Title:
ブローバイガス還流装置
Document Type and Number:
Japanese Patent JP6782200
Kind Code:
B2
Abstract:
There is provided a blow-by gas return device whose structure is rationally devised so as to prevent also freezing of a blow-by gas while preventing resonance as a result of extensive studies made by inventors of the present invention. A blow-by gas return device includes: a gas path which is configured to introduce a blow-by gas generated in a crankcase lb into an intake system k through an inside of a head cover 3, a pressure control valve 18 and a blow-by pipe h; and an orifice 22 provided to the gas path, the orifice 22 mounted on a wall portion w of an intake manifold 14 on a cylinder head side. A passage 21 for a blow-by gas is formed in the wall portion w on the cylinder head side, and the orifice 22 is formed on a joint pipe 26 mounted on the passage 21 for the blow-by gas for communicably connecting the blow-by pipe h with the passage 21 for the blow-by gas.
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Inventors:
Hiroaki Isojima
Kentaro Shiraishi
Kentaro Shiraishi
Application Number:
JP2017127346A
Publication Date:
November 11, 2020
Filing Date:
June 29, 2017
Export Citation:
Assignee:
Kubota Corporation
International Classes:
F01M13/00; F02M35/10
Domestic Patent References:
| JP2008101472A | ||||
| JP2014020279A | ||||
| JP2003090206A | ||||
| JP62056705U | ||||
| JP1113117U |
Foreign References:
| US6234154 |
Attorney, Agent or Firm:
Shoji Suzue