发明名称 |
Combustion monitoring system for multi-cylinder internal combustion engine |
摘要 |
To permit individual evaluation of the combustion processes in the respective cylinders (1a-d) of an internal combustion (IC) engine (2), individual optical pick-ups (3a-d; 4a-d) are coupled to the respective cylinders, the output signals either in optical or electrical form are conducted to separate pick-ups for individual evaluation or, alternatively, the output signals are combined and then again separated out by a steering circuit. Individual evaluation can be accomplished by locating light guide fibers from the sensors in a predetermined position with respect to opto-electrical transducers; by forming scanning windows, for example by a rotating disk (19, 20) rotating n in synchronism with the engine and permitting passage of light from the respective fibers of the light guides to respective pick-ups; or by combining the light outputs from the respective sensors (4) either optically by intermixing light guide fibers in a common cable (6'), or electrically in an equivalent OR-circuit (FIG. 8: RL) with subsequent correlation of the output signal with a specific cylinder by a scanning disk (FIG. 6: 20) with suitably placed openings (22a-d) therein, or an electrical time-multiplex steering circuit (FIG. 8: 30) operating in synchronism with rotation of the engine.
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申请公布号 |
US4425788(A) |
申请公布日期 |
1984.01.17 |
申请号 |
US19820344407 |
申请日期 |
1982.02.01 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
FRANKE, HORST;LINDER, ERNST;MOSER, WINFRIED;MULLER, KLAUS;RIEGER, FRANZ |
分类号 |
G01M15/04;F02B1/04;G01H9/00;G01L23/22;G01M15/10;H01T13/48;(IPC1-7):G01L23/22 |
主分类号 |
G01M15/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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