Abstract:
PROBLEM TO BE SOLVED: To provide a heat dissipation structure of an adding valve capable of efficiently dissipating heat of the adding valve.SOLUTION: A heat dissipating structure of an adding valve includes: an adding valve 20 that adds a reducing agent into an exhaust duct 11 of an internal combustion engine; and a heat dissipating member 30 that dissipates heat of the adding valve 20. The heat dissipating member 30 has a housing space 32 for housing the adding valve 20, and the adding valve 20 is housed in the housing space 32. A copper powder 42 is filled between the adding valve 20 and the heat dissipating member 30, in the housing space 32 of the heat dissipating member 30.
Abstract:
PROBLEM TO BE SOLVED: To realize excellent response to load change, in a fuel injection control device for an internal combustion engine equipped with an injector for port injection and an injector for cylinder injection. SOLUTION: In this internal combustion engine 10, the injector 28 for port injection and the injector 22 for cylinder injection are arranged. Total fuel required amount is calculated before start of port injection (injection amount calculation timing), and port injection fuel amount and cylinder injection fuel amount are calculated by appropriately allocating the value of the total fuel required amount. When change in an operating load of the internal combustion engine is detected after the injection amount calculation timing, the change in the load is reflected in the fuel injection amount in the engine cycle by increasing/reducing the cylinder injection fuel amount. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To achieve performance improvement when high output is required during operation of an internal combustion engine having a cylinder injection valve and a port injection valve. SOLUTION: For controlling the internal combustion engine having the cylinder injection valve and the port injection valve with a fuel injection quantity per unit valve open time smaller than the cylinder injection valve, a total fuel injection quantity TAU is calculated based on operation condition of the internal combustion engine (step S101). The TAU is then compared with a minimum fuel injection quantity Q minD which the cylinder injection valve can inject (step S102). When the total fuel injection quantity TAU is smaller than the minimum fuel injection quantity Q minD (step S102; Yes), the total fuel injection quantity TAU is injected by the port injection valve (step S103, step S104). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation:要解决的问题:为了在具有气缸喷射阀和端口喷射阀的内燃机的操作期间需要高输出时实现性能提高。 解决方案:为了控制具有气缸喷射阀和端口喷射阀的内燃机,其燃料喷射量每单位阀打开时间小于气缸喷射阀,基于操作条件计算总燃料喷射量TAU 的内燃机(步骤S101)。 然后将TAU与气缸喷射阀可以注射的最小燃料喷射量Q minD SB>进行比较(步骤S102)。 当总燃料喷射量TAU小于最小燃料喷射量Q minD SB>时(步骤S102;是),总喷射量TAU由喷射阀喷射(步骤S103,步骤S104 )。 版权所有(C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an internal combustion engine to realize various additional functions by simple constitution with a high degree of freedom. SOLUTION: A rotary structure 2 rotatable and partially exposed to a combustion chamber 12 is situated in a cylinder head 13 between a suction valve 31 and an exhaust valve 41. The rotary structure 2 is peripherally partially notched to form a chamber 20. By switching a state that the chamber 20 is communicated with a combustion chamber 12 and a state where it is not communicated with the combustion chamber, an internal combustion engine 1 having a variable compression ratio is realized. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a mixing device capable of inhibiting growth of droplets adhered to blades.SOLUTION: There are provided: an addition valve for spraying urea water as a liquid reducing agent into an exhaust pipe, at the upstream side of an exhaust emission control device for reducing nitride oxide contained in exhaust; and the mixing device for mixing the urea water sprayed by the addition valve and an exhaust gas, at an exhaust gas downstream side of the addition valve. The mixing device has a function of expanding a region where the urea water sprayed by the addition valve is dispersed. Among the respective blades 32 forming the mixing device, at a downstream end 37 of at least one of the blades 32, an oblique side 40 is formed that is inclined so as to be closer to an exhaust gas upstream side nearer a low pressure region 51.
Abstract:
PROBLEM TO BE SOLVED: To provide a crankcase ventilator for an internal combustion engine, efficiently ventilating the inside of a crankcase of the internal combustion engine. SOLUTION: The inside of the crankcase 11 is divided into a plurality of crank compartments 11a-11d with respect to each cylinder 3 having at least a different phase of vertical movement of a piston 4. A fresh air introducing port 43 formed in each of the crank compartments 11a-11d is opened in a position with a counterweight 17 approaching when the piston 4 in the same section as the fresh air introducing port 43 is lowered and with no counterweight 17 approaching when the piston 4 is lifted. A blowby gas discharge opening 44 formed in each of the crank compartments 11a-11d is opened in a position with the counterweight 17 approaching when the piston 4 in the same section as the blowby gas discharge opening 44 is lifted and with no counterweight 17 approaching when the piston 4 is lowered. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suitably absorb impact load in collision of a vehicle by a simple structure. SOLUTION: In this impact absorbing structure of a vehicle, an engine 10 is disposed at the front part of the vehicle. An oil tank 46 demarcating an oil chamber 45 independent of a crank chamber 41 is formed at the bottom of the crankcase 42 of the engine 10. A projecting part 50 forming a part of the oil tank 46 by projecting forward of the vehicle is formed on the oil tank 46. In head-on collision of the vehicle, the projecting part 50 is compressingly deformed to suitably absorb the impact. Since the projecting part 50 is very simple and lightweight, the impact can be absorbed by the simple structure. On the other hand, since the projecting part 50 is a part of the oil tank 46, the height dimension of the oil tank 46 can be suppressed by reducing the volume of the oil tank 46 by the amount of the volume of the projecting part. Consequently, the overall height of the engine can be reduced, the engine can be made compact, the crush stroke can be increased, and the gravity center of the vehicle can be lowered. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce a pressure in a high-pressure fuel line by a simple structure when the collision of a vehicle is detected. SOLUTION: This controller of an internal combustion engine having a fuel injection valve jetting a fuel is characterized by comprising a high-pressure fuel pump, a high-pressure fuel line connecting the high-pressure fuel pump to the fuel injection valve, a collision detection means (S10) detecting the collision of the vehicle on which the internal combustion engine is mounted, and a pressure reduction control means which, when the collision is detected by the collision detection means, stops the supply of the fuel from the high-pressure fuel pump (S12) and jetting fuel from the fuel injection valve. Since the supply of the fuel from the high-pressure fuel pump is stopped when the collision is detected and the fuel is jetted from the fuel injection valve, the pressure of the fuel in the high-pressure fuel line is reduced, and the jetting of the fuel when the high-pressure fuel line is damaged can be suppressed. Particularly, since the pressure is reduced by using the fuel injection valve, the pressure in the high-pressure fuel line can be reduced by the simple structure. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress an increase in cost in appropriately supplying fuel both to a catalytic converter and an igniter from a common fuel adding valve disposed in an exhaust passage in a structure of supplying the fuel to both of them.SOLUTION: A movable collision plate 50 is controlled to realize an opened state in which the movable collision plate 50 interferes with a fuel path from the fuel adding valve 7 and a retreat state in which the plate retreats from the fuel path. In the opened state in which the movable collision plate 50 interferes with the fuel path, supply of the fuel is promoted from a nozzle hole 7a of the fuel adding valve 7 to a glow plug 21, while in the retreat state in which the plate retreats from the fuel path, supply of the fuel to the glow plug 21 is controlled. Therefore, in such a structure that the fuel is supplied to a pre-treatment catalytic converter 8 and the glow plug 21, individual fuel adding valves need not be placed in appropriately supplying the fuel to both, and an increase in cost is suppressed as a result.
Abstract:
PROBLEM TO BE SOLVED: To solve a problem wherein, when an engine provided with a supercharger is in a high-load and low-rotation operation range, blow-by gas cannot be sufficiently ventilated in a state that an engine room is kept at the atmospheric or lower pressure. SOLUTION: A blow-by gas treating device 15 includes a branch passage 24 which has an end communicating with an intake passage 31 upstream of a compressor 17 of the turbo charger 14 and the other end communicating with a further upstream of the intake passage 31, a throttle portion 23 formed in the middle of the branch passage 24, a first ventilation passage 26 communicating with the throttle portion 23 and the engine room 32, and a second ventilation passage 27 communicating with the intake passage 31 downstream of the compressor 17 of the turbo charger 14 and the engine room 32. COPYRIGHT: (C)2010,JPO&INPIT