公开(公告)号：WO1996026357A1

公开(公告)日：1996-08-29

申请号：PCT/AU1996000077

申请日：1996-02-16

Applicant: ORBITAL ENGINE COMPANY (AUSTRALIA) PTY. LIMITED ,  BELL, Gregory, Bruce ,  MALSS, Steven, Reinhard

Inventor： ORBITAL ENGINE COMPANY (AUSTRALIA) PTY. LIMITED

IPC: F02D23/02

CPC classification number: F02D21/08 ,  F02B3/06 ,  F02B33/36 ,  F02B33/40 ,  F02B37/16 ,  F02B2075/025 ,  F02B2075/125 ,  F02B2275/14 ,  F02D9/02 ,  F02D41/0065 ,  F02D2400/04 ,  F02M26/02 ,  F02M26/03 ,  F02M26/47 ,  F02M26/60 ,  Y02T10/123 ,  Y02T10/144

Abstract: A blower scavenging arrangement for an internal combustion engine (5) including a blower (10) for supplying air to the engine (5), a bypass valve (15) for regulating a bypass airflow from the outlet side of the blower (10) to the inlet side thereof to thereby provide a variable rate of bypass airflow, and an ambient air valve (14) for regulating the flow rate of ambient air to the blower (10), wherein said regulation by said bypass valve (15) and said ambient air valve (14) thereby controls the pressure of the intake air supply to the blower (10), the bypass valve (15) and the ambient air valve (14) being independently controlled. These two valves together ensure that the airflow to the engine (5) can be controlled such that a suitable amount of air is delivered at any load point over the entire operating regime of the engine (5). Furthermore, the two valves together ensure that effective exhaust gas recirculation (EGR) from the engine exhaust system (6) back into the air intake system (11) can be achieved throughout the operating range of the engine (5) and particularly at idle and low load conditions.

Abstract translation: 一种用于内燃机（5）的鼓风机清扫装置，包括用于向发动机（5）供应空气的鼓风机（10），用于将从吹风机（10）的出口侧调节旁路气流的旁通阀（15） 从而提供旁路气流的可变速率，以及用于调节到鼓风机（10）的环境空气的流量的环境空气阀（14），其中所述旁通阀（15）和所述环境 空气阀（14）由此控制对鼓风机（10）的供气压力，旁通阀（15）和环境空气阀（14）的独立控制。 这两个阀一起确保了可以控制到发动机（5）的气流，使得在发动机（5）的整个操作状态下的任何负载点都能输送适量的空气。 此外，两个阀一起确保了在发动机（5）的整个运行范围内，特别是在空转和空转的情况下，可以实现从发动机排气系统（6）返回进气系统（11）的有效废气再循环（EGR） 低负载条件。