Air-oil conversion booster unit
Patent Information
- Authority / Receiving Office
- TW · TW
- Patent Type
- Utility models
- Current Assignee / Owner
- MIWE PRECISION WORK CO LTD
- Filing Date
- 2026-03-31
- Publication Date
- 2026-08-01
Smart Images

Figure TWG2TB001904504_001 
Figure TWG2TB001904504_002 
Figure TWG2TB001904504_003
Abstract
Claims
1. An air-oil conversion booster device, comprising a main unit housing, a booster assembly, a switching valve, a gas-liquid separator, and an oil storage tank, wherein: The main unit housing is located on the outside of the booster assembly, switching valve, gas-liquid separator and oil storage tank; The booster assembly includes a booster cylinder, a high-pressure hydraulic control assembly, and a pneumatic control valve. The high-pressure hydraulic control assembly is connected to the booster cylinder, and the pneumatic control valve is connected to the high-pressure hydraulic control assembly. The booster cylinder has an air accumulator and an oil accumulator. A piston is provided between the air accumulator and the oil accumulator. The piston is provided with a return spring. The high-pressure hydraulic control assembly has a cover, a ball, and a spring. The cover has a through hole, which is blocked by the ball pushed by the spring. The pneumatic control valve has a pressure relief piston and a pin. The pressure relief piston is used to control the pin to pass through the through hole and press down on the ball. The high-pressure hydraulic control assembly has an oil inlet and an oil outlet. The oil inlet and the oil outlet are not connected by the through hole blocked by the ball. The oil inlet and the oil outlet are connected to the oil accumulator and each is provided with a one-way check valve. The oil outlet is provided with a hydraulic quick connector for connecting to an external hydraulic cylinder. The switching valve is connected to the pneumatic control valve, the booster cylinder, and the oil storage tank. Through a switching action, an external air source is introduced to drive the pneumatic control valve, the booster cylinder, or the oil storage tank. The gas-liquid separator includes a body and at least one one-way valve. The body has a separation chamber, an oil storage chamber, and at least one recovery channel. A transverse channel connects the separation chamber and the oil storage chamber. The recovery channel communicates with the bottom of the oil storage chamber. The one-way valve is located within the recovery channel, allowing the oil storage chamber to be connected in one direction to an output end, which is connected to the oil inlet. The oil storage tank is used to store oil and is connected to the separation chamber for oil supply. Oil undergoes gas-liquid separation in the separation chamber and flows into the oil storage chamber through the transverse flow channel. The oil is then output through the output end via the recovery flow channel to the oil inlet channel and enters the oil storage chamber of the booster cylinder for pressurization. The switching valve drives the booster cylinder, causing the gas storage chamber to pressurize the piston due to increased air pressure, compressing the oil storage chamber and pressurizing the oil to the oil outlet channel, which is then output through the hydraulic quick connector, completing the pressurization and oil inlet action. The switching valve then switches and drives the pneumatic control valve, causing the pressure relief piston to control the pin to pass through the through hole and press down the ball, allowing the oil inlet channel and the oil outlet channel to communicate directly through the through hole, allowing the oil to pass through. The piston is then returned to its original position by a return spring, completing the oil return and pressure relief action.
2. The air-oil conversion booster device as described in claim 1, wherein, The switching valve is manually switched.
3. The air-oil conversion booster device as described in claim 1, wherein, The switching valve is automatically switched.
4. The air-oil conversion booster device as described in claim 1, wherein, The pneumatic control valve is equipped with an exhaust section to discharge the remaining air into the atmosphere.
5. The air-oil conversion booster device as described in claim 1, wherein, The pneumatic control valve is equipped with a silencer to reduce noise during pressure relief.
6. The air-oil conversion booster device as described in claim 1, wherein, The body of the gas-liquid separator is made of a transparent material.