System to detect slippage of a clutch for an internal combustion

Details System to detect slippage of a clutch for an internal combustion System to detect slippage of a clutch for an internal combustion

1982-02-22

1985-02-12

Swann, III, Glen R.

Communications: electrical

Selective

Having indication or alarm

340 53, 340681, G08B 2100, B60Q 100

Patent

active

044994508

ABSTRACT:
An electromagnetic clutch has a drive member secured to a crankshaft of an internal combustion engine, and a driven member adjacent to the drive member. The system comprises a circuit for detecting the difference between numbers of revolutions of the drive member and driven member, a comparator for producing an output when the difference is higher than a reference value, a timer operated by the output of the comparator, and a warning device such as a buzzer operated by the signal from the timer when a predetermined time elapses. Thus, when the clutch slips, the warning signal is generated. Further, a circuit for changing clutch engaging characteristics is provided to be operated by the output of the comparator for preventing the overheating of the clutch.

REFERENCES:
patent: 3636364 (1972-01-01), Stempler et al.
patent: 3803574 (1974-04-01), Logue
patent: 3877003 (1975-04-01), Kawashima et al.
patent: 4263578 (1981-04-01), Fukuhara et al.

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