ENGINE
To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion...
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| creator | Harada, Yuji Uchida, Kenji Nagatsu, Kazuhiro Ono, Ryohei |
| description | To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion chamber 6 includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber having through-holes. The specific ratio obtained by dividing the ratio ϕp/Vpc of a hole diameter ϕp of the through-holes to a volume Vpc of the sub-chamber by a compression ratio is greater than or equal to 0.26 mm/cm3 and less than or equal to 2.30 mm/cm3. |
| format | Patent |
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The combustion chamber 6 includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber having through-holes. The specific ratio obtained by dividing the ratio ϕp/Vpc of a hole diameter ϕp of the through-holes to a volume Vpc of the sub-chamber by a compression ratio is greater than or equal to 0.26 mm/cm3 and less than or equal to 2.30 mm/cm3.</description><language>eng</language><subject>BLASTING ; COMBUSTION ENGINES ; COMBUSTION ENGINES IN GENERAL ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INTERNAL-COMBUSTION PISTON ENGINES ; LIGHTING ; MECHANICAL ENGINEERING ; WEAPONS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230608&DB=EPODOC&CC=US&NR=2023175429A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230608&DB=EPODOC&CC=US&NR=2023175429A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Harada, Yuji</creatorcontrib><creatorcontrib>Uchida, Kenji</creatorcontrib><creatorcontrib>Nagatsu, Kazuhiro</creatorcontrib><creatorcontrib>Ono, Ryohei</creatorcontrib><title>ENGINE</title><description>To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. The combustion chamber 6 includes a sub-chamber and a main chamber separated from the sub-chamber by a pre-chamber having through-holes. The specific ratio obtained by dividing the ratio ϕp/Vpc of a hole diameter ϕp of the through-holes to a volume Vpc of the sub-chamber by a compression ratio is greater than or equal to 0.26 mm/cm3 and less than or equal to 2.30 mm/cm3.</description><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>COMBUSTION ENGINES IN GENERAL</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>INTERNAL-COMBUSTION PISTON ENGINES</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZGBz9XP39HPlYWBNS8wpTuWF0twMym6uIc4euqkF-fGpxQWJyal5qSXxocFGBkbGhuamJkaWjobGxKkCAFIlG50</recordid><startdate>20230608</startdate><enddate>20230608</enddate><creator>Harada, Yuji</creator><creator>Uchida, Kenji</creator><creator>Nagatsu, Kazuhiro</creator><creator>Ono, Ryohei</creator><scope>EVB</scope></search><sort><creationdate>20230608</creationdate><title>ENGINE</title><author>Harada, Yuji ; Uchida, Kenji ; Nagatsu, Kazuhiro ; Ono, Ryohei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2023175429A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2023</creationdate><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>COMBUSTION ENGINES IN GENERAL</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>INTERNAL-COMBUSTION PISTON ENGINES</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>Harada, Yuji</creatorcontrib><creatorcontrib>Uchida, Kenji</creatorcontrib><creatorcontrib>Nagatsu, Kazuhiro</creatorcontrib><creatorcontrib>Ono, Ryohei</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Harada, Yuji</au><au>Uchida, Kenji</au><au>Nagatsu, Kazuhiro</au><au>Ono, Ryohei</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ENGINE</title><date>2023-06-08</date><risdate>2023</risdate><abstract>To effectively suppress strong knock that occurs in the operating region of high load and high rotation in a specific engine having a pre-chamber in a combustion chamber, the engine includes a piston that defines a combustion chamber together with a cylinder block and a cylinder head. 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| language | eng |
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| subjects | BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING WEAPONS |
| title | ENGINE |
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