Title:
内燃機関
Document Type and Number:
Japanese Patent JP7067494
Kind Code:
B2
Abstract:
To provide an internal combustion engine capable of improving combustion stability by reducing an engine oil content in blow-by gas flowing into an oil mist separator.SOLUTION: In an internal combustion engine, a blow-by gas inlet section of an oil mist separator which circulates the blow-by gas to an intake passage is communicated with a downstream side of a blow-by gas passage. A shielding member which can be rotated along with a crank shaft with the same faced opposite to the blow-by gas inlet section is installed at the downstream side of the blow-by gas passage. The shielding member has an opening section which penetrates the same in a direction of a rotary axis and opens at least partially the blow-by gas inlet section in synchronization with strokes of respective cylinders when pressure of the blow-by gas is not high. The shielding member is configured to place a shielding section covering the blow-by gas inlet section outside the opening section in a circumferential direction in synchronization with the strokes of respective cylinders when the pressure of the blow-by gas is high.SELECTED DRAWING: Figure 1
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Inventors:
Takashi Ijuin
Application Number:
JP2019007528A
Publication Date:
May 16, 2022
Filing Date:
January 21, 2019
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
F01M13/00; F01M13/04; F02B77/00
Domestic Patent References:
| JP874551A | ||||
| JP2006316625A | ||||
| JP2007231776A | ||||
| JP201277631A | ||||
| JP2012251451A | ||||
| JP201470535A |
Foreign References:
| US4353332 |
Attorney, Agent or Firm:
Okada International Patent Office