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公开(公告)号：US11215092B2
公开(公告)日：2022-01-04
申请号：US16717428
申请日：2019-12-17
申请人： Caterpillar Inc.
摘要： An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple.
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公开(公告)号：US11885246B2
公开(公告)日：2024-01-30
申请号：US17503597
申请日：2021-10-18
申请人： Caterpillar Inc.
CPC分类号： F01L3/20 , F01L3/02 , B21K1/22 , F01L3/06 , F01L2301/00 , F01L2303/00 , F02F2001/245
摘要： An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple.
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公开(公告)号：US20220034243A1
公开(公告)日：2022-02-03
申请号：US17503597
申请日：2021-10-18
申请人： Caterpillar Inc.
摘要： An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple.
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公开(公告)号：US20210180480A1
公开(公告)日：2021-06-17
申请号：US16717428
申请日：2019-12-17
申请人： Caterpillar Inc.
摘要： An engine valve includes a stem, a head comprising an outer lip surface, a seating surface extending from the outer lip surface toward the stem, and a combustion surface extending from the outer lip surface on the opposite side of the head as compared to the seating surface. The combustion surface includes a first convex arcuate surface spaced away from the outer lip surface, at least partially forming a raised ring, and a first concave arcuate surface spaced away from the outer lip surface, at least partially forming a dimple.
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