公开(公告)号：JP2004308624A

公开(公告)日：2004-11-04

申请号：JP2003106428

申请日：2003-04-10

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

Inventor： SATO MASAAKI ,  IMAMURA SATOSHI ,  HASEFUJI SAKUYOSHI ,  ISAYAMA KAZUO ,  NODA AKIHIRO ,  ISHII KENYA

IPC: B23P21/00 ,  F02B67/06 ,  F02B77/00

Abstract: PROBLEM TO BE SOLVED: To match the rotation phase of a shaft accurately while insuring assembly accuracy of each shaft and sprocket without a key in an engine with a chain drive type balancer device.
SOLUTION: After mounting the balancer device 6 fixed at a prescribed position with a tool, an oil pan 2 is mounted, each sprocket 4, 7, 8, 9, 70 are tightened temporarily, a timing chain 10 and a balancer chain 5 are wound, a timing chain tensioner 13 and a balancer chain tensioner 11 are mounted in a lock state, a crankshaft 3 and a cam shaft are fixed at a prescribed position, the balancer sprocket 70 is fully tightened, the lock of each chain tensioner 11, 13 is released, the cam sprocket 8, 9 are fully tightened, the tool is removed by pulling a pin 75, a chain cover is attached, a damper pulley is attached, and the crank sprocket 4, 7 are fully tightened.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004301021A

公开(公告)日：2004-10-28

申请号：JP2003095002

申请日：2003-03-31

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

Inventor： MATSUE ARATA ,  SATO MASAAKI ,  INOUE YASUSHI ,  ABE RYOJI ,  OZURU TAKASHI ,  OKAMOTO NAOYUKI

IPC: F01M1/06 ,  F01M1/02 ,  F01M9/10 ,  F01M11/03 ,  F16F15/26

Abstract: PROBLEM TO BE SOLVED: To facilitate formation of an oil passage for lubricating a chain drive type balancer.
SOLUTION: The balancer 6 is bolted at the skirt lower portion of a cylinder block 1 and an oil pump 20 is disposed on its side to drive a balancer shaft 7 and the oil pump 20 through a chain 5. An oil filter is disposed sideways on the rear part of the cylinder block. A pipe 27 is disposed to supply the oil immediately after passing the oil filter in an oil passage led to an oil gallery in the cylinder block via the oil filter from the oil pump 20, to the oil passage of a rear journal part.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2001099232A

公开(公告)日：2001-04-10

申请号：JP27462299

申请日：1999-09-28

Applicant: MAZDA MOTOR

Inventor： HIROSE ICHIRO ,  ISAYAMA KAZUO ,  FUJIHIRA SHINJI ,  SATO MASAAKI

IPC: F02B77/00 ,  F16F15/26

Abstract: PROBLEM TO BE SOLVED: To reduce a backlash noise caused by deterioration of meshing due to a difference of thermal expansion. SOLUTION: A balancer case 21 is fastened to a lower part of a cylinder block via a turret 12 constituted of material having coefficient of linear expansion approximately equal to that of a crankshaft 11 and that of a balancer shaft 22.

公开(公告)号：JPH04166622A

公开(公告)日：1992-06-12

申请号：JP29481490

申请日：1990-10-30

Applicant: MAZDA MOTOR

Inventor： TAJIMA SEIJI ,  NIWA YASUSHI ,  SATO MASAAKI

IPC: F02B37/007 ,  F02B53/06 ,  F02B53/08 ,  F02D9/02

Abstract: PURPOSE:To dispense with a conventional shutter valve in an engine supercharger provided with two pairs turbo chargers by making control of throttle valves disposed respectively on a primary and a secondary intake passage different in an operating region where only the supercharger on the primary side is driven in an operating region where both supercharger are driven. CONSTITUTION:In a rotary engine provided with primary and secondary turbochargers 4, 6 throttle valves 16a, 16b are disposed on the way of two intake passages 9a, 9b bisected downstream of an air cleaner of an intake passage 9, respectively, and are connected to an electrically-driven actuator 60 via link rods LRa, LRb, respectively. An ECU 46 determines whether or not present operating condition is in a region to drive the supercharger 4, 6. If the result affirmative, the electrically driven actuator 60 is lockingly operated so that the link positions LRa, LRb are connected to each other, for mutual connection of the throttle valves 16a, 16b. Thereafter, each degree of the throttle valves 16a 16b is controlled in a connected state. Meanwhile, if the result is negative, the connected state is released, and the operating degree of only the throttle valve 16a is controlled.

公开(公告)号：JPH03286143A

公开(公告)日：1991-12-17

申请号：JP8580790

申请日：1990-03-31

Applicant: MAZDA MOTOR

Inventor： TAJIMA SEIJI ,  NIWA YASUSHI ,  SATO MASAAKI

IPC: F02B37/007 ,  F02B37/00

Abstract: PURPOSE:To avoid the bad influence due to prerevolution while securing the responsiveness on the start of the operation of a secondary side turbosupercharger by utilizing the prerevolution in the ordinary time, and prohibiting the prerevolution when the time in which the secondary side exhaust turbosupercharger is in prerevolution is over a prescribed time. CONSTITUTION:A primary side exhaust turbosupercharger 9 which is operated at least in low speed revolution for an engine 1 and a secondary side exhaust turbosupercharger 10 which is operated only in high speed revolution are installed. The turbosupercharger 10 is previously put into prerevolution by a leak valve 13 before operation. In this case, a prerevolution prohibiting means 35 for prohibiting the prerevolution when the prerevolution time of the supercharger 10 is over a prescribed time is installed. Accordingly, when the prerevolution is carried out for a prescribed time or more, the bad influence such as the breakage of the secondary side turbosupercharger can be suppressed, since the prerevolution is suppressed.

公开(公告)号：JPH0370818A

公开(公告)日：1991-03-26

申请号：JP20519689

申请日：1989-08-08

Applicant: MAZDA MOTOR

Inventor： NIWA YASUSHI ,  OKIMOTO HARUO ,  TAJIMA SEIJI ,  SATO MASAAKI

IPC: F02B37/007 ,  F02B37/00

Abstract: PURPOSE:To substantially keep the first supercharger from being influenced by heat of exhaust gas by extending an outlet side exhaust passage forming portion from a connecting exhaust passage forming portion downward to be bent to the second supercharger side. CONSTITUTION:The primary side and secondary side superchargers 30, 35 are connected by a connecting exhaust passage forming portion 46 and disposed side by side on an engine main body 10. An outlet side exhaust passage forming portion 50 for guiding exhaust gas discharged from turbine chambers 30A, 35A and passed through the connecting exhaust passage forming portion 46 to the outside has an upstream end portion 50a connected to the connecting exhaust passage forming portion 46. In this case, the outlet side exhaust passage forming portion 50 is extended from the connecting exhaust passage forming portion 46 obliquely downward by a designated distance to be bent 10 the secondary side supercharger 35 side. Thus, the whole intake system can be reduced in size, and the primary side supercharger 30 liable to become high temperature can be substantially kept from being influenced by heat of exhaust gas.

公开(公告)号：JP2015045294A

公开(公告)日：2015-03-12

申请号：JP2013177559

申请日：2013-08-29

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

Inventor： SUGIMOTO MANABU ,  KOJIMA YUJI ,  SATO MASAAKI

IPC: F02M25/07

CPC classification number: Y02T10/121

Abstract: 【課題】簡単な構成でかつ排気抵抗を小さく抑えつつ水滴によるコンプレッサへの悪影響を小さく抑えることのできる車両用エンジンの吸排気装置を提供する。【解決手段】吸気通路20のうちコンプレッサ41よりも上流側の部分と排気通路30とを接続して排気を吸気通路20に還流するEGR通路70のうちEGRクーラー74よりも下流側の第1通路81の流路面積を、EGR通路70のうちこの第1通路81よりも下流側の第2通路82の流路面積よりも大きくするとともに、第1通路81の下流端の高さ位置をその上流端の高さ位置よりも高くする。【選択図】図3

Abstract translation: 要解决的问题：提供能够以简单的结构抑制由于水滴而对压缩机产生不利影响同时抑制排气阻力的车辆发动机的进气/排气装置。解决方案：在用于连接一部分 在具有排气通道30的压缩机41的上游侧的进气通道20的下游侧的第一通道81的流路面积比在EGR冷却器74的下游侧的流路面积大于下侧的第二通道82的流路面积 在EGR通道70中的第一通道81的流侧。第一通道81的下游端的高度位置高于其上游端的高度位置。

公开(公告)号：JP2012002216A

公开(公告)日：2012-01-05

申请号：JP2010140779

申请日：2010-06-21

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

Inventor： OKAZAWA HISASHI ,  SATO MASAAKI ,  OGUCHI TOSHIHIRO ,  OKII NORIYOSHI ,  NAKAJIMA KEISUKE ,  HAYAKAWA MOTOO ,  FUJII NOBUHIRO ,  WAKITA YUJI ,  OTSUKI TAKESHI ,  HAYASHI YUKITERU

IPC: F01M1/16 ,  F01M1/08

Abstract: PROBLEM TO BE SOLVED: To enhance combustibility in an engine and to reduce Pf when the engine is cooled, in an engine oiling device having an oil adjusting device controlling oil pressure and an oil amount of oil supplied to each part of the engine by an oil pump.SOLUTION: A pressure regulation device 3 is constituted in such a way that oil pressure of the oil is controlled to be a low pressure setting value when temperature of an engine cooling water is a prescribed temperature or below and to be a high pressure setting value higher than the low pressure setting value when the temperature of the engine cooling water is higher than the prescribed temperature. A valve opening pressure of an oil jet 21 for piston cooling is set to be larger than the low pressure setting value and lower than the high pressure setting value.

Abstract translation: 要解决的问题：为了提高发动机的燃烧性，并且在发动机冷却时减少Pf，在具有控制油压的油调节装置的发动机上油装置和供给到发动机的各部分的油的油量 由油泵。 解决方案：压力调节装置3构成为使得当发动机冷却水的温度为规定温度以下且油压为高压时将油的油压控制为低压设定值 当发动机冷却水的温度高于规定温度时，设定值高于低压设定值。 用于活塞冷却的喷油嘴21的开阀压力被设定为大于低压设定值并且低于高压设定值。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010031763A

公开(公告)日：2010-02-12

申请号：JP2008195354

申请日：2008-07-29

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

Inventor： SATO MASAAKI ,  KAMIMURA KEIICHI ,  AOKI AKINOBU ,  HASEFUJI SAKUYOSHI ,  TSUKAMOTO MAKI ,  OGUCHI TOSHIHIRO

IPC: F01M1/06 ,  F01M5/00 ,  F01M11/02 ,  F01M11/03

Abstract: PROBLEM TO BE SOLVED: To provide an oil drop structure for an engine capable of avoiding interference with an oil supply passage of an oil drop passage while reducing passage resistance by shortening the oil supply passage between an oil cooler and an oil filter which are mounted in an arrangement to be aligned at upper and lower positions on a sidewall on one side of an engine body.
SOLUTION: An upper oil drop passage 41 is formed substantially straight so that the oil drop passage 40 formed on the sidewall of the engine body does not interfere with the oil supply passage between the oil cooler and the oil filter. An oil cooler mounting seat part 13 is formed in a frame shape having a space 42 formed thereinside, the space 42 being blocked when the oil cooler 10 is mounted thereon. The upper oil drop passage 41 and a lower oil drop passage 43 are communicated with their positions shifted in the space 42. The lower oil drop passage 43 is opened downward toward an oil pan via an open groove 44 formed on a block bonding face.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于发动机的油滴结构，其能够避免与油滴通道的供油通道的干扰，同时通过缩短油冷却器和油过滤器之间的供油通道来减小通道阻力， 被安装成在发动机主体的一侧的侧壁上的上下位置的排列。 解决方案：上部油滴通道41形成为基本上直的，使得形成在发动机主体的侧壁上的油滴通道40不会干扰油冷却器和机油滤清器之间的供油通道。 油冷却器安装座部13形成为具有形成在其中的空间42的框架形状，当安装油冷却器10时，空间42被阻挡。 上部油滴通道41和下部油滴通道43与其在空间42中移动的位置相通。下部油滴通道43经由形成在块接合面上的开口槽44朝向油盘向下打开。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009216224A

公开(公告)日：2009-09-24

申请号：JP2008063059

申请日：2008-03-12

Applicant: Mazda Motor Corp ,  Ondo Kosakusho:Kk ,  マツダ株式会社 ,  株式会社音戸工作所

Inventor： KATO CHIAKI ,  ITO KAZUYA ,  KOI NAOHIRO ,  WADA EIJI ,  OGUCHI TOSHIHIRO ,  SATO MASAAKI ,  HASEFUJI SAKUYOSHI

IPC: F16F15/26 ,  F02B77/00 ,  F02F7/00

Abstract: PROBLEM TO BE SOLVED: To provide a balancer device compact and superior in handling, having simple construction for restricting thrust to be applied from both balancer shafts. SOLUTION: The pair of balancer shafts 7, 7 are stored in a balancer housing 6. The balancer housing 6 consists of a pair of front and rear shaft supporting members 20, 30, a housing body member 40, front and rear cover members 50, 60, and a thrust plate 80, which are integrally fastened to one another with supporting bolts 9. On the side face of the thrust plate 80, a pair of thrust restricting holes 82, 82 opened at the upper sides are formed passing therethrough. The thrust restricting holes 82, 82 receive the pair of balancer shafts 7, 7 from the upper sides, and the peripheral edges of the thrust restricting holes 82 are fitted to thrust restricting grooves 101 of the balancer shafts 7 in a frictionally movable manner. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种紧凑且操纵性优异的平衡装置，具有简单的结构，用于限制从两个平衡轴施加的推力。 解决方案：一对平衡轴7,7被存储在平衡器壳体6中。平衡器壳体6包括一对前轴和后轴支撑构件20,30，壳体主体构件40，前后盖 构件50,60和推力板80，其通过支撑螺栓9彼此一体地紧固。在推力板80的侧面上，形成有在上侧开口的一对推力限制孔82,82通过 通过。 推力限制孔82,82从上侧接收一对平衡轴7,7，并且推力限制孔82的周缘以可摩擦的方式装配到平衡轴7的推力限制槽101中。 版权所有（C）2009，JPO＆INPIT