公开(公告)号：JPH06159029A

公开(公告)日：1994-06-07

申请号：JP33232392

申请日：1992-11-17

Applicant: MAZDA MOTOR

Inventor： NAKANE HISANORI ,  NAITO MASAHIRO ,  INAGI KOJI

IPC: F01M1/16 ,  F02B39/14 ,  F02D45/00

Abstract: PURPOSE:To avoid an increase of the driving loss of an oil pump in all the area, and to secure the lubricating oil pressure according to the request of a supercharger in the supercharging area, while to prevent a lubrication shortage owing to the reduction of the hydraulic pressure at a high temperature time in the nonsupercharging area, in an engine which has a supercharger operating in a specific operating area. CONSTITUTION:A controller 30 to operate a relief valve 18 in the nonsupercharging area in an engine operating time when the lubricating oil pressure is not reduced, to control the lubricating oil pressure to a low value, so as to prevent the lubricating oil pressure from increasing more than the necessary value, and to prohibit the reduction control of the lubricating oil pressure in the nonsupercharging area, after a warm-up operation of the engine to reduce the lubricating oil pressure less than a set value is finished, is provided.

公开(公告)号：JPH0626376A

公开(公告)日：1994-02-01

申请号：JP17977692

申请日：1992-07-07

Applicant: MAZDA MOTOR

Inventor： NAITO MASAHIRO ,  NAKANE HISANORI ,  NAKAO MASAMI

IPC: F02D41/02 ,  F02D23/00 ,  F02D23/02 ,  F02D41/10 ,  F02D41/34 ,  F02D43/00 ,  F02M25/07

Abstract: PURPOSE:To prevent an engine output at acceleration from lowering and maintain the control accuracy of air-fuel ratio at acceleration. CONSTITUTION:An engine E is provided with a shutter valve 25 in which first and second branch air intake passages 20A and 20B are provided, the first branch air intake passage 20A is opened in the overall engine operating range of the engine, the second branch air intake passage 20B connected to an EGR passage 36 is opened to the low load and low speed range of the engine. A control unit ECU, when the shutter valve 25 is opened in a condition that the exhaust circulating gas is introduced into the second branch air intake passage 20B, increases the amount of fuel largely more than when the shutter valve 25 is opened in a condition that the exhaust circulating gas is not introduced to advance the ignition timing largely and inject fuel only from an fuel injection nozzle 8 of the first branch air intake passage 20A.

公开(公告)号：JP2014196708A

公开(公告)日：2014-10-16

申请号：JP2013072841

申请日：2013-03-29

Applicant: マツダ株式会社 ,  Mazda Motor Corp

Inventor： NAKAJIMA JUN ,  NAITO MASAHIRO ,  MORI DAISUKE ,  AOKI KOTA ,  TAGAWA YUKA

IPC: F01P7/16

Abstract: 【課題】冷却水流路制御装置において、大型化することを抑制しながら、複数の冷却水流路への通水の切り換えを実現する。【解決手段】内周面に第1冷却水流路26、28に通じるハウジング側第1開口部45、47が周方向に並べて複数設けられたハウジング40と、ハウジング40内に回動可能に収容され、外周面から内部空間に通じるバルブ側開口部311が設けられたロータリバルブ30と、ロータリバルブ30を回転駆動し、その回転角に応じてバルブ側開口部311に連通するハウジング側第1開口部45、47の開口面積を制御する制御部80とを有し、ロータリバルブ30は一端部に軸方向に突出する弁部312を有し、ハウジング40は弁部312の軸方向の対応位置にハウジング側第2開口部46を有し、ロータリバルブ30の回転角に応じ弁部312がハウジング側第2開口部46の開口面積を増減させる。【選択図】図4

Abstract translation: 要解决的问题：在冷却水流路控制装置中，在抑制尺寸扩大的同时，对多个冷却水流路进行导水切换。发动机的冷却水流路控制装置具有：壳体 40，其中与第一冷却水流动通道26,28相连通的多个壳体侧第一开口45,47在周向面上在圆周方向上排列; 旋转阀30，其容纳在壳体40中以便可旋转，并且其中形成有从外周面与内部空间连通的阀侧开口311; 旋转驱动旋转阀30的控制部80，根据旋转阀的旋转角度来控制与阀侧开口311连通的壳体侧第一开口部45,47的开口部。 旋转阀30在一端具有轴向突出的阀部分312，壳体40在轴向方向上对应于阀部分312的位置处具有壳体侧第二开口46，并且阀部分312增加和减少 根据旋转阀30的旋转角度，壳体侧第二开口46的开口面积。

公开(公告)号：JP2014163224A

公开(公告)日：2014-09-08

申请号：JP2013031899

申请日：2013-02-21

Applicant: Mazda Motor Corp ,  マツダ株式会社

Inventor： MATSUMOTO DAISUKE ,  TABATA DAISUKE ,  NAITO MASAHIRO

IPC: F01P3/02

CPC classification number: F01P3/02 ,  F01P5/10 ,  F01P7/16 ,  F01P2003/028 ,  F01P2060/16 ,  F02F1/14

Abstract: PROBLEM TO BE SOLVED: To provide a cooling structure for a multi-cylinder engine for effectively attaining the cooling of a cylinder head during a cold time and the warm-up promotion of the engine.SOLUTION: A cylinder block has an introduction part provided on one end side of a cylinder train for introducing cooling liquid into a water jacket, a restriction part provided near the introduction part for restricting the flow of the cooling liquid into an intake side portion of the water jacket of the cylinder block, and an inclination part provided near the introduction part for directing the cooling liquid introduced from the introduction part to the cylinder head side. A cylinder head has a drain part provided on the other end side of the cylinder train for draining the cooling liquid from the water jacket of the cylinder head. On the cylinder head side of the inclination part, a communication passage is provided for connecting the cylinder block and the water jacket of the cylinder head to each other.

Abstract translation: 要解决的问题：提供一种用于多缸发动机的冷却结构，用于在冷时间和发动机的预热促进期间有效地实现气缸盖的冷却。解决方案：气缸体具有引入部分 用于将冷却液引入水套的气缸列的一端侧，设置在导入部附近的限制部，用于将冷却液的流动限制在气缸体的水套的吸入侧部;倾斜部 设置在导入部附近，用于将从导入部导入的冷却液引导到气缸盖侧。 气缸盖具有设置在气缸列的另一端侧的排出部，用于从气缸盖的水套排出冷却液。 在倾斜部的气缸盖侧，设置有用于将气缸体和气缸盖的水套彼此连接的连通通路。

公开(公告)号：JP2009062852A

公开(公告)日：2009-03-26

申请号：JP2007230603

申请日：2007-09-05

Applicant: Mazda Motor Corp ,  マツダ株式会社

Inventor： NAITO MASAHIRO ,  OKADA SHIGEMI ,  YAMANE JUN

IPC: F01M9/08 ,  F01M1/06 ,  F01M9/10

CPC classification number: F01M9/101 ,  F01M1/06 ,  F01M1/08 ,  F01M2001/064

Abstract: PROBLEM TO BE SOLVED: To ensure the lubricity of a peripheral surface of a cam lobe while reducing the quantity of lubricant.
SOLUTION: The lubricating device of a valve train system is equipped with a cam shaft provided on a cylinder head and a plurality of cam lobes provided on the cam shaft for each valve provided on the cylinder head, and converts the rotational movement of the cam lobe into an opening/closing movement of the valve via a slide member on which the peripheral surface of the cam lobe slides. The lubricating device is characterized in that it is equipped with an oil passage of lubricant formed on the inside part of the cam shaft, a nozzle of lubricant which opens to the peripheral surface of either one of the cam lobe adjacent to each other and communicates with the oil passage, and a wall body having a recess portion which collects the lubricant ejected out of the nozzle and guides to the peripheral surface of the other cam lobe of the cam lobe adjacent to each other when the one cam lobe is located in a position in which the nozzle is not directed to the slide member.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了确保凸轮凸缘的周面的润滑性，同时减少润滑剂的量。 解决方案：气门系统的润滑装置配备有设置在气缸盖上的凸轮轴和设置在设置在气缸盖上的每个阀的凸轮轴上的多个凸轮凸角，并且转换 凸轮凸起经由凸轮凸缘的外周表面滑动的滑动构件进入阀的打开/关闭运动。 润滑装置的特征在于，其具有形成在凸轮轴的内部的润滑油路，润滑剂喷嘴，其与相邻的凸轮凸角中的任一个的周面通过，并与 所述油通道和壁体具有凹部，所述凹部收集从所述喷嘴喷出的润滑剂并且当所述一个凸轮凸角位于所述凸轮凸角的位置时引导到所述凸轮凸角的另一凸轮凸角的周向表面 其中喷嘴不被引导到滑动构件。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2004162661A

公开(公告)日：2004-06-10

申请号：JP2002331672

申请日：2002-11-15

Applicant: Mazda Motor Corp ,  マツダ株式会社

Inventor： FUKUMA MASANARI ,  NAITO MASAHIRO ,  SHIMIZU KOICHI

IPC: F01L1/34

Abstract: PROBLEM TO BE SOLVED: To sufficiently form an oil path to be used for a variable valve timing device for an engine on a cam cap without increasing the scale of the cam cap.
SOLUTION: Principal parts of at least two oil paths of a hydraulic supply oil path 60, an oil path 62 for an advanced angle and an oil path 63 for a delayed angle are constituted of grooved passages 90, 91 and 92 provided on one end face orthogonal to a cam shaft direction in the cam cap 4 and cover members to cover the end face. Since the oil paths 60, 62 and 63 are not formed in the cam cap 4, the cam cap 4 does not become thick in a width direction and the increase in scale of the cam cap 4 can be avoided.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JPH0814120A

公开(公告)日：1996-01-16

申请号：JP16889794

申请日：1994-06-27

Applicant: MAZDA MOTOR

Inventor： NIWA YASUSHI ,  NAITO MASAHIRO

IPC: F02M25/08

Abstract: PURPOSE:To prevent generation of air-fuel ratio variation such as over-rich due to erroneous judgement of purge concentration estimation at beginning purge by providing a pre-purge valve opening means temporarily opening a purge valve before beginning purge in a prescribed operation territory. CONSTITUTION:Evaporated fuel generated in a fuel tank 21 is stored in a canister 28, the canister 28 is connected to a purge passage 30 on the position standing side by side with a vapor passage 26, and the way of the passage 30 is communicated to an intake passage 10C through a purge valve 32 and a chamber 33. When a prescribed purge execution condition is satisfied, evaporated fuel is released from the canister 28 and supplied to the intake passage 10C. At this time, the purge valve 32 is temporarily opened before beginning purge in a prescribed operation territory. Hereby, generation of air-fuel ratio variation such as over-rich due to erroneous judgement of purge concentration estimation at beginning purge can be prevented.

公开(公告)号：JPH0633861A

公开(公告)日：1994-02-08

申请号：JP18391392

申请日：1992-07-10

Applicant: MAZDA MOTOR

Inventor： NAITO MASAHIRO ,  NAKANE HISANORI ,  SHIOMI KAZUHIRO

IPC: F02P15/00

Abstract: PURPOSE:To maintain the excellent ignition state at low or high temperature state and prevent the change of the ignition state due to the progress of the exhaustion of an electrode. CONSTITUTION:A series gap 17 is arranged in series with the electric discharge gap of a spark plug 2 between the electrode of the spark plug 2 and an ignition coil 5. A varying means 18 for the gap length G of the series gap is installed, and an operation controller 20 which operates the gap length varying means in the direction for reducing the gap length when the battery voltage is less than a set low voltage value and the spark plug temperature is lower than a set high temperature, is installed. Further, the gap length varying means is operated so that the gap length is kept constant according to the integration traveling distance by an operation control means.

公开(公告)号：JPH0626435A

公开(公告)日：1994-02-01

申请号：JP18008992

申请日：1992-07-07

Applicant: MAZDA MOTOR

Inventor： NAITO MASAHIRO ,  SHIOMI KAZUHIRO ,  NAKANE HISANORI

IPC: F02B53/12 ,  F02P5/15 ,  F02P5/152 ,  F02P5/153 ,  F02P15/08

Abstract: PURPOSE:To more certainly prevent knocking while preventing thermal damage of a catalyzer in a device furnished with a plural number of ignition plugs. CONSTITUTION:A plural number of ignition plugs 15 and an ignition timing control means 24 to control their ignition timing are provided. Additionally, a knocking detection means 24 to detect generation of knocking is provided. Thereafter, a retard control means 25 to practice retard of ignition timing at the larger retard amount, the more the number of ignition is provided. Additionally, an ignition stopping means 26 to stop ignition of one part within a plural number of the ignition plugs 15 at the time when knocking is detected is provided.

公开(公告)号：JPH0626428A

公开(公告)日：1994-02-01

申请号：JP18208292

申请日：1992-07-09

Applicant: MAZDA MOTOR

Inventor： OKIMOTO HARUO ,  NAKANE HISANORI ,  NAITO MASAHIRO ,  TOMITA YOSHIAKI ,  SHIOMI KAZUHIRO

IPC: F02B53/12 ,  F02D41/04 ,  F02D43/00 ,  F02P3/00 ,  F02P5/15 ,  F02P15/08

Abstract: PURPOSE:To improve ignitability of an engine devising the engine furnished with a plural number of ignition plugs facing one combustion chamber to certainly ignite a part of a plural number of the ignition plugs. CONSTITUTION:A first ignition means 37 to generate secondary voltage in accordance with discharge of a condenser C and a second ignition means 30 to generate the secondary voltage in accordance with OFF actuation of a transistor Tr are provided, and both of the ignition means 37 and 30 are jointly used against an ignition plug 9 which is a part of a plural number of the ignition plugs 9, 10 and is high in a combustion contributory rate.