A scroll machinery stepped variable tooth high scroll slideway sealing structure
By designing a stepped variable-tooth high-scroll slide sealing structure for the scroll machinery, the leakage problem of the scroll machinery within the π cycle is solved, complete sealing within the 2π cycle is achieved, and the thermal performance and efficiency of the scroll machinery are improved.
CN119778271BActive Publication Date: 2025-10-17XI AN JIAOTONG UNIV
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Patent Information
- Application Number
- CN202411969102.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2044-12-30
AI Technical Summary
Technical Problem
The existing stepped variable tooth high vortex machine cannot fully engage within the π cycle, resulting in leakage, affecting the thermal performance and efficiency of the compressor.
Method used
The scroll machinery's stepped variable-tooth high-scroll slideway sealing structure is designed, including a tooth top sealing structure and a tooth root slideway structure. By precisely controlling the profile and the width of the sealing structure, it is ensured that the moving and stationary scrolls engage within a π cycle in the non-meshing area, forming a fully enclosed seal.
Benefits of technology
The scroll machine is completely sealed within a 2π cycle, preventing leakage and improving the thermal performance and efficiency of the scroll machine.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a stepped variable tooth height scroll slide sealing structure of a scroll machine, which comprises a tooth top sealing structure and a tooth root slide structure, the profile of the tooth top sealing structure is composed of a head circular arc, a distal curve, a proximal curve and a tail curve, and the profile of the tooth root slide structure is composed of an upper stop curve, a lower stop curve, an inner curve and an outer curve; the profile of the tooth top sealing structure is controlled by a sealing structure width, and the minimum wall thickness requirement is met; the tooth top sealing groove is determined by the profile of the tooth top sealing structure and extension lines EM and FN of the profile; the upper and lower stop points of the profile of the tooth root slide structure are controlled by the profile of a scroll body, a wall thickness and a sealing structure width, the inner and outer curves are controlled by the distance between line segments E'M and F'N and point O0 and the sealing structure width, and points E' and F' form a tooth top small circular arc stepped curve E'F'; O0 is the center of the head circular arc of the tooth top sealing structure and also the center of the tooth top circular arc stepped curve. The application can realize the meshing sealing of large and small circular arcs in an arbitrary angle period.
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