The Experts below are selected from a list of 75 Experts worldwide ranked by ideXlab platform
B Selcuk - One of the best experts on this subject based on the ideXlab platform.
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the dry wear profile of Cam Shaft
Journal of Materials Processing Technology, 2005Co-Authors: Rasim Ipek, B SelcukAbstract:Abstract In this study, the variation of the wear mechanism and the worn surface profile of the Cam Shaft were investigated under the dry wear conditions. The samples which were made of AISI 1040 were hardened by induction. The counter body material was AISI 1020 borided steel. The wear was determined as weight losses of the samples as a function of wear test duration and loads. The variation of CamShaft profile was captured by a level sensor during the wear. The profile variation was continuously monitored on the computer screen throughout the tests. It was found that the wear mechanisms of the Cam surface change along the contact surface. The maximum wear value was obtained just to Cam tip.
Xia Huaicheng - One of the best experts on this subject based on the ideXlab platform.
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double Cam Shaft variable stroke engine gas distribution switching mechanism
2018Co-Authors: Xia Huaicheng, Xu Tongtong, Liu Chong, Zhang Shaokun, Liu Qingyu, Qu Zijun, Chai XiaodongAbstract:A double-Cam-Shaft variable-stroke engine gas distribution switching mechanism is divided into two stages of transmission. As for first-stage transmission, power is transmitted from a crankShaft to aconvex-peak-free single Cam Shaft transmission gear through a chain so as to drive a convex-peak-free single Cam Shaft; as for second-stage transmission, the power is transmitted from the convex-peak-free single Cam Shaft to a gas inlet Cam Shaft and a gas exhaust Cam Shaft through an idle wheel; the gas inlet Cam Shaft drives a gas inlet valve through a gas inlet switchable tappet to make an action, the gas inlet valve returns through a gas inlet valve spring, and the gas inlet switchable tappet returns through a tappet returning spring; and the gas exhaust Cam Shaft drives a gas exhaust valve through a gas exhaust switchable tappet to make an action, the gas exhaust valve returns through a gas exhaust valve spring, and the gas exhaust switchable tappet returns through another tappet returning spring. Modification of an original engine is little, the two-stroke mode and the four-stroke mode can be mutually converted only by modifying the tappets and the Cam Shafts in the gas distribution mechanism; the switching mechanism is simple and compact in overall structure, stable and reliable in working and long in service life; and a switching power source does not need to be additionally arranged, so that the cost is lower.
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variable stroke engine hydraulic type air distribution switching mechanism
2014Co-Authors: Xia Huaicheng, Tian Jincheng, Du Danyang, Xing Hongxiang, Zhou Beibei, Gu Hao, An Zijun, Liang YueAbstract:A variable stroke engine air distribution switching mechanism is characterized in that a two-stroke mode air inlet Cam, a four-stroke mode air inlet Cam, a two-stroke mode air exhaust Cam and a four-stroke mode air exhaust Cam are arranged in the middle of a Cam Shaft and are integrally connected with the Cam Shaft. Rectangular external splines are arranged on the two sides of the Cams on the Cam Shaft, the lengths of the rectangular external splines on the two sides are equal, the Cam Shaft naked section ends outside the two external splines are respectively provided with an annular groove, sealing rings are arranged in the annular grooves, a left half Shaft and a right half Shaft arranged on the two sides of the Cam Shaft are tubular bodies which are coaxial with the Cam Shaft, rectangular internal splines corresponding to the external splines on the Cam Shaft and pore channels corresponding to Cam Shaft naked sections are arranged inside the left half Shaft and the right half Shaft, the diameter of each pore channel is larger than the diameter of an oil duct outside the pore channel, internal threads are arranged at the inner ends of the oil ducts, and Shaft sections are arranged outside the left half Shaft and the right half Shaft. According to the variable stroke engine air distribution switching mechanism, two stroke modes are integrated in one engine, so that the structure is compact, an engine cylinder body is not greatly changed, switching is achieved by depending on hydraulic oil, switching is more stable, and meanwhile the overall performance of the engine can be further improved.
Haris Junuzovic - One of the best experts on this subject based on the ideXlab platform.
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Cam or bearing ring for Cam Shaft in internal combustion engine has diamond like carbon layer at bearing ring surface where layer is formed by physical vapor deposition method or plasma assisted chemical vapor deposition method
2011Co-Authors: Falk Schneider, Michael Kreisig, Haris JunuzovicAbstract:The ring has a diamond like carbon layer at a bearing ring surface, where the diamond like carbon layer is formed by physical vapor deposition method or plasma assisted chemical vapor deposition method. An independent claim is also included for a method for coating a Cam or a bearing ring.
Rasim Ipek - One of the best experts on this subject based on the ideXlab platform.
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the dry wear profile of Cam Shaft
Journal of Materials Processing Technology, 2005Co-Authors: Rasim Ipek, B SelcukAbstract:Abstract In this study, the variation of the wear mechanism and the worn surface profile of the Cam Shaft were investigated under the dry wear conditions. The samples which were made of AISI 1040 were hardened by induction. The counter body material was AISI 1020 borided steel. The wear was determined as weight losses of the samples as a function of wear test duration and loads. The variation of CamShaft profile was captured by a level sensor during the wear. The profile variation was continuously monitored on the computer screen throughout the tests. It was found that the wear mechanisms of the Cam surface change along the contact surface. The maximum wear value was obtained just to Cam tip.
Kilyoung Ahn - One of the best experts on this subject based on the ideXlab platform.
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automatic discharging apparatus for closing spring in air circuit breaker and air circuit breaker having the same
2008Co-Authors: Sangchul Lee, Kihwan Kim, Hongik Yang, Kilyoung AhnAbstract:Provided are an air circuit breaker capable of allowing a closing spring to be automatically discharged at a pulled-out position in a pull-out type air circuit breaker and an automatic discharging apparatus for the closing spring in the air circuit breaker, the automatic discharging apparatus for the closing spring comprising a Cam Shaft rotation preventing unit installed on a Cam Shaft allowing the closing spring to be charged or discharged and configured to restrict the rotation of the Cam Shaft by an elastic restoring force of the closing spring, and a unit for releasing the Cam Shaft rotation preventing unit connected to the Cam Shaft rotation preventing unit and configured to allow the Cam Shaft to be rotated by the elastic restoring force of the closing spring according to positions where a main body of the air circuit breaker is pulled out of a cradle.
