Apparatus comprising an oil containment assembly, an oil containment vent valve, and an oil tank.
The oil-proof assembly addresses filter saturation issues by using an elastic member to expel excess oil, ensuring continuous performance and reducing maintenance costs.
JP7884872B2Active Publication Date: 2026-07-06HUIZHOU VOIR SCI & TECH CO LTD
Patent Information
- Application Number
- JP2025025772
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2024-10-08
- Filing Date
- 2025-02-20
- Publication Date
- 2026-07-06
- Estimated Expiration
- 2045-02-20
AI Technical Summary
Technical Problem
Conventional oil-proof ventilation systems require frequent maintenance due to filter element saturation, leading to reduced performance and shortened service life, necessitating costly and timely replacements.
Method used
An oil-proof assembly with a valve body, first and second filter members, and an elastic member that automatically expels excess oil from the first filter member when it becomes saturated, maintaining filtration and ventilation efficiency without frequent maintenance.
Benefits of technology
The system maintains filtration and ventilation performance by automatically expelling excess oil, reducing maintenance needs and extending the service life of the oil-proof assembly.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 0007884872000001 
Figure 0007884872000002 
Figure 0007884872000003
Abstract
To provide an oilproof assembly which enables reduction of maintenance costs and extends a useful life, and to provide an oilproof vent valve and a device with an oil tank.SOLUTION: An oilproof assembly includes: a valve body 1 which is provided with a cavity located in the center and penetrating through both ends of the valve body, and includes a first end and a second end, and in which an oil passage port allowing communication between the cavity and the outside is provided at the first end and the cavity communicates with an external ventilation passage at the second end; a first filter element 2 provided in the cavity at the first end; a stopper member 3 provided in the cavity at the second end and provided with a through hole for ventilation; and an elastic member 4 provided between the first filter element and the stopper member. The elastic member is configured to apply a thrust to the filter element after the first filter element absorbs oil to swell, so that at least part of the oil absorbed in the first filter element can be extruded by the thrust of the elastic member.SELECTED DRAWING: Figure 5
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Novel beam -pumping unit gearbox breather valve
CN206468784U
Lekage valve
JP1989193474A