Title:
TRIANGULAR ROTOR PUMP
Document Type and Number:
WIPO Patent Application WO/2021/109759
Kind Code:
A1
Abstract:
A triangular rotor pump, comprising a housing, the housing comprising a side wall (100), and a first end cover (210) and a second end cover (220) respectively disposed at two ends of the side wall (100), and further comprising a triangular rotor (300) in the housing and an eccentric assembly (400) that drives the triangular rotor (300), the triangular rotor (300) comprising a rotor body (310) and a sealing member (320) disposed on the rotor body (310), the sealing member (320) being an elastic structural member, the rotor body (310) comprising three top ends (312) and side surfaces (311) respectively facing the first end cover (210) and the second end cover (220), the sealing member (320) comprising three first sealing portions (321) respectively disposed at the three top ends (312), each first sealing portion (321) abutting against the inner surface of the side wall (100) to form a radial sealing surface that blocks adjacent working cavities, the sealing member (320) further comprising two second sealing portions (322), two second sealing portions (322) being respectively disposed at two ends of the rotor body (310) in an axial direction, and the second sealing portions (322) respectively abutting against the first end cover (210) and the second end cover (220) to form an end surface sealing surface, and two ends of the first sealing portion (321) being respectively clearance-free fit with the two second sealing portions (322). Thus, radial sealing and end surface sealing are implemented.
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| JPS5848722 | [Title of the Invention] Trochoid structure form rotation piston machinery |
Inventors:
ZHAO FENGLI (CN)
ZHA XIAHONG (CN)
LI MINXING (CN)
ZHA XIAHONG (CN)
LI MINXING (CN)
Application Number:
PCT/CN2020/124450
Publication Date:
June 10, 2021
Filing Date:
October 28, 2020
Export Citation:
Assignee:
POSITEC POWER TOOLS SUZHOU CO LTD NON SMALL ENTITY (CN)
International Classes:
F04C2/22; F04C15/00
Foreign References:
| CN211549976U | 2020-09-22 | |||
| US3877852A | 1975-04-15 | |||
| DE3841937A1 | 1990-06-21 | |||
| CN101852123A | 2010-10-06 | |||
| CN101865021A | 2010-10-20 | |||
| US3860366A | 1975-01-14 | |||
| CN109944687A | 2019-06-28 | |||
| DE3707722A1 | 1988-09-29 | |||
| JPH09126158A | 1997-05-13 |
Attorney, Agent or Firm:
SUZHOU JINHE INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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