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公开(公告)号：US20150345450A1
公开(公告)日：2015-12-03
申请号：US14292860
申请日：2014-05-31
Applicant: CUMMINS INC.
Inventor： Marian Trocki , Donald J. Benson , Tamas Rauznitz , Vijayagandeeban Subbaihannadurai , Deepak Sahini
IPC: F02M61/04
CPC classification number: F02M61/042 , F02M45/12 , F02M61/12 , F02M63/0056 , F02M2200/28 , F02M2200/306
Abstract: An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.
Abstract translation: 注射器具有喷射器主体，其包括限定内壁和纵向轴线的喷射器腔，喷射器孔和可滑动地设置在喷射器腔内的柱塞。 柱塞具有沿着柱塞纵向的不同位置处的外部部分和内部部分。 内部部分具有多个表面部分，其包括构造成与注射器腔体的内壁大致配合的引导部分，引导柱塞沿着纵向轴线方向可滑动地移动，并且基本上防止柱塞在注射器内侧向平移 腔。 所述多个表面部分还包括限制部分，所述限制部分构造成沿着所述内部部分的长度轴向地在所述内部部分的外表面和所述注射器腔体的内壁之间形成限制腔。
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公开(公告)号：US20220010870A1
公开(公告)日：2022-01-13
申请号：US17293599
申请日：2019-02-12
Applicant: Cummins Inc.
Inventor： Steven Valentin , Ross A. Phillips , Romaine O. Edwards , Eric A. Benham , Marian Trocki , Richard E. Duncan , Neil Jeffries , Karthik Sethuraman
Abstract: A tappet assembly (100) used in mechanical equipment includes a tappet body (108) having a cylindrical shape and including a lower carrier portion (152) and an upper shell portion (158) having a cavity (150) defined by an inner wall (160) of the upper shell portion (158) and a top surface (154) of the lower carrier portion (152). The lower carrier portion (152) and the upper shell portion (158) are integrally formed as a single-piece unit. A post (162) extends upwardly from the top surface (154) of the lower carrier portion (152) and is configured to reduce a peak contact pressure associated with the tappet body (108).
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公开(公告)号：US09822748B2
公开(公告)日：2017-11-21
申请号：US14292860
申请日：2014-05-31
Applicant: CUMMINS INC.
Inventor： Marian Trocki , Donald J. Benson , Tamas Rauznitz , Vijaygandeeban Subbaihaannadurai , Deepak Sahini
CPC classification number: F02M61/042 , F02M45/12 , F02M61/12 , F02M63/0056 , F02M2200/28 , F02M2200/306
Abstract: An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.
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公开(公告)号：US09802257B2
公开(公告)日：2017-10-31
申请号：US14645995
申请日：2015-03-12
Applicant: Cummins Inc.
Inventor： Marian Trocki , Sam Lawson
CPC classification number: B23B31/302 , B23B31/18 , B23B2231/34 , Y10T279/1045 , Y10T279/1095 , Y10T279/1291 , Y10T279/17231 , Y10T279/185 , Y10T279/29
Abstract: A chuck assembly comprising a mandrel portion including an extending member sized and shaped to hold a workpiece; and a piston including a bore receiving the extending member, the piston mounted for supported movement on and relative to the extending member, the piston moving between a first position and a second position, the first position providing for insertion and removal of the workpiece to and from the extending member, the second position causing gripping force to be applied to the workpiece in at least two locations that are spaced longitudinally along the workpiece to inhibit relative movement between the mandrel and the workpiece.
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