Lubrication system for two-cycle engine

Details Lubrication system for two-cycle engine Lubrication system for two-cycle engine

2006-12-19

2006-12-19

Solis, Erick R (Department: 3747)

Internal-combustion engines

Two-cycle

Rear compression

C123S1960CP

Reexamination Certificate

active

07150249

ABSTRACT:
An engine has a lubrication system that lubricates the engine with lubricant. The lubrication system incorporates a lubrication pump that periodically pressurizes the lubricant toward the engine. An engine speed sensor and a throttle valve position sensor are provided to sense an engine speed and a throttle valve position (i.e., engine load), respectively. A control device controls the lubrication pump. The control device determines a frequency of the periodic pressurization based upon signals from the sensors. The control device sets a pressurizing time of the lubrication pump to a period of time shorter than the maximum period of time that can be set for the lubrication pump at the determined frequency, when the signals from the sensors indicate that the engine speed is less than a preset engine speed and the engine load is less than a preset engine load.

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