Apparatus for controlling engine valve performance
    71.
    发明授权
    Apparatus for controlling engine valve performance 失效
    用于控制发动机气门性能的装置

    公开(公告)号:US5799631A

    公开(公告)日:1998-09-01

    申请号:US948338

    申请日:1997-10-09

    申请人: Hideo Nakamura

    发明人: Hideo Nakamura

    CPC分类号: F01L1/34406

    摘要: A variable valve timing mechanism (VVT) for adjusting the valve timing of an intake valve of an internal combustion engine. The mechanism is hydraulically driven by oil pressure. An oil control valve (OCV) is provided on a cylinder head of the engine for controlling oil flow from a pump. A drainage pan in the cylinder head receives oil drained from various mechanical components of the engine. A drain passage drains oil from the control valve to a drain well. The oil in the drainage pan is also led to the drainage well. A wall, or dam, is formed between the drainage pan and the drainage well for restricting the oil flow from the drainage pan to the drainage well. This prevents the drainage well from being flooded when the flow rate of oil into the drainage pan increases dramatically, which improves the performance of the VVT mechanism.

    摘要翻译: 一种用于调节内燃机的进气门的气门正时的可变气门正时机构(VVT)。 该机构由油压液压驱动。 在发动机的气缸盖上设置油控阀(OCV),用于控制来自泵的油流。 气缸盖中的排水盘接收从发动机的各种机械部件排出的油。 排水通道将油从控制阀排出到排水井。 排水盘中的油也被引导到排水井。 在排水盘和排水井之间形成一个墙壁或水坝,用于限制从排水盘到排水井的油流。 这样当油进入排水盘的流量急剧增加时,排水井就不会被淹没,从而提高了VVT机构的性能。

    Single-chip microcomputer
    74.
    发明授权
    Single-chip microcomputer 失效
    单片机

    公开(公告)号:US5428808A

    公开(公告)日:1995-06-27

    申请号:US217826

    申请日:1994-03-25

    IPC分类号: G06F9/24 G06F15/78 G06F9/06

    CPC分类号: G06F9/24 G06F15/7814

    摘要: A logic circuit built in a single-chip microprocessor is configured of electrically-programmable memory elements, and information is written into the memory elements from outside, whereby the logic circuit having any desired logical functions can be constructed. The writing operation of the memory elements can be executed in a short time, and a user can obtain the single-chip microprocessor having hardware of peculiar prescribed specifications, in a short period.

    摘要翻译: 内置在单芯片微处理器中的逻辑电路由电可编程存储器元件构成,并且信息从外部写入存储器元件,由此可以构建具有任何期望的逻辑功能的逻辑电路。 可以在短时间内执行存储元件的写入操作,并且用户可以在短时间内获得具有特定规定规格的硬件的单片微处理器。

    Microcomputer incorporating a nonvolatile semiconductor memory
    77.
    发明授权
    Microcomputer incorporating a nonvolatile semiconductor memory 失效
    包含非易失性半导体存储器的微机

    公开(公告)号:US4974208A

    公开(公告)日:1990-11-27

    申请号:US501542

    申请日:1990-03-30

    IPC分类号: G11C7/24 G11C16/22

    CPC分类号: G11C16/22 G11C7/24

    摘要: A microcomputer with a non-volatile memory has a plurality of nonvolatile data memory elements arranged in a matrix and a means for reading data from the memory elements in accordance with an address signal which specifies a position in the matrix. A protecting data memory element for storing at least one-bit protection data is disposed in the matrix. Whether a programming (writing), erasing or reading operation with respect to the data memory elements is to be allowed or inhibited is determined in accordance with the contents of the protecting data memory element which are read out in response to the address signal.