-
Patent Agency Ranking
公开(公告)号：US20170122248A1
公开(公告)日：2017-05-04
申请号：US14928870
申请日：2015-10-30
Applicant: Federal-Mogul Corporation
Inventor： Miguel Azevedo , Gregory Salenbien , Matthew Belford
CPC classification number: F02F3/0015 , F16J9/062 , F16J9/12 , F16J9/206
Abstract: A piston for an internal combustion engine having an improved oil control ring is provided. The piston has a piston body providing an upper combustion surface and an annular outer wall depending therefrom. A ring belt region including a plurality of ring grooves is formed in the annular outer wall. A first compression ring is disposed in one of the ring grooves and the oil control ring is disposed in another of the ring grooves. The oil control ring has generally parallel, planar upper and lower surfaces, with the upper and lower surfaces having an annular groove recessed therein. A through opening can be formed to bring the annular grooves into fluid communication with one another. The annular grooves collect oil scraped from a cylinder wall and return oil to the crank sump and reduce the contact area between the oil control ring and the wall of the ring groove.
-
公开(公告)号：US10125719B2
公开(公告)日：2018-11-13
申请号：US14928870
申请日：2015-10-30
Applicant: Federal-Mogul Corporation
Inventor： Miguel Azevedo , Gregory Salenbien , Matthew Belford
Abstract: A piston for an internal combustion engine having an improved oil control ring is provided. The piston has a piston body providing an upper combustion surface and an annular outer wall depending therefrom. A ring belt region including a plurality of ring grooves is formed in the annular outer wall. A first compression ring is disposed in one of the ring grooves and the oil control ring is disposed in another of the ring grooves. The oil control ring has generally parallel, planar upper and lower surfaces, with the upper and lower surfaces having an annular groove recessed therein. A through opening can be formed to bring the annular grooves into fluid communication with one another. The annular grooves collect oil scraped from a cylinder wall and return oil to the crank sump and reduce the contact area between the oil control ring and the wall of the ring groove.
-
公开(公告)号：US09261190B2
公开(公告)日：2016-02-16
申请号：US13827255
申请日：2013-03-14
Applicant: Federal-Mogul Corporation
Inventor： Gregory Salenbien , Miguel Azevedo , Matthew Belford
CPC classification number: F16J9/02 , B23P15/06 , B23P15/065 , F16J9/14 , Y10T29/49284
Abstract: The invention provides a low tension piston ring having a finished outer diameter and negligible tangential tension. The method includes the steps of machining a stock bar to an initial outer diameter slightly greater than the finished outer diameter of the piston ring, finishing the initial outer diameter of the stock bar to a rounded profile having a nominal diameter equal to the finished outer diameter, and machining the stock bar to the preferred cross-section. Dykes-type piston rings can have keystone or semi-keystone shaped cross-sections. The method continues by detaching the piston ring from the stock bar using a parting tool in response to completing all tension inducing operations including the steps recited above. The method continues with the steps of lapping the piston ring to a final longitudinal thickness and cutting the piston ring longitudinally to form a final gap.
Abstract translation: 本发明提供了具有最终外径和可忽略的切向张力的低拉力活塞环。 该方法包括以下步骤：将坯料坯加工到初始外径略大于活塞环的最终外径，将坯条的初始外径完成为具有等于最终外径的公称直径的圆形轮廓 ，并将坯料加工到优选的横截面。 Dykes型活塞环可以具有梯形或半梯形截面。 响应于完成包括上述步骤的所有张力诱导操作，使用分型工具将活塞环从坯料棒分离出来。 该方法继续以将活塞环研磨至最终纵向厚度并纵向切割活塞环以形成最终间隙的步骤。
-
公开(公告)号：US09494233B2
公开(公告)日：2016-11-15
申请号：US15002753
申请日：2016-01-21
Applicant: FEDERAL-MOGUL CORPORATION
Inventor： Gregory Salenbien , Miguel Azevedo , Matthew Belford
CPC classification number: F16J9/02 , B23P15/06 , B23P15/065 , F16J9/14 , Y10T29/49284
Abstract: The invention provides a low tension piston ring having a finished outer diameter and negligible tangential tension. The method includes the steps of machining a stock bar to an initial outer diameter slightly greater than the finished outer diameter of the piston ring, finishing the initial outer diameter of the stock bar to a rounded profile having a nominal diameter equal to the finished outer diameter, and machining the stock bar to the preferred cross-section. Dykes-type piston rings can have keystone or semi-keystone shaped cross-sections. The method continues by detaching the piston ring from the stock bar using a parting tool in response to completing all tension inducing operations including the steps recited above. The method continues with the steps of lapping the piston ring to a final longitudinal thickness and cutting the piston ring longitudinally to form a final gap.
-
公开(公告)号：US20140265148A1
公开(公告)日：2014-09-18
申请号：US13827255
申请日：2013-03-14
Applicant: FEDERAL-MOGUL CORPORATION
Inventor： Gregory Salenbien , Miguel Azevedo , Matthew Belford
CPC classification number: F16J9/02 , B23P15/06 , B23P15/065 , F16J9/14 , Y10T29/49284
Abstract: The invention provides a low tension piston ring having a finished outer diameter and negligible tangential tension. The method includes the steps of machining a stock bar to an initial outer diameter slightly greater than the finished outer diameter of the piston ring, finishing the initial outer diameter of the stock bar to a rounded profile having a nominal diameter equal to the finished outer diameter, and machining the stock bar to the preferred cross-section. Dykes-type piston rings can have keystone or semi-keystone shaped cross-sections. The method continues by detaching the piston ring from the stock bar using a parting tool in response to completing all tension inducing operations including the steps recited above. The method continues with the steps of lapping the piston ring to a final longitudinal thickness and cutting the piston ring longitudinally to form a final gap.
Abstract translation: 本发明提供了具有最终外径和可忽略切向张力的低拉力活塞环。 该方法包括以下步骤：将坯料坯加工到初始外径略大于活塞环的最终外径，将坯条的初始外径完成为具有等于最终外径的公称直径的圆形轮廓 ，并将坯料加工到优选的横截面。 Dykes型活塞环可以具有梯形或半梯形截面。 响应于完成包括上述步骤的所有张力诱导操作，使用分型工具将活塞环从坯料棒分离出来。 该方法继续以将活塞环研磨至最终纵向厚度并纵向切割活塞环以形成最终间隙的步骤。
-
-
-
-
Search Results
5
records
(took 0.01 seconds)
