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    Method and apparatus for reducing exhaust emissions and improving fuel utilization in internal combustion engines
    1.
    发明授权
    Method and apparatus for reducing exhaust emissions and improving fuel utilization in internal combustion engines 失效
    减少排气排放的方法和装置，提高燃油在内燃机中的利用

    公开(公告)号：US3625189A

    公开(公告)日：1971-12-07

    申请号：US3625189D

    申请日：1970-02-02

    Applicant: PHILLIP S MYERS ,  OTTO A UYEHARA

    Inventor： MYERS PHILLIP S ,  UYEHARA OTTO A

    IPC: F02B17/00 ,  F02B47/08 ,  F02B75/02 ,  F02D13/02 ,  F02D21/08

    CPC classification number: F02D13/0215 ,  F02B17/00 ,  F02B47/08 ,  F02B2075/027 ,  F02D13/0257 ,  F02D13/0273 ,  F02D13/0276 ,  F02D21/08 ,  F02M26/01 ,  Y02T10/121 ,  Y02T10/18

    Abstract: Method and apparatus for providing a stratified charge of two constituents in the combustion chamber of an internal combustion engine when the engine is operated at less than full load to reduce all three undesirable exhaust emissions, i.e., hydrocarbons, carbon monoxide and oxides of nitrogen. One constituent of the stratified charge comprises exhaust gas, mixed with air if desired; and the other a fuel/air mixture, having exhaust gases mixed therewith if desired, to produce reduced quantities of oxides of nitrogen. The exhaust gas portion of the exhaust gas/air mixture provided in the combustion chamber at all partial engine loads is selected from that portion of the exhaust gases which was formed by the burning of the fuel/air mixture constituent of a previous stratified charge. At relatively heavy engine loads, when all of the exhaust gases formed by the burning of the fuel/air mixture constituent of a previous stratified charge cannot be recycled, a secondary selection is made to recycle either the bulk gases thereof (high in carbon monoxide) or the quench gases thereof (high in hydrocarbons) or all of one and as much of the other as possible. The relative amounts of the fuel/air mixture and exhaust gas/air mixture making up the stratified charge may be varied in response to accelerator position by auxiliary intake and exhaust timing valves which are actuated by variable timing control mechanism, with a maximum quantity of fuel/air mixture and a minimum quantity of exhaust gas/air mixture being introduced for full engine load, and vice versa for minimum load. During deceleration the fuel/air mixture intake can be completely cut off until engine idling speed is reached when, of course, a sufficient fuel/air mixture is again supplied to keep the engine running.

    Bedwetting detection device
    3.
    发明授权
    Bedwetting detection device 失效
    尿湿检测装置

    公开(公告)号：US4347503A

    公开(公告)日：1982-08-31

    申请号：US234825

    申请日：1981-02-17

    Applicant: Otto A. Uyehara

    Inventor： Otto A. Uyehara

    IPC: G08B21/20 ,  G08B21/00

    CPC classification number: G08B21/20

    Abstract: An improved bedwetting detection device is responsive to moisture in the bed of the user to create an alarm when bedwetting occurs. The device includes controlling circuitry connected to metallic conductors (12, 14) installed in the bed of the user. The circuitry periodically provides electrical pulses to the conductors (12, 14) so as to minimize the introduction of electrical impulses into the bed of the user. Furthermore, the pulse created by the circuitry is of a very low voltage so as to further minimize the amount of electrical energy introduced into the bed of the user.

    Abstract translation: 改进的尿床检测装置响应用户床中的湿气以在发生尿尿时产生报警。 该装置包括连接到安装在用户床上的金属导体（12,14）的控制电路。 电路周期性地向导体（12,14）提供电脉冲，以便最小化将电脉冲引入到用户的床中。 此外，由电路产生的脉冲具有非常低的电压，以便进一步最小化引入用户床的电能的量。

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