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公开(公告)号：US5424494A
公开(公告)日：1995-06-13
申请号：US988578
申请日：1992-12-10
CPC分类号： F02M35/1227 , F02M35/1261 , F02M35/10321 , F02M35/10347
摘要： Noise is attenuated by a resonator having an inlet pipe leading to an expansion chamber and an outlet pipe leading from the expansion chamber. The two pipes are not aligned with each other at the expansion chamber. The portions of the two pipes proximate the expansion chamber contain respective venturis. The expansion chamber also functions as a Helmholtz resonator by providing the resonator with one or more apertures between the outlet pipe and the expansion chamber.
摘要翻译： 噪声被具有通向膨胀室的入口管和从膨胀室引出的出口管的谐振器衰减。 两个管道在膨胀室处不对齐。 靠近膨胀室的两个管道的部分包含相应的通风口。 膨胀室还用作亥姆霍兹共振器，通过在出口管和膨胀室之间提供谐振器一个或多个孔。
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公开(公告)号：US5377629A
公开(公告)日：1995-01-03
申请号：US139370
申请日：1993-10-20
CPC分类号： F02B27/0263 , F02B27/008 , F02B27/021 , F02B27/0247 , Y02T10/146
摘要： The effective area of a Helmholtz resonator used to tune the manifold is varied in accordance with engine speed to improve the engine-torque speed curve. The organization and arrangement of air intake passage, plenum chamber, runners, and Helmholtz resonator is also advantageous.
摘要翻译： 用于调节歧管的亥姆霍兹共振器的有效面积根据发动机转速变化，以改善发动机转矩速度曲线。 进气通道，增压室，流道和亥姆霍兹共振器的组织和布置也是有利的。
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公开(公告)号：US5211139A
公开(公告)日：1993-05-18
申请号：US941994
申请日：1992-09-08
IPC分类号： F02B27/02 , F02B75/18 , F02M35/104
CPC分类号： F02B27/0263 , F02B27/0215 , F02B27/0273 , F02B2075/1816 , F02B27/0294 , F05C2225/08 , Y02T10/146
摘要： A shaft-door unit that is operable for selecting the effective lengths of runners leading from a plenum is assembled into the manifold by lengthwise insertion through an opening in an end wall of the plenum that is subsequently closed by a closure member. The shaft-door unit may include as part of the unit, a journal sleeve for journaling the shaft or a tray which incoproates the journal sleeve.
摘要翻译： 可操作用于选择从集气室引导的流道的有效长度的轴门单元通过纵向插入通过密封件的端壁中的开口而被组装到歧管中，随后由关闭构件封闭。 轴门单元可以包括作为该单元的一部分的轴颈套筒，用于使轴或托盘插入轴颈套筒。
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