Hydraulic control device
The hydraulic control device addresses valve malfunctions by using a dual oil path system with a spool and filter to enhance or reduce oil flow, effectively capturing contaminants and enhancing reliability and durability.
JP2026046884APending Publication Date: 2026-03-13SUBARU CORP
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2026-03-13
Smart Images
Figure 2026046884000001_ABST
Abstract
To improve the reliability and durability of hydraulic control systems. [Solution] The hydraulic control device has an oil passage switching valve provided in the oil path, which includes an input oil passage and an output oil passage. The oil passage switching valve operates in an oil increase state and an oil decrease state. The oil passage switching valve comprises a housing having an input port connected to the input oil passage, an output port connected to the output oil passage, and a drain port connected to the lubrication oil passage, and a filter that moves integrally with the spool. The filter is positioned at the output port when the oil passage switching valve is in the oil decrease state, and at the input port when the oil passage switching valve is in the oil decrease state.
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Citation Information
Patent Citations
Pressure governing valve
JP1993306783A
Control valve
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Hydraulic control valve and valve timing control device for internal combustion engine
JP2017003041A