia decoder unit having error concealment and fast muting capabilities. The audio decoder provides error concealment using a dynamic recovery delay that is based on the error rate of an input digital bitstream and also uses frame repeating. The decoder allows fast audio muting whereby audio can be muted within two audio frames of a mute signal that immediately freezes the video frame, e.g., a channel change. With respect to the dynamic recovery delay, a template of fixed length is used to inspect the last frames within the template. If error is found, then the error sum is used as an index into a table length which provides a dynamic template length. Error within the dynamic template length is computed and if larger than a tolerance, the current frame is muted. This allows the recovery delay to be adaptive and based on the error rate while still allowing mute merging. Muting the current frame can be achieved by repeating the previous frame but the delay data of the last block of the previous audio frame is added to the first block of the repeated audio frame to provide a smooth frame interface. In response to a mute command, the decoder zeros the audio output bitstream stream to provide zero frames at the audio output buffer (AOB). In addition, the decoder also directly zeros audio frames in the AOB that lie between its the read and write pointers to guarantee that only two frames of audio be played after the mute signal.

Abstract translation: 具有错误隐藏和快速静音功能的多媒体解码器单元。 音频解码器使用基于输入数字比特流的错误率的动态恢复延迟来提供错误隐藏，并且还使用帧重复。 解码器允许快速音频静音，由此音频可以在立即冻结视频帧（例如，频道改变）的静音信号的两个音频帧内静音。 对于动态恢复延迟，使用固定长度的模板来检查模板中的最后一帧。 如果发现错误，则使用错误和作为提供动态模板长度的表长度的索引。 计算动态模板长度内的错误，如果大于公差，当前帧将被静音。 这允许恢复延迟是自适应的，并且基于错误率，同时仍允许静音合并。 可以通过重复前一帧来实现当前帧的静音，但是先前音频帧的最后一个块的延迟数据被添加到重复音频帧的第一块以提供平滑的帧接口。 响应于静音命令，解码器使音频输出比特流流零，以在音频输出缓冲器（AOB）处提供零帧。 另外，解码器还直接将位于读写指针之间的AOB中的音频帧零点保证在静音信号之后仅播放两帧音频。