Internally breathed exhaust brake valve
By setting an internal breathing structure on the back of the piston, internal breathing is achieved by automatically conducting and disconnecting the front and rear gases of the piston, the problems of high difficulty and high cost of breathing passage processing in the prior art are solved, and an efficient and low-cost internal breathing effect is achieved.
CN114017454BActive Publication Date: 2025-03-21HUBEI LIMEI BRAKING SYST CO LTD
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Patent Information
- Application Number
- CN202111366269.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-18
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2041-11-18
AI Technical Summary
Technical Problem
The existing built-in breathing exhaust brake valve has the problem that the breathing passage and the exhaust passage need to interact with each other, which makes it difficult to process and costly, and the passage is easily blocked and difficult to unblock or replace.
Method used
By setting an internal breathing structure on the rear side of the piston, internal breathing is achieved by automatically conducting and disconnecting the gas in front of the piston and behind the piston, avoiding the need to set up a breathing channel on the cylinder.
Benefits of technology
It achieves internal breathing in a strict sense, reduces processing difficulty and cost, simplifies the process of replacing the piston, and improves the reaction speed and sealing effect.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention discloses an internal breathing exhaust brake valve, which belongs to the technical field of exhaust brake valves. It includes a support plate, a butterfly valve and a cylinder, and the cylinder includes a cylinder body, a piston, an end cover, a piston rod, an air inlet, an exhaust port and a gas channel; an internal breathing structure is provided on the rear side of the piston, and the internal breathing structure includes a valve cavity arranged along the front-to-back direction on the rear side of the piston, a valve plate in the front part of the valve cavity and capable of moving forward and backward, a retaining ring on the inner wall of the valve cavity and located behind the valve plate, and a breathing channel between the rear part of the piston rod and the front side of the valve cavity, and the retaining ring can prevent the valve plate from moving backward and is provided with a connecting hole outside the valve plate; when the piston moves forward, if the pressure in front of the piston is less than the pressure behind the piston, the valve plate moves forward to close the rear end of the breathing channel until the pressure in front of the piston is greater than the pressure behind the piston, and the valve plate moves backward to allow the gas in front of the piston to flow into the piston. The internal breathing method is adopted to prevent the gas outside the cylinder from entering or discharging, and reduce the influence of dust and the like.
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