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1. 发明专利

JPS56124620A EXHAUST GAS CONTROLLING ACTUATOR 失效
公开(公告)号：JPS56124620A
公开(公告)日：1981-09-30
申请号：JP2781280
申请日：1980-03-05
申请人： TOYOTA MOTOR CO LTD , TAIHO KOGYO CO LTD
发明人： SUMIYOSHI MASAHARU , MOTOSUGI KATSUHIKO , NAGAMATSU TOSHIHIRO , MORI SETSUO , KUROSE KUNIO
IPC分类号： F01N3/22
摘要： PURPOSE:To maintain an air fuel ratio of a catalyst flowed-in exhaust gas within a fixed range by a method wherein an amount of a secondary air supplied is controlled according to an output signal of an oxygen concentration detector. CONSTITUTION:When the amount of the secondary air supplied is required to be reduced at the stationary operation, a lock coil 226 is interrupted to be commutated by an electronic control circuit, a control core 218 and a flapper 234 being released from a coupled state, a diaphragm 40 being sucked upward by an air suction negative pressure supplied to an operation chamber 212 and the control core 218 being kept moved at the upper position until a signal coming in from an O2-sensor to causes the amount of the secondary air flow to be reduced. On the other hand, if the air flow is increased at the stationary operation, the lock coil 226 is commutated, the control core 218 and the flapper 238 are integrated by a magnetic force, the air is supplied from an inducing opening 232 through a filter 230 the control core 218 is prevented to descend and the flow is increased as much as a length of a stroke corressponding to a gap L.

2. 发明专利

JPS56124621A EXHAUST GAS CONTROLLING ACTUATOR 失效
公开(公告)号：JPS56124621A
公开(公告)日：1981-09-30
申请号：JP2781380
申请日：1980-03-05
申请人： TOYOTA MOTOR CO LTD , TAIHO KOGYO CO LTD
发明人： SUMIYOSHI MASAHARU , MOTOSUGI KATSUHIKO , NAGAMATSU TOSHIHIRO , MORI SETSUO , KUROSE KUNIO
IPC分类号： F01N3/22
摘要： PURPOSE:To maintain an air fuel ratio of a catalyst flowed-in exhaust gas in an exhaust system within a fixed range by a method wherein an amount of secondary air supplied to the exhaust system is controlled by an output signal of an oxygen concentration detector provided in the exhaust gas flow. CONSTITUTION:When the amount of the secondary air flow is required to be reduced, a commutation to a lock coil 228 is interrupted by an electronic control circuit 42, and a coupling state of the control core 224 and the flapper 226 is released. Since an electromagnetic switching valve 214 is not fed with currents, the air is supplied to a pressure inducing opening 216 to cause an actuating chamber 222 to be occupied with the atmospheric pressure, a diaphragm 40 descends and the air flow is reduced until a signal being fed from an O2-sensor 14. On the other hand, when the flow is increased, the coil 228 is commutated by the electronic control circuit 42, the control core 224 and the flapper 226 are integrated and at the same time, the flapper 226 and the valve body 26 is raised by an air supply pipe negative pressure induced through the electromagnetic switching valve 214 and the flow is increased.

3. 发明专利

JPS5289721A EGR CONTROLLING SYSTEM MADE OF ALUMINUM ALLOY 失效
公开(公告)号：JPS5289721A
公开(公告)日：1977-07-27
申请号：JP569076
申请日：1976-01-20
申请人： TOYOTA MOTOR CO LTD , TAIHO KOGYO CO LTD
发明人： KUROSE KUNIO , UENO KINYA , MATSUMOTO NOBORU
IPC分类号： F02B1/04 , F02M25/07
摘要： PURPOSE:Those sections to have been exposed to the exhaust gas is made of a casting in aluminum alloy series which is coated by tetra fluoride ethylene so as to obtain a EGR controlling system which is light in weight, and has an excellent heat-proof and anti-corrosion resistance characteristics.

4. 发明专利

JPS59179338A Composite sliding material 失效
标题翻译：复合滑动材料
公开(公告)号：JPS59179338A
公开(公告)日：1984-10-11
申请号：JP5616083
申请日：1983-03-31
申请人： Taiho Kogyo Co Ltd
发明人： KUROSE KUNIO , TSUJI HIROKAZU , HOSAKA YUUJI
IPC分类号： B32B15/08

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