Title:
PLUNGER DEVICE AND INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2020/098180
Kind Code:
A1
Abstract:
A plunger device comprises a main body (1), a first plunger (2), a second plunger (3) and a driving assembly (4). The main body has a plunger hole, a a fluid inlet (5), a fluid outlet (6) and a lubricant inlet (7). Each of the first plunger and the second plunger is slidably engaged at the plunger hole. A fluid receptacle (8) is formed between a first end of the first plunger and an inner wall of the plunger hole. A lubricant receptacle (9) is bounded by a second end of the first plunger, a first end of the second plunger and the inner wall of the plunder hole. Also provided is an internal combustion engine. The plunger device and the internal combustion engine can reduce leakage and abrasion of parts upon pumping fuel.
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Inventors:
SUN HAIDONG (CN)
GUO YONGQING (CN)
XIANG GUIRONG (CN)
GUO YONGQING (CN)
XIANG GUIRONG (CN)
Application Number:
PCT/CN2019/076981
Publication Date:
May 22, 2020
Filing Date:
March 05, 2019
Export Citation:
Assignee:
SHANGHAI OLAHMOTORS CO LTD (CN)
International Classes:
F02M59/02; F02M59/10
Foreign References:
| CN109209713A | 2019-01-15 | |||
| CN103443440A | 2013-12-11 | |||
| CN105587452A | 2016-05-18 | |||
| CN108533430A | 2018-09-14 | |||
| CN104251203A | 2014-12-31 | |||
| CN106523228A | 2017-03-22 | |||
| US5749717A | 1998-05-12 | |||
| JPH1122594A | 1999-01-26 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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