中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.015 seconds)

    Multiple rpm range tuned exhaust pipe and silencer for two-cycle engine
    1.
    发明授权
    Multiple rpm range tuned exhaust pipe and silencer for two-cycle engine 失效
    多循环轮式调节排气管和双循环发动机

    公开(公告)号：US3703937A

    公开(公告)日：1972-11-28

    申请号：US3703937D

    申请日：1971-05-21

    Applicant: WILLIAM L TENNEY

    Inventor： TENNEY WILLIAM L

    IPC: F01N1/16 ,  F01N13/08 ,  F02B27/06 ,  F02B75/02 ,  F01N1/08 ,  F01N1/20 ,  F01N3/00

    CPC classification number: F01N13/08 ,  F01N1/165 ,  F01N1/166 ,  F01N2590/04 ,  F02B27/06 ,  F02B2075/025 ,  Y02T10/146

    Abstract: An expansion chamber exhaust system operative to obtain high power output from two-cycle engines at more than one engine rpm range. The exhaust system includes automatic or manual means to change the effective range of engine rpm at which it is providing power increase. At least one valve member is provided, which is open in a low speed position, to permit substantially unrestricted passage of the exhaust gases and exhaust gas pressure waves past the valve member, and which closes at higher engine rpm to provide a pressure wave reflecting surface so positioned to reflect a positive pressure wave to arrive at the exhaust port of the two-cycle engine just before the port closes, at the desired higher rpm range of the engine. The exhaust systems can be made with a fixed positive wave reflecting surface downstream from the valve member, or they may open directly to atmosphere downstream from the valve member, and they may include a silencing muffler, is desired.

    Abstract translation: 膨胀室排气系统可操作以在多个发动机转速范围内从双循环发动机获得高功率输出。 排气系统包括自动或手动方式来改变其提供功率增加的发动机转速的有效范围。 提供至少一个在低速位置打开的阀构件，以允许废气和排气压力波基本上不受限制地通过阀构件，并且在更高的发动机转速下闭合以提供压力波反射表面 这样定位成在发动机的期望的更高的转速范围内，反映正压力波到达端口关闭之前的两冲程发动机的排气口。 排气系统可以由阀构件下游的固定的正波反射表面制成，或者它们可以直接从阀构件的下游开口到大气，并且它们可以包括消音消音器。

    Two-cycle engine resonance exhaust system
    2.
    发明授权
    Two-cycle engine resonance exhaust system 失效
    双循环发动机共振排气系统

    公开(公告)号：US3665712A

    公开(公告)日：1972-05-30

    申请号：US3665712D

    申请日：1970-02-09

    Applicant: WILLIAM L TENNEY

    Inventor： TENNEY WILLIAM L

    IPC: F01N1/08 ,  F01N13/08 ,  F02B25/00 ,  F02B27/04 ,  F02B75/02 ,  F01N5/00

    CPC classification number: F01N13/08 ,  F01N1/08 ,  F01N1/089 ,  F01N13/1888 ,  F01N2590/06 ,  F02B25/00 ,  F02B27/04 ,  F02B2075/025 ,  F02B2700/032 ,  Y02T10/146

    Abstract: Two-cycle engine exhaust systems including a resonance chamber which has at least one change of direction or bend in the resonance chamber and which is used in combination with powered tools and vehicles, such as chain saws and snowmobiles. Bending the resonance chamber saves space and keeps the exhaust resonance chamber out of the way of an operator. The further improvement of including an additional silencing section located within the crook of the bend in the resonance chamber in combination with two-cycle engines, is also disclosed.

    Abstract translation: 双循环发动机排气系统，包括共振室，其在共振室中具有至少一个方向或弯曲变化，并且与动力工具和车辆如链锯和雪地摩托车组合使用。 谐振腔的弯曲节省空间，并使排气共振室不受操作者的伤害。 还公开了包括位于共振室中的弯曲部的弯曲部内的另外的消音部分与双循环发动机的组合的进一步改进。

    Two cycle rear compression engine porting and transfer passage arrangement
    3.
    发明授权
    Two cycle rear compression engine porting and transfer passage arrangement 失效
    两个循环后压缩发动机分配和传递通行安排

    公开(公告)号：US3612014A

    公开(公告)日：1971-10-12

    申请号：US3612014D

    申请日：1969-08-22

    Applicant: WILLIAM L TENNEY

    Inventor： TENNEY WILLIAM L

    IPC: F02B25/00 ,  F02B75/02 ,  F02B33/04 ,  F02N17/02

    CPC classification number: F02B25/00 ,  F02B2075/025 ,  F02B2720/136

    Abstract: Two-cycle, crankcase compression engines, spark or compression ignition, carburetion or fuel injection types, with or without supercharging, having improved balancing of restrictions to flow of air or air-fuel fluids through the engine; having at least one crankcase inlet port(s) location in the cylinder wall on the same side of the cylinder as the exhaust port(s) and below the level of the exhaust ports, having a plurality of transfer ports, at least some of which are located on the opposite side of the cylinder with the flow therefrom directed toward the cylinder head plus other transfer port(s) located and shaped so as to direct flow in a plane more nearly at right angles to the cylinder axis and thence merging with flow from the oppositely located transfer port(s), along the cylinder wall in a direction away from the exhaust port(s); the height of the exhaust port(s) for optimum operational characteristics being more than approximately 35 percent of stroke; in a modified form, in addition to the inlet below the exhaust port, including another subsidiary inlet(s) into the crankcase located below the oppositely situated transfer port(s); in engine propelled vehicles such as snowmobiles, where operator position is such that the engine is between the legs and near his crotch, the improvement of having inlet (carburetor) and exhaust on the same side of engine and locating such slide away from crotch of operator, the side of the engine towards the operator being devoid of hot or vaporous engine protuberances. Improvements that, in some forms, the engine is combined with a resonant exhaust system; improvements in attachment of inlet and exhaust manifolds are provided to minimize and/or regulate heat transfer between exhaust manifold, cylinder and intake manifold, to minimize backflow of heat from the exhaust manifold to the cylinder and inlet manifold and to regulate temperature of various engine parts.

Patent Agency Ranking