Title:
ENGINE BODY AND ENGINE
Document Type and Number:
WIPO Patent Application WO/2020/124471
Kind Code:
A1
Abstract:
An engine body of an engine, comprising a cylinder (1) and a crankcase (2), also comprising: a pre-separation cavity (3) provided on the engine body and surrounding the cylinder (1), a gas outlet end (5) of the pre-separation cavity (3) being in communication with an oil-gas separation apparatus; an air inlet channel (6), which is in communication with a gas inlet end (4) of the pre-separation cavity (3) and with a cavity of the crankcase (2); an oil-returning channel (7) in communication with the pre-separation cavity (3) and with the cavity of the crankcase (2), oil produced by separation flowing back into the crankcase (2) via the oil-returning channel (7). The engine body obviates the need for a pre-separation structure to be provided on the oil-gas separation apparatus, allows both the manufacturing costs for the oil-gas separation apparatus and the probability of failure to be reduced, at the same time, not only reduces the size of the oil-gas separation apparatus, but with pre-separation cavity (3) additionally provided on the engine body fully utilizing the existing space of the engine body, also reduces the overall size of the engine , thus increasing both the economic benefits and the work performance of the engine.
Inventors:
WANG YOUZHI (CN)
LV SHUN (CN)
REN ZHONGSHENG (CN)
WANG BAOJUN (CN)
HUO CUIYING (CN)
LV SHUN (CN)
REN ZHONGSHENG (CN)
WANG BAOJUN (CN)
HUO CUIYING (CN)
Application Number:
PCT/CN2018/122269
Publication Date:
June 25, 2020
Filing Date:
December 20, 2018
Export Citation:
Assignee:
WEICHAI POWER CO LTD (CN)
International Classes:
F01M13/04
Foreign References:
| CN108678835A | 2018-10-19 | |||
| CN201687550U | 2010-12-29 | |||
| CN207315530U | 2018-05-04 | |||
| CN201474751U | 2010-05-19 | |||
| CN202055891U | 2011-11-30 | |||
| JP2017125470A | 2017-07-20 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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