ENGINE SYSTEM
In a compression-ignition engine having a two-stage cavity, the distribution ratio between fuel for an upper cavity and fuel for a lower cavity is maintained even when the operational state of the engine changes. A piston of the compression-ignition engine includes a lower cavity, an upper cavity, a...
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| creator | Matsubara, Takeshi Shirahashi, Naotoshi Uesugi, Yasunori |
| description | In a compression-ignition engine having a two-stage cavity, the distribution ratio between fuel for an upper cavity and fuel for a lower cavity is maintained even when the operational state of the engine changes. A piston of the compression-ignition engine includes a lower cavity, an upper cavity, and a lip portion between the lower cavity and the upper cavity. A controller causes a main injection and at least one pilot injection to be executed when the engine operates in a first state and a second state in which the speed is higher than the speed in the first state. The fuel spray is distributed to the lower cavity and the upper cavity. The controller increases an injection amount per pilot injection when the engine operates in the second state than when the engine operates in the first state. |
| format | Patent |
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A piston of the compression-ignition engine includes a lower cavity, an upper cavity, and a lip portion between the lower cavity and the upper cavity. A controller causes a main injection and at least one pilot injection to be executed when the engine operates in a first state and a second state in which the speed is higher than the speed in the first state. The fuel spray is distributed to the lower cavity and the upper cavity. The controller increases an injection amount per pilot injection when the engine operates in the second state than when the engine operates in the first state.</description><language>eng</language><subject>ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES ; BLASTING ; COMBUSTION ENGINES ; COMBUSTION ENGINES IN GENERAL ; CONTROLLING COMBUSTION ENGINES ; CYLINDERS ; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INTERNAL-COMBUSTION PISTON ENGINES ; LIGHTING ; MECHANICAL ENGINEERING ; PISTONS ; SEALINGS ; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2020</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=20200730&DB=EPODOC&CC=US&NR=2020240354A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200730&DB=EPODOC&CC=US&NR=2020240354A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Matsubara, Takeshi</creatorcontrib><creatorcontrib>Shirahashi, Naotoshi</creatorcontrib><creatorcontrib>Uesugi, Yasunori</creatorcontrib><title>ENGINE SYSTEM</title><description>In a compression-ignition engine having a two-stage cavity, the distribution ratio between fuel for an upper cavity and fuel for a lower cavity is maintained even when the operational state of the engine changes. A piston of the compression-ignition engine includes a lower cavity, an upper cavity, and a lip portion between the lower cavity and the upper cavity. A controller causes a main injection and at least one pilot injection to be executed when the engine operates in a first state and a second state in which the speed is higher than the speed in the first state. The fuel spray is distributed to the lower cavity and the upper cavity. The controller increases an injection amount per pilot injection when the engine operates in the second state than when the engine operates in the first state.</description><subject>ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES</subject><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>COMBUSTION ENGINES IN GENERAL</subject><subject>CONTROLLING COMBUSTION ENGINES</subject><subject>CYLINDERS</subject><subject>CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</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>PISTONS</subject><subject>SEALINGS</subject><subject>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOB19XP39HNVCI4MDnH15WFgTUvMKU7lhdLcDMpuriHOHrqpBfnxqcUFicmpeakl8aHBRgZAaGJgbGriaGhMnCoAIFodjw</recordid><startdate>20200730</startdate><enddate>20200730</enddate><creator>Matsubara, Takeshi</creator><creator>Shirahashi, Naotoshi</creator><creator>Uesugi, Yasunori</creator><scope>EVB</scope></search><sort><creationdate>20200730</creationdate><title>ENGINE SYSTEM</title><author>Matsubara, Takeshi ; Shirahashi, Naotoshi ; Uesugi, Yasunori</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2020240354A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2020</creationdate><topic>ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES</topic><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>COMBUSTION ENGINES IN GENERAL</topic><topic>CONTROLLING COMBUSTION ENGINES</topic><topic>CYLINDERS</topic><topic>CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</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>PISTONS</topic><topic>SEALINGS</topic><topic>SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>Matsubara, Takeshi</creatorcontrib><creatorcontrib>Shirahashi, Naotoshi</creatorcontrib><creatorcontrib>Uesugi, Yasunori</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Matsubara, Takeshi</au><au>Shirahashi, Naotoshi</au><au>Uesugi, Yasunori</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ENGINE SYSTEM</title><date>2020-07-30</date><risdate>2020</risdate><abstract>In a compression-ignition engine having a two-stage cavity, the distribution ratio between fuel for an upper cavity and fuel for a lower cavity is maintained even when the operational state of the engine changes. A piston of the compression-ignition engine includes a lower cavity, an upper cavity, and a lip portion between the lower cavity and the upper cavity. A controller causes a main injection and at least one pilot injection to be executed when the engine operates in a first state and a second state in which the speed is higher than the speed in the first state. The fuel spray is distributed to the lower cavity and the upper cavity. The controller increases an injection amount per pilot injection when the engine operates in the second state than when the engine operates in the first state.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES CYLINDERS CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF THERMAL INSULATION IN GENERAL WEAPONS |
| title | ENGINE SYSTEM |
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