公开(公告)号：WO2004033888A2

公开(公告)日：2004-04-22

申请号：PCT/US2003/031543

申请日：2003-10-03

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： VERSCHOOR, Martin, L.

IPC: F02M25/07

CPC classification number: F01N13/0093 ,  F01N3/2006 ,  F01N3/2053 ,  F01N13/009 ,  F01N2240/26 ,  F02B29/0406 ,  F02B37/18 ,  F02M26/09 ,  F02M26/23 ,  F02M26/37 ,  Y02T10/144 ,  Y02T10/26

Abstract: Cylinders of an internal combustion engine are provided with an exhaust port that is opened when the piston approaches bottom dead center. Exhaust in the cylinder at the end of the power stroke flows to an EGR tank for containment and cooling. During the intake stroke as the piston approaches bottom dead center, the exhaust port is reopened allowing gas from the EGR tank to flow into the cylinder as a portion of the charge prior to compression. Alternatively, the exhaust port on a first cylinder is connected to the exhaust port on a second cylinder to allow exhaust gas from the power stroke on the first cylinder to flow into the intake stroke on the second cylinder. Pulsed turbocharger systems comprise an internal combustion engine comprising a piston cylinder and a piston slidably disposed within the cylinder. The cylinder includes an exhaust gas port that is disposed through a wall section of the cylinder. The exhaust gas port is positioned near a bottom portion of the cylinder such that: (1) an opening of the port is exposed when the piston is at the bottom of its stroke within the cylinder; and (2) an opening of the port is covered when the piston is moved towards the top of its stroke. A turbocharger that is connected to the engine and comprises a turbine wheel that is in exhaust gas flow communication with the exhaust gas port. Pulsed exhaust gas exits the piston cylinder through the exhaust port, when the piston is near a bottom portion of its work stroke. This pulsed exhaust gas is directed to the turbine wheel to cause the turbocharger to produce boost air for directing to the engine.

Abstract translation: 内燃机的气缸设有当活塞接近下止点时打开的排气口。 动力冲程结束时缸体内的排气流向EGR容器，用于容纳和冷却。 在进气冲程中，当活塞接近下止点时，排气口重新打开，允许来自EGR油箱的气体在压缩之前作为充气的一部分流入气缸。 可选地，第一气缸上的排气口连接到第二气缸上的排气口，以允许来自第一气缸上的动力冲程的排气流入第二气缸上的进气冲程。 脉冲式涡轮增压器系统包括内燃机，该内燃机包括活塞缸和可滑动地设置在缸内的活塞。 气缸包括穿过气缸壁部设置的排气口。 排气口位于气缸的底部附近，使得：（1）当气缸内的活塞处于其行程的底部时，端口的开口露出; （2）当活塞朝其行程的顶部移动时，端口的开口被覆盖。 涡轮增压器连接到发动机并且包括与排气口处于排气流连通的涡轮机叶轮。 当活塞靠近其工作冲程的底部时，脉冲式排气通过排气口离开活塞气缸。 这种脉冲废气被引导至涡轮机叶轮，以使涡轮增压器产生增压空气以引导至发动机。