公开(公告)号：US4591663A

公开(公告)日：1986-05-27

申请号：US552729

申请日：1983-11-17

申请人： Thomas W. Sullivan

发明人： Thomas W. Sullivan

IPC分类号： H04M1/00

CPC分类号： H04M1/003

摘要： A servo-linearized opto-electronic analog interface for interconnecting a signal generating device to a communications circuit comprises a first opto-isolator arrangement for transmitting signals from the communications circuit to the signal generating device, and a second opto-isolator arrangement for transmitting signals from the signal generating device to the communications circuit, a transmitting diode of the second opto-isolator arrangement being connected in series with a transmitting diode of a further opto-isolator arrangement forming a feedback path providing servo-linearization of the signal transmitted by the signal generating device via the second opto-isolator arrangement to the communications circuit. A further feature of the invention comprises the provision of an additional opto-isolator arrangement acting as a switch for normally isolating the interface from the communications circuit, and responsive to a signal from the signal generating device, indicating that data is to be transmitted, for connecting the interface to the communications circuit.

摘要翻译： 用于将信号发生装置与通信电路互连的伺服线性化光电模拟接口包括用于将信号从通信电路传输到信号发生装置的第一光隔离器装置，以及用于从 所述信号发生装置连接到所述通信电路，所述第二光隔离器装置的发射二极管与另外的光隔离器装置的发射二极管串联连接，所述发射二极管形成反馈路径，所述反馈路径提供由所述信号产生发送的信号的伺服线性化 设备经由第二光隔离器布置到通信电路。 本发明的另一特征包括提供一个额外的光隔离器装置，其作为开关，用于将接口与通信电路正常隔离，并且响应来自信号发生装置的信号，指示要发送的数据，用于 将接口连接到通信电路。

公开(公告)号：US5159911A

公开(公告)日：1992-11-03

申请号：US718981

申请日：1991-06-21

申请人： John C. Williams ,  Kevin W. Westerson ,  George L. Muntean ,  Thomas W. Sullivan

发明人： John C. Williams ,  Kevin W. Westerson ,  George L. Muntean ,  Thomas W. Sullivan

IPC分类号： F02M55/00 ,  F02M57/02 ,  F02M59/38

CPC分类号： F02M57/021 ,  F02M55/00 ,  F02M59/38

摘要： A fuel leakage prevention system for preventing undesired leakage of fuel into the combustion chambers of an internal combustion engine equipped with a pressure/time, cam actuated unit fuel injection system. The system includes a main housing containing an evacuatable chamber adapted to be connected by a first fluid conduit to a source of sub-atmospheric pressure by a check valve and manual shut off valve. The evacuatable chamber is also adapted to be fluidically connected to a common rail supplying fuel to the injectors by a solenoid controlled valve which is open during engine shutdown and closed during engine operation whereby fuel is withdrawn from the injectors by the vacuum upon engine shutdown.

摘要翻译： 一种用于防止燃料进入配有压力/时间，凸轮致动单元燃料喷射系统的内燃机的燃烧室的不期望的泄漏的燃料泄漏防止系统。 该系统包括一个包含可排气室的主壳体，其适于通过止回阀和手动截止阀由第一流体导管连接到亚大气压源。 可抽空室还适于流体连接到共轨，通过螺线管控制的阀向喷射器供应燃料，该电磁阀在发动机关闭期间打开并且在发动机操作期间关闭，由此在发动机关闭时通过真空从喷射器中抽出燃料。