公开(公告)号：JP2009074520A

公开(公告)日：2009-04-09

申请号：JP2007246862

申请日：2007-09-25

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

Inventor： ITO TOSHIO

IPC: F01L13/00

Abstract: PROBLEM TO BE SOLVED: To reduce the size of a motor while securing sufficient torque to rotate a control shaft.
SOLUTION: The motor 14 is connected to the control shaft 12 of a variable valve train 10 via a speed reduction mechanism 18. The motor 14 controls lift amount of a valve in accordance with the rotating angle of the control shaft 12. A ratio (R1/R2) between gear diameters R1, R2 of a worm gear 20 and a worm wheel 22 in an engagement position P is formed to become smaller as the control shaft 12 is rotated to a lift increasing direction B. Thus, for example, even in the state where output torque of the motor 14 is constant, in a large operation region from small lift amount to large lift amount, the appropriate magnitude of rotating torque corresponding to valve reaction force can be applied to the control shaft 12. Therefore, since this eliminates the necessity of determining the specifications of the motor 14 in accordance with requirements on the large lift amount side, the motor with small output can be adopted.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：为了在确保足够的扭矩以使控制轴旋转的同时减小电动机的尺寸。 解决方案：马达14经由减速机构18与可变气门机构10的控制轴12连接。马达14根据控制轴12的旋转角度控制阀的提升量。 当控制轴12旋转到提升增加方向B时，蜗轮20的齿轮直径R1，R2和接合位置P的蜗轮22之间的比率（R1 / R2）形成为变小。因此，例如 即使在电动机14的输出转矩恒定的状态下，在从小升程量到大提升量的大的运转区域中，也可以对控制轴12施加与阀反作用力对应的适当的转矩大小。因此 由于不需要根据大提升量侧的要求确定电动机14的规格，所以可以采用小输出的电动机。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006342747A

公开(公告)日：2006-12-21

申请号：JP2005169955

申请日：2005-06-09

Applicant: TOYOTA MOTOR CORP

Inventor： ITO TOSHIO

IPC: F02M35/104 ,  F02M35/16

Abstract: PROBLEM TO BE SOLVED: To provide a shock absorbing structure of an internal combustion engine for a vehicle enabling miniaturization of the vehicle and appropriately absorbing collision energy at a time of collision of the vehicle. SOLUTION: This structure is mounted on a front part of the internal combustion engine main body arranged on a vehicle front part and is provided with an intake passage defining member 10 defining at least part of an intake passage IP and a shock absorbing member 20 forming at least an outer surface part of a front part of the intake passage member 10 and is made of porous material. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2003314279A

公开(公告)日：2003-11-06

申请号：JP2002122869

申请日：2002-04-24

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

Inventor： SUZUKI TETSUSHI ,  ITO TOSHIO ,  NAGABUCHI HIROKI

IPC: F01P3/20 ,  B60H1/08 ,  F01P5/10 ,  F01P11/02

Abstract: PROBLEM TO BE SOLVED: To reduce the length of a pipe between a heat storage tank or an electromotive water pump of a hot water type warming-up promotion equipment and a main body of an internal combustion engine, thereby suppressing the temperature fall of hot water so as to improve the start-up operability at the time of cold start of the internal combustion engine and effectively achieve the reduction of exhaust gas emission.
SOLUTION: The hot water type warming-up promotion equipment of an internal combustion engine for a vehicle includes the heat storage tank 68 for extracting, as hot water, part of cooling water having increased in temperature from a cooling system of the internal combustion engine 10 and storing it therein, and the electromotive water pump 64 for supplying the hot water in the heat storage tank to the cooling system of the internal combustion engine at the time of cold start of the internal combustion engine. The heat storage tank 68 and the electromotive water pump 64 are fixed to the main body 12 of the internal combustion engine 10, the heat storage tank 68 is arranged in a space surrounded by the main body 12 of the internal combustion engine 10 and an exhaust manifold 18, the internal combustion engine 10 is an internal combustion engine of a transverse type, and the heat storage tank 68 and the exhaust manifold 18 are located on a rear side of the vehicle with respect to the main body 12 of the internal combustion engine 10.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：为了减少热水型预热升温装置的蓄热水箱或电动水泵与内燃机主体之间的管道的长度，从而抑制温度下降 以提高内燃机冷启动时的启动操作性，有效地实现废气排放的减少。 解决方案：用于车辆的内燃机的热水型预热提升装置包括：蓄热箱68，用于从内部的冷却系统中提取温度升高的部分冷却水作为热水; 内燃机10并将其储存在其中，以及电动水泵64，用于在内燃机的冷启动时将蓄热箱中的热水供应到内燃机的冷却系统。 蓄热箱68和电动水泵64固定在内燃机10的主体12上，蓄热箱68配置在由内燃机10的主体12包围的空间中，排气 歧管18，内燃机10是横型的内燃机，蓄热箱68和排气歧管18相对于内燃机的主体12位于车辆的后侧 （C）2004，JPO

公开(公告)号：JP2000154722A

公开(公告)日：2000-06-06

申请号：JP32717998

申请日：1998-11-17

Applicant: TOYOTA MOTOR CORP

Inventor： ITO TOSHIO

IPC: F01P3/02

Abstract: PROBLEM TO BE SOLVED: To provide a structure of a cylinder head gasket capable of improving the cooling effect of a cylinder block, reducing the weight and cost of the cylinder block, and shortening the manufacturing time. SOLUTION: A water jacket separating part 30 provided at a cylinder head gasket 1 is provided to be recessed in the shape of a groove around cylinder bores 38 and a sealing member 34 is provided along the peripheral part of the water jacket separating part 30. When the cylinder head gasket 1 is placed on a cylinder block, the water jacket separating part 30 divides a water jacket of the cylinder block into two parts on the upper and lower sides and the sealing member 34 seals the parts between the bores of the cylinder block and the water jacket separating part 30. Further, the cylinder head gasket 1 has air vents and openings 36 for the passage of cooling water in the neighborhood of the areas between the bores 32.

公开(公告)号：JPH10252486A

公开(公告)日：1998-09-22

申请号：JP5300397

申请日：1997-03-07

Applicant: TOYOTA MOTOR CORP

Inventor： HABU NOBUO ,  ITO TOSHIO

IPC: F02B75/00 ,  F02B31/00 ,  F02B75/18 ,  F02M25/07

Abstract: PROBLEM TO BE SOLVED: To suppress occurrence of knocking by forming an EGR gas layer over the whole circumference of the peripheral part of a combustion chamber. SOLUTION: Communicating passages 18, 19, 20, 21 are arranged in this intake/exhaust device so that intake ports 6, 7, 8, 9 of air cylinders 2, 3, 4, 5 in an intake stroke and exhaust ports 13, 12, 11, 10 of air cylinders 5, 4, 3, 2 in an exhaust stroke are communicated with each other, thereby exhaust having high exhaust pressure of the air cylinder in the exhaust stroke is supplied as EGR gas to the air cylinder in the intake stroke. The negative pressure of the intake port is large at the time of a light load and blow down pressure is large at the time of a high load, therefore differential pressure between the intake port of a predetermined air cylinder and the exhaust port of the air cylinder corresponding to the predetermined air cylinder is always large. Therefore, EGR gas pressure can be sufficiently increased, and sufficiently strong intercylinder swirl can be produced in the combustion chamber of the air cylinder in the intake stroke.

公开(公告)号：JPH0763117A

公开(公告)日：1995-03-07

申请号：JP21049693

申请日：1993-08-25

Applicant: TOYOTA MOTOR CORP

Inventor： ITO TOSHIO

IPC: F02B19/16 ,  F02F1/00 ,  F02F1/24

Abstract: PURPOSE:To reduce longitudinal dimension of an engine with an auxiliary chamber of a combustion chamber disposed in between cylinders. CONSTITUTION:An auxiliary chambers 10 is disposed in between cylinders. To reduce the distance between cylinders, part of the auxiliary chamber 10 overlaps on an upper portion of a main combustion chamber 1 of an adjoining cylinder. In a lower portion of a portion of the auxiliary chamber 10, overlapping on the upper portion of the main combustion chamber 1 of the adjoining cylinder, a seal wall 30 is formed, connecting together the outer peripheral wall of the main combustion chamber and a cylinder head 3 integrally. The seal wall 30 thus covers up the portion of the auxiliary chamber 10, overlapping on the upper portion of the main combustion chamber 1 of the adjoining cylinder.

公开(公告)号：JPH06185403A

公开(公告)日：1994-07-05

申请号：JP34278292

申请日：1992-12-22

Applicant: TOYOTA MOTOR CORP

Inventor： ITO TOSHIO ,  NAKAE KOICHI

IPC: F01P3/02 ,  F02F1/36

Abstract: PURPOSE:To allow cooling of an exhaust valve sheet ring part sufficiently even if forming a plenty of bolt holes for fixation. CONSTITUTION:A main jacket 10 is provided between an intake port 4 and an exhaust port 6, an intake side sub jacket 12 is provided under the intake port 4, and an exhaust side sub jacket 14 which is narrower than the main jacket 10 is provided under the exhaust port 6. An exhaust side sub supply path 15 for introducing cooling water of a cylinder block is so formed as to open to the exhaust side sub jacket 14. A communicating path 16 which communicates the exhaust side sub jacket 14 with the main jacket 10 is formed in a bolt boss part 9A located adjacent to an exhaust valve sheet ring 7. Though the exhaust sub jacket 14 has a complicated and intricate shape, cooling water in the exhaust side sub jacket 14 flows smoothly to the main jacket 10 via the communicating path 16 without any stagnation near the exhaust valve sheet ring 7.

公开(公告)号：JPH0264221A

公开(公告)日：1990-03-05

申请号：JP21494288

申请日：1988-08-31

Applicant: TOYOTA MOTOR CORP

Inventor： TANAHASHI TOSHIO ,  ITO TOSHIO ,  ITO KAZUHIRO ,  KANAMARU MASANOBU

IPC: F01L3/06 ,  F02B23/08 ,  F02B25/20 ,  F02B75/02

Abstract: PURPOSE:To make both dimension and shape of an air supply valve and an exhaust valve substantially the same by closing an opening between a valve seat and the peripheral part on the exhaust valve side of the air supply valve for the entire period of valve-opening of the air supply valve. CONSTITUTION:A peripheral wall 8 of a recessed groove 5a, which connects inwall parts 3b and 3c of a cylinder head, consists of a pair of mask-walls 8a, which are situated very near to the peripheral part of an air supply valve 6 and moreover extend in an arced shape along the peripheral part of the air supply valve 6, and a fresh-air guide wall 8b, which is situated around an air supply valve 6. At this time, the mask- wall 8a extends toward a combustion chamber 4 beyond the maximum outer diameter part of the air supply valve 6, which is situated at the maximum left position of the valve 6. Accordingly, an opening between a valve seat 9 and the peripheral part on an exhaust valve (7) side of the air supply valve 6, is closed by the mask-wall 8a for the entire period of valve-opening of the air supply valve 6. With this contrivance, since the value-diameter of the exhaust valve 7 can be made larger, both dimension and shape of the air supply valve 6 and the exhaust valve 7 can substantially be made the same. As a result, the maximum number of revolutions of an engine can be increased.

公开(公告)号：JPH01138317A

公开(公告)日：1989-05-31

申请号：JP29598187

申请日：1987-11-26

Applicant: TOYOTA MOTOR CORP

Inventor： TANAHASHI TOSHIO ,  ITO TOSHIO ,  KANAMARU MASANOBU ,  ITO KAZUHIRO

IPC: F02B25/00 ,  F02B25/20 ,  F02B75/02

Abstract: PURPOSE:To reduce the inflow resistance of fresh air with inflow increased, and thereby contrive an improvement of the output power of an engine by eliminating both the periphery section of the inner wall surface of a cylinder head and the periphery section of the top section of a cylinder bore across respective whole circumferences. CONSTITUTION:A concave groove 5 is formed in the inner wall surface 3a of a cylinder head 3, and plural numbers of sections 3b and 3c are thereby formed. And the respective sections 3b and 3c are connected with each other via a periphery wall 8 of the concave groove 5. In this case, a pair of intake valves 6 and a pair of exhaust valves 7 are arranged at the both sides of the periphery wall 8 respectively. And the periphery wall 8 is formed with mask walls 8a extending circularly along the periphery section of the intake valves 6 and with a fresh air guide walls 8c formed between the circumferential wall of a combustion chamber 4 and the intake valves 6. Furthermore, the periphery section 13 of an inner wall surface 3a and the top periphery section 14 of a cylinder bore 1a are eliminated across respective whole circumferences.

公开(公告)号：JPS63208635A

公开(公告)日：1988-08-30

申请号：JP4147487

申请日：1987-02-26

Applicant: TOYOTA MOTOR CORP

Inventor： EINAGA HIDEO ,  NOGUCHI HIROSHI ,  UMEHANA TOYOICHI ,  HIROSE KATSUHIKO ,  TANAHASHI TOSHIO ,  ITO TOSHIO ,  KANAMARU MASANOBU

IPC: F02D41/02 ,  F02B25/20 ,  F02B75/02 ,  F02D23/02 ,  F02D41/00 ,  F02D41/34

Abstract: PURPOSE:To obtain optimum engine performance, by stopping an injector in the side of setting an intake control valve even when it is opened when an engine is in predetermined operation, in case of the engine which respectively provides the intake control valve in one of the two intake ports further the injector in both the intake ports. CONSTITUTION:A two-cycle internal combustion engine provides two intake ports 20a, 20b in one cylinder. And the engine respectively provides an intake control valve 36 in one of the intake ports 20a, 20b further fuel injectors 38a, 38b in both the intake ports. Here the engine provides a switching means 4 which, in accordance with opening and closing of the intake control valve 36, switches the first and second forming means 2, 3 respectively forming a fuel injection signal to the first fuel injector 38a or the first and second fuel injectors 38a, 38b. While a gate means 6, which actuates a switching means 4 so as to operate the first fuel injection signal forming means 2 when a means 5 detects the engine to be in a specific operative condition opening the intake control valve 36, is provided.