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公开(公告)号：KR1020120125817A
公开(公告)日：2012-11-19
申请号：KR1020110043498
申请日：2011-05-09
Applicant: (주)테너지 , 대한소결금속 주식회사 , 현대자동차주식회사
Abstract: PURPOSE: A method for manufacturing a valve seat for a gas fuel car is provided to improve wear resistance by adding Fe-Cr or Fe-Mo to form double carbide or intermetallic compounds. CONSTITUTION: A method for manufacturing a valve seat for a gas fuel car comprises the steps of: molding a material which is mainly composed of Fe and includes C of 0.8-1.2wt.%, Ni of 1.0-3.0wt.%, Co of 7.0-10.0wt.%, Cr of 4.5-7.5wt.%, Mo of 8.0-11.0wt.%, Mn of 1.5-3.0wt.%, and Ca of 0.1-0.5wt.% at a pressure of 6-9ton/cm^2, sintering the molded body in a nitrogen atmosphere at a temperature of 1,130-1,160°C for 30-90 minutes, placing a copper infiltration material on the sintered body and implementing second sintering at a temperature of 1110-1130°C for 20-40 minutes, maintaining the infiltrated sintered body at a temperature of 880-930°C for 60 minutes and oil-cooling the sintered body, and heat-treating the cooled sintered body at 550°C for 120 minutes.
Abstract translation: 目的：提供一种用于制造气体燃料汽车的阀座的方法，通过添加Fe-Cr或Fe-Mo以形成双重碳化物或金属间化合物来改善耐磨性。 构成：一种用于制造气体燃料汽车的阀座的方法包括以下步骤：对主要由Fe组成的材料进行成型，其中C为0.8-1.2重量％，Ni为1.0-3.0重量％，Co为 7.0-10.0重量％，Cr为4.5-7.5重量％，Mo为8.0-11.0重量％，Mn为1.5-3.0重量％，Ca为0.1-0.5重量％，压力为6-9ton / cm 2，在氮气气氛中在1130-1160℃的温度下烧结成型体30-90分钟，将铜浸渗材料置于烧结体上，并在1110-1130℃的温度下进行第二次烧结 保持20-40分钟，将渗透的烧结体保持在880-930℃的温度下60分钟，并对烧结体进行油冷却，并将该冷却的烧结体在550℃下热处理120分钟。
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Patent Agency Ranking
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公开(公告)号：KR1019900005920B1
公开(公告)日：1990-08-16
申请号：KR1019870012442
申请日：1987-11-05
Applicant: 현대자동차주식회사
IPC: G05D9/12
Abstract: The levels of the oil in an oil consumption apparatus (20) and an auxiliary tank (30) drops/rises according to the consumption/supply the oil as much as the difference of two contact positions (a,b) which are turned on/off by floaters (43,43') inserted to guide pipes (41,41'). When the level drops to b point, a low contact (Ss) switches on and an output of a RS flip-flop (FF) becomes high state so that a transistor (Tr) is turned on to drive a relay (Ry) and solenoid valve (SV) for the oil to be supplied. When the level rises to a point, the solenoid valve is closed to shut down the oil supply.
Abstract translation: 油耗装置（20）和辅助箱（30）中的油的水平根据油的消耗/供给而下降/上升，两个接触位置（a，b）的差别开启/ 通过插入引导管（41,41'）的浮子（43,43'）关闭。 当电平降至b点时，低触点（Ss）导通，RS触发器（FF）的输出变为高电平状态，以使晶体管（Tr）导通以驱动继电器（Ry）和螺线管 阀门（SV）用于供油。 当电平上升到一点时，电磁阀关闭以关闭供油。
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公开(公告)号：KR1019950004728B1
公开(公告)日：1995-05-06
申请号：KR1019910005598
申请日：1991-04-08
Applicant: 현대자동차주식회사
IPC: F01M9/00
Abstract: An oil consumption tester for vehicle engine is provided for improving any default in oil flow system by measuring the exact oil consumption quantity from each member in the oil flow system. The tester includes a first lubrication system (9) and a second lubrication system (14). In the first lubrication system, forced lubrication oil from an oil pump (10) is regulated at a preset pressure by a pressure controller and flows on the bearing portion of the crank shaft and the connecting rod before returning back to an oil pan (2). In the second lubrication system, forced lubrication oil from the other oil pump (17) is regulated by a relief valve (18) and flows in a turbine flowmeter (1), a control valve (20), cam shafts of the cylinder head (4) and each valve stem.
Abstract translation: 提供车用发动机油耗测试仪，用于通过测量油流系统中每个构件的精确油耗量来改善油流系统的任何缺省值。 测试器包括第一润滑系统（9）和第二润滑系统（14）。 在第一润滑系统中，来自油泵（10）的强制润滑油通过压力控制器调节到预设压力，并在返回到油盘（2）之前流过曲轴和连杆的轴承部分， 。 在第二润滑系统中，来自另一个油泵（17）的强制润滑油由安全阀（18）调节，并在涡轮流量计（1），控制阀（20），气缸盖的凸轮轴 4）和每个阀杆。
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