dry sump engine
By using hydraulic sensors, acceleration sensors, or level sensors to measure the oil status in a dry sump engine, the oil output of the scavenging pump is controlled, solving the problem of excessive load on the scavenging pump and achieving effective load regulation and fault prevention.
CN122190889APending Publication Date: 2026-06-12TOYOTA JIDOSHA KK
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2025-11-25
- Publication Date
- 2026-06-12
Smart Images
Figure CN122190889A_ABST
Abstract
Provided is a dry-sump engine capable of suppressing application of an excessive load. The engine is provided with a scavenge pump, a hydraulic pressure sensor, and a control device. The scavenge pump rotates in conjunction with a crankshaft. The scavenge pump is capable of adjusting the amount of oil discharged per rotation. The hydraulic pressure sensor measures the hydraulic pressure of oil transferred from the scavenge pump to an oil tank. The control device controls the amount of oil discharged per rotation of the scavenge pump. The control device executes processing for reducing the amount of oil discharged per rotation of the scavenge pump, using as a start condition that the output value of the hydraulic pressure sensor is equal to or greater than a predetermined value.
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