公开(公告)号：JP2007064425A

公开(公告)日：2007-03-15

申请号：JP2005253419

申请日：2005-09-01

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： MATSUDA KIYOSHI ,  NAKAMURA NORIO

IPC: F16H57/027 ,  F16H57/037 ,  F16H57/038 ,  F16H57/039

CPC classification number: F16H57/027

Abstract: PROBLEM TO BE SOLVED: To provide a breather plug which simplifies construction and simultaneously which can adjust internal pressure of a case by allowing only passage of air without allowing passage of foreign matter such as oil.
SOLUTION: The breather plug 1 is composed of a first cylindrical body 6 which is attached to a wall portion 2a of the case 2, a second cylindrical body 9 which is screwed to a recessed portion 5 provided on the first cylindrical body 6 and an internal pressure adjustment filter 10 which is installed on the recessed portion 5 of the first cylindrical body 6 and is interposed between a first communication passage 3 of the first cylindrical body 6 and a second communication passage 7 of the second cylindrical body 9 whereby the second cylindrical body 9 is screwed on the recessed portion 5 of the first cylindrical body 6. Thus, the breather plug 1 is constituted of a reduced number of components and is simplified in construction and simultaneously enables the filter to adjust the internal pressure of the case 2 by allowing only passage of air without allowing passage of the foreign matter such as oil within the case 2 by means of the filter 10 for the internal pressure adjustment.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种简化结构的通气塞，同时可以通过仅允许空气通过而不允许诸如油的异物通过来调节壳体的内部压力。

解决方案：呼吸塞1由附接到壳体2的壁部2a的第一圆筒体6，与第一圆筒体6上设置的凹部5螺纹连接的第二圆筒体9构成 以及安装在第一圆筒体6的凹部5上并设置在第一筒体6的第一连通路3与第二筒体9的第二连通路7之间的内压调整过滤器10， 第二圆柱体9被拧在第一圆柱体6的凹部5上。因此，通气塞1由部件数量减少构成，结构简化，同时能够使过滤器调节壳体的内部压力 如图2所示，仅允许空气通过，而不允许通过用于内部压力调节的过滤器10使壳体2内的异物例如油通过。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007023845A

公开(公告)日：2007-02-01

申请号：JP2005205051

申请日：2005-07-14

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： MATSUDA KIYOSHI ,  NAKAMURA NORIO

IPC: F01L1/24

Abstract: PROBLEM TO BE SOLVED: To provide a lash adjuster installation structure capable of forming a passage for releasing air at the time of insertion of a lash adjuster into a lash adjuster insertion hole without producing burr.
SOLUTION: A sleeve 9 is interposed between the lash adjuster installation hole 34 and the lash adjuster, and an air releasing passage 9A is formed between an outer circumference surface of the sleeve 9 and an inner circumference surface of the lash adjuster installation hole 34 by forming an air releasing groove 92 on the outer circumference surface of the sleeve 9. Consequently, air in a space formed by an inside of the sleeve 9 and a bottom surface of the lash adjuster 82 is released from an upper surface of a cylinder head 3 through the air releasing passage 9A at the time of insertion work of the lash adjuster 82.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种间隙调节器安装结构，其能够在不产生毛刺的情况下形成用于在间隙调节器插入间隙调节器插入孔时释放空气的通道。 解决方案：套管9插入在间隙调节器安装孔34和间隙调节器之间，并且空气释放通道9A形成在套筒9的外周表面和间隙调节器安装孔的内周表面之间 通过在套筒9的外周面上形成排气槽92，由此，由套筒9的内部形成的空间和间隙调节器82的底面的空气从气缸的上表面释放 在间隙调节器82的插入工作时，头3通过空气释放通道9A。（C）2007年，JPO和INPIT

公开(公告)号：JPH02308960A

公开(公告)日：1990-12-21

申请号：JP13032189

申请日：1989-05-24

Applicant: TOYOTA MOTOR CORP

Inventor： KAWAI TAIYO ,  NAKAGAWA NORIHISA ,  OHASHI MICHIHIRO ,  NAKAMURA NORIO

IPC: F02M25/07

Abstract: PURPOSE:To obtain the optimum EGR rate at low/medium-load areas and secure the output at the high-load area by calculating the EGR rate in response to the correction suction pipe pressure corrected in the present atmospheric pressure when the present suction pipe pressure is the preset value or above. CONSTITUTION:A control circuit 52 determines the EGR rate by an EGR valve 36 with the correction suction pipe pressure corrected in response to the atmospheric pressure detected by the suction pipe pressure only when the suction pipe pressure detected by a pressure sensor 13 is the preset pressure or above in the engine atmospheric pressure. At the pressure below the preset pressure on the other hand, i.e., in low/medium-load areas, the EGR rate is determined by the uncorrected suction pipe pressure (in the standard atmospheric pressure), and the optimum EGR quantity is determined. In this case, only the engine rotating speed detected by a rotation angle sensor 54 and the EGR rate based on the suction pipe pressure may be prepared. The optimum EGR rate in low/ medium-load areas is obtained, and the engine output in the high-load area, particularly near the fully opened area of a throttle valve, can be secured.

公开(公告)号：JPH02130252A

公开(公告)日：1990-05-18

申请号：JP28110988

申请日：1988-11-07

Applicant: TOYOTA MOTOR CORP

Inventor： NAKAMURA NORIO ,  OHASHI MICHIHIRO

IPC: F02M25/07

Abstract: PURPOSE:To speedily judge anomaly with high precision by compulsorily opening a control valve by a prescribed opening degree in idling state and calculating the variation rate of the revolution speed at this time and comparing the rate with a prescribed value and judging anomaly of an exhaust recirculation device on the basis of the result of the comparison. CONSTITUTION:When an idling judging means M5 judges that an internal combustion engine EG is in idling on the basis of the result of the detection by an operation state detecting means M4, the control valve M2 of an exhaust recirculation device (EGR device) M3 is compulsorily opened by a prescribed opening degree by a compulsorily valve opening means M6. The variation rate of the revolution speed of the engine EG in the case when the valve M2 is opened is calculated on the basis of the result of the detection of the detecting means M4, by an operation speed variation rate calculating means M7, and the variation rate is compared with a prescribed value by a comparing means M8, and an anomaly judging means M9 judges the anomaly of the EGR device M3 on the basis of the result. Further, even if the opening degree of the valve M2 which is detected by the means M6 is little, the revolution variation of the engine EG can be detected, and the generation of stall can be prevented.

公开(公告)号：JPH02108831A

公开(公告)日：1990-04-20

申请号：JP26017188

申请日：1988-10-14

Applicant: TOYOTA MOTOR CORP

Inventor： NAKAMURA NORIO

IPC: F02D41/12 ,  F02D21/08 ,  F02D43/00 ,  F02M25/07

Abstract: PURPOSE:To prevent the decrease in emission and operationability by stopping fuel injection into an internal combustion engine when the actual opening degree of an EGR control valve becomes larger than an indicated one because of not in time for the indicated opening degree an exhaust recirculating means receives while the internal combustion engine is decelerating. CONSTITUTION:In the fuel injection controller which is provided with a fuel injecting means M3 and an exhaust recirculating means M8 including a control valve M7 and controls the exhaust recirculating means M8 through an indicated opening degree output means 9 according to the load of an internal combustion engine M1, a difference judging means M12 is provided to judge whether the difference by which the indicated opening degree outputted by the indicated opening degree output means M9 is subtracted from the actual opening degree of the control valve M7 detected by an actual opening detecting means M11 is more than a preset one. When a decelerating condition judging means M10 judges that a decelerating condition is made and the difference judging means M12 judges that a difference is beyond the preset one, a stopping means M13 stops fuel injection supply in the above fuel injecting means M3.

公开(公告)号：JPH0278765A

公开(公告)日：1990-03-19

申请号：JP28077288

申请日：1988-11-07

Applicant: TOYOTA MOTOR CORP

Inventor： KINOSHITA YOSHIAKI ,  NAKAMURA NORIO

IPC: F02M25/07

Abstract: PURPOSE:To accurately diagnose troubles by continuing operation of an internal combustion engine even after OFF of the engine key switch, and judging troubles in an exhaust gas recycling device when the operating condition of the internal combustion engine does not change in spite of execution of increasing opening control of an exhaust gas recycling control valve. CONSTITUTION:When a key switch 56 is off, an exhaust gas recycling control valve 20 is fully opened by an exhaust gas recycling control device 62 through a step motor 33. At this time, if the step motor 33 is troubled or a sticking trouble is generated in a valve element 24, stall of an internal combustion engine is not generated, as the exhaust gas recycling control valve 20 can not be fully opened. Hereby, when the speed of the internal combustion engine 1 detected with an engine speed sensor 51 is not same as the predetermined value 0 or near to 0 or lower than it, the internal combustion engine 1 is continued to operate, and the trouble of the exhaust gas recycling control device 62 is judged.

公开(公告)号：JPS6453030A

公开(公告)日：1989-03-01

申请号：JP20891387

申请日：1987-08-21

Applicant: TOYOTA MOTOR CORP

Inventor： OHASHI MICHIHIRO ,  NAKAMURA NORIO

IPC: F02D21/08 ,  F02D43/00 ,  F02D45/00 ,  F02M25/07

Abstract: PURPOSE:To aim at improvements in fuel consumption and drivability by installing an intake pressure sensor, detecting inlet pipe pressure, in a surge tank formed in an inlet pipe, and also installing an intake pressure compensating device which compensates intake pressure according to atmospheric pressure. CONSTITUTION:In an inlet pipe 4, there is provided with a surge tank 14 for checking the pulsation of intake air. And in this surge tank 14, there is provided with an intake pressure sensor 16 which detects the extent of inlet pipe pressure. An exhaust gas recirculation system 24 consists of an EGR valve 26, a pressure- regulating valve 28 and an EGR permitting valve 30. An electronic control circuit 44 has an intake pressure compensating device which compensates the extent of intake pressure according to atmospheric pressure. Thus, the lowering of emission and the occurrence of knocking are prevented from occurring, and improvements in fuel consumption and drivability are well promotable.

公开(公告)号：JPH033957A

公开(公告)日：1991-01-10

申请号：JP13720089

申请日：1989-05-30

Applicant: TOYOTA MOTOR CORP

Inventor： KAWAI TAIYO ,  NAKAGAWA NORIHISA ,  NAKAMURA NORIO ,  OHASHI MICHIHIRO

IPC: F02M25/07 ,  F02D21/08

Abstract: PURPOSE:To precisely control EGR to a high-load area by calculating the indication opening of an exhaust gas re-circulating valve based on the intake pipe pressure or intake air quantity and engine rotating speed, and correcting the throttle opening accordingly when it is the preset value or above. CONSTITUTION:An arithmetic means D calculates the indication opening STEP of an exhaust gas re-circulating (EGR) valve based on the intake pressure PM or intake air quantity Q detected by the first sensor A and the engine rotating speed NE detected by the second sensor B. When the throttle opening TA detected by the third sensor C is the preset value or above, i.e., in a high-load area, the indication opening STEP is corrected by a correcting means E according to the throttle opening TA, and a control means F adjusts the opening of the EGR valve with the corrected indication opening ESTEP. EGR can be precisely controlled to a high-load area without deteriorating driveability.

公开(公告)号：JPH01142257A

公开(公告)日：1989-06-05

申请号：JP29934387

申请日：1987-11-27

Applicant: TOYOTA MOTOR CORP

Inventor： NAKAMURA NORIO

IPC: F02M25/07 ,  F02M25/06

Abstract: PURPOSE:To carry out the correction of the atmospheric pressure of an EGR ratio simply and accurately by converting an intake pipe pressure under atmospheric pressure during the traveling of a vehicle into an intake pipe pressure under a reference atmospheric pressure and operating the EGR ratio using the converted value. CONSTITUTION:A control circuit 52 receives the detected signals of a pressure sensor 13 which detects both atmospheric pressure and intake pipe pressure and which is provided via a VSV (vacuum switching valve) 11 and a rotation angle sensor 43 provided on a distributor 48, etc. while, on the other hand, outputs a defined control signal to an EGR valve 36 provided on an EGR passage 30. In this structure, an intake pipe pressure under atmospheric pressure during the traveling of a vehicle is converted into an intake pipe pressure under a reference atmospheric pressure. Using this converted value, an EGR ratio is operated from a table which stores an EGR ratio which is set based on the intake pipe pressure under the reference atmospheric pressure and an engine speed. Thereby, the correction of the atmospheric pressure of the EGR ratio can be simply and accurately carried out.