专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JP2002333097A FUEL TANK FOR LIQUEFIED GAS AND CONTROLLER FOR INNER PRESSURE OF TANK 失效
公开(公告)号：JP2002333097A
公开(公告)日：2002-11-22
申请号：JP2001139069
申请日：2001-05-09
申请人： NIPPON SOKEN , DENSO CORP
发明人： GOTO MORIYASU , ENOMOTO SHIGEIKU , KATO MASAAKI , TAKEUCHI HISAHARU
IPC分类号： B60K15/03 , F02B43/00 , F17B1/013 , F17C7/00
摘要： PROBLEM TO BE SOLVED: To properly pressurize and hold the inner pressure of a tank while simplifying a constitution. SOLUTION: A piston 11 is slidably stored in a fuel tank 1, and the fuel tank 1 is divided into a fuel chamber 12 and a heating chamber 13 by the piston 11. The fuel piping 2 is connected to the fuel chamber 12, and the liquefied gas fuel in the fuel chamber 12 is fed to a high-pressure pump 3 through the fuel piping 2. The heating chamber 13 is filled with a predetermined amount of fuel, and a heater 15 is mounted in a state of being soaked in the fuel. In this constitution, when the heater 15 in the heating chamber 13 is energized, the fuel in the heating chamber 13 is vaporized in accompany with the rise of a fuel temperature, and the pressure of the heating chamber 13 is raised. Whereby the piston 11 starts moving to a fuel chamber 12 side (right side in drawing). As the pressure of the heating chamber 13 is saturated vapor pressure of the fuel, and the fuel in the fuel chamber 12 is pressurized to the pressure same as that in the heating chamber 13.

52. 发明专利

JP2004011529A AXIAL DISPLACEMENT REGULATOR 审中-公开
公开(公告)号：JP2004011529A
公开(公告)日：2004-01-15
申请号：JP2002166056
申请日：2002-06-06
申请人： NIPPON SOKEN , DENSO CORP
发明人： GOTO MORIYASU , ENOMOTO SHIGEIKU , KATO MASAAKI , TAKEUCHI HISAHARU
IPC分类号： F02M61/16 , F02M51/06
摘要： PROBLEM TO BE SOLVED: To realize high sealability without increasing the size of a regulator of the displacement in the axial direction even when the pressure of a fluid in contact with a moving member is high, the work fluid reaches super-critical, or the work fluid reacts with an elastomer. SOLUTION: A center hole 11a and an assembly hole 11b are formed in a spacer 11, and an outer circumferential edge part 11c is continuous around the entire circumference without any cuts. Regarding the assembly, a flanged part 15b of a needle valve 15 is inserted in the assembly hole 11b, a small diameter part 15c is inserted in a center of a spacer 11, and assembled in a nozzle body 12 as it is. Thereafter, the small diameter part is assembled in a small diameter cylindrical part 2d of a housing 2 to tighten a retaining nut 14. As a result, the outer circumferential edge part 11c of the spacer 11 is firmly held by the housing 2 and the nozzle body 12 to form a highly rigid seal structure. High sealability is ensured even when a liquefied gas is used for the work fluid. COPYRIGHT: (C)2004,JPO

53. 发明专利

JP2003214287A FUEL INJECTION DEVICE 审中-公开
公开(公告)号：JP2003214287A
公开(公告)日：2003-07-30
申请号：JP2002014338
申请日：2002-01-23
申请人： NIPPON SOKEN , DENSO CORP
发明人： ENOMOTO SHIGEIKU , GOTO MORIYASU , KATO MASAAKI , TAKEUCHI HISAHARU
IPC分类号： F02M21/02 , F02M51/06 , F02M61/20
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection device where a valve member is be directly driven by the electromagnetic driving part and the pressure of the injected fuel is further raised without casing enlargement of the size. SOLUTION: A hole part 20a is formed at the end of the opposite side of the injection hole of the valve member 20, a low pressure chamber 29 formed between the hole part 20a and a rod member 28 is communicated to a fuel tank through the rod member and a communicating hole 281. Pressure of high- pressure DME does not act on the portion corresponding to the area of the end surface 29a of the low pressure chamber 29 at the valve member 20 thereby. The force acting toward closing direction of the injection hole of the valve member 20 is reduced by the pressure of DME. The force acting on the valve member 20 is balanced by making the inside diameter ϕd3 of the hole part 20a the same as the inside diameter ϕd4 of the valve seat part 16. As a result, the force driving the valve element 20 toward the opening direction opening of the injection hole is reduced and the pressure of DME injected from the injection hole 15 is improved without causing enlargement of the size of the electromagnetic driving part 30. COPYRIGHT: (C)2003,JPO

54. 发明专利

JP2002339833A FUEL INJECTOR FOR LIQUEFIED GAS FUEL 失效
公开(公告)号：JP2002339833A
公开(公告)日：2002-11-27
申请号：JP2001144252
申请日：2001-05-15
申请人： NIPPON SOKEN , DENSO CORP
发明人： GOTO MORIYASU , ENOMOTO SHIGEIKU , KATO MASAAKI , TAKEUCHI HISAHARU
IPC分类号： F02M21/02 , F02D41/04 , F02D41/06 , F02D45/00 , F02M37/00 , F02M51/00 , F02M51/06 , F02M55/00 , F02M55/02
摘要： PROBLEM TO BE SOLVED: To provide a fuel injector for liquefied gas fuel having high reliability with the simple constitution. SOLUTION: A high pressure pump 4 is connected to a fuel tank 1 for storing the liquefied gas fuel via a fuel supply pipe 3 so that high pressure fuel is delivered from the high pressure pump 4 in synchronism with operation of an engine. The high pressure fuel is injected from an injector 7 after being accumulated in a common rail 6. The injector 7 particularly uses a leakless structure for eliminating a leak to the low pressure side of the high pressure fuel supplied from the common rail 6. In this case, a processing unit for recovering leak fuel is unnecessary differently from a conventional injector for leaking the high pressure fuel in a pressure control chamber to the low pressure side with every injection. An excess load of the high pressure pump is reduced by the extent of eliminating the leak of the high pressure fuel so that an enlargement of the pump can be restrained.

55. 发明专利

JPH10227265A DISTRIBUTION TYPE FUEL INJECTION PUMP 失效
公开(公告)号：JPH10227265A
公开(公告)日：1998-08-25
申请号：JP3049797
申请日：1997-02-14
申请人： NIPPON SOKEN , DENSO CORP
发明人： UCHIDA KAZUHIDE , MATSUDA MIKIO , SHINOHARA YUKIHIRO , GOTO MORIYASU
IPC分类号： F02M41/14 , F02M59/44
摘要： PROBLEM TO BE SOLVED: To reduce vibrations and sounds produced by a fuel injection pump by improving the rigidity of the belly part of a pump housing by forming in the pump housing a rib of a predetermined length along the axis of a drive shaft in the direction parallel to both ends of a timer piston. SOLUTION: In a distribution type fuel injection pump, when fuel is sent, a distribution roller rotates and goes on the peak of a cam ring to move a plunger in a bore cylinder to the center in the radial direction, whereby the fuel in a compression room is pressurized. At this time, a compressive force is applied to the cam ring to collide the cam ring with a pump housing, whereby sounds are produced. Since vibrations produced in the belly part of the pump housing 10 by such a collision is big on the axis of a drive shaft, a rib 100 having a length of the belly part is formed along the axis of the shaft at the belly part of the pump housing 10 in the direction parallel to both ends of a timer piston 9 to thereby reduce the vibrations.

56. 发明专利

JP2003120443A FUEL SUPPLYING SYSTEM FOR LIQUEFIED GAS FUEL 审中-公开
公开(公告)号：JP2003120443A
公开(公告)日：2003-04-23
申请号：JP2001317688
申请日：2001-10-16
申请人： NIPPON SOKEN , DENSO CORP
发明人： ENOMOTO SHIGEIKU , GOTO MORIYASU , MORITA TETSUO , KATO MASAAKI
IPC分类号： F02M33/08 , B60H1/32 , F02M33/00 , F23K5/00
摘要： PROBLEM TO BE SOLVED: To attain a simple structure and cost reduction as a fuel supply system using liquefied gas fuel. SOLUTION: The liquefied gas fuel in a fuel tank 10 is compressed to a common rail 15 through a low-pressure pump 11 and a high-pressure pump 13, and is then injected into an engine from a fuel injection valve 20. The liquefied gas fuel leaking from the high-pressure pump 13, the common rail 15, and the fuel injection valve 20 is collected into a fuel retrieve tank 17. An air conditioner using the liquefied gas fuel as a refrigerant is provided and the liquefied gas fuel in the fuel tank 10 is discharged from the low-pressure pump 11, and is then returned to the fuel tank 10 through an expansion valve 32, an evaporator 35, the fuel collection tank 17, a compressor 40, a condenser 42 or the like. In this case, the leaking fuel collected in the fuel collection tank 17 is liquefied in the compressor 40 and the condenser 42.

57. 发明专利

JP2003113754A FUEL INJECTION VALVE 审中-公开
公开(公告)号：JP2003113754A
公开(公告)日：2003-04-18
申请号：JP2001307355
申请日：2001-10-03
申请人： NIPPON SOKEN , DENSO CORP
发明人： ENOMOTO SHIGEIKU , GOTO MORIYASU , MORITA TETSUO , KATO MASAAKI , TAKEUCHI HISAHARU
IPC分类号： F02B43/00 , F02M21/02 , F02M51/06 , F02M61/16
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection valve of actuator direct drive type capable of accomplishing a constitution assuring easy and certain maintenance works. SOLUTION: The fuel injection valve 30 includes a casing 31 and a valve body 32 provided with coaxial holes 31a and 32a, in which a rod 34 and a valve element 35 are stored. An armature 39 is fixed to the top of the rod 34. The valve element 35 opens and closes a jet hole 32b in association with movement of the rod 34. A shim 36 for adjusting the gap is interposed between the rod 34 and valve element 35, and in this condition, the members are coupled by a fixture 37 capable of being fixed and removed. If the casing 31 and valve body 32 are disassembled and the fixture 37 is removed, only the valve element 35 excluding the rod 34 can be removed. Accordingly the workability is enhanced when the valve element part is to be replaced after the fuel injection valve 30 has been used for a long period of time.

58. 发明专利

JPH10199723A STATOR FOR SOLENOID 失效
公开(公告)号：JPH10199723A
公开(公告)日：1998-07-31
申请号：JP527497
申请日：1997-01-16
申请人： NIPPON SOKEN , DENSO CORP
发明人： GOTO MORIYASU
IPC分类号： H01F7/06 , H01F7/127 , H01F7/16
摘要： PROBLEM TO BE SOLVED: To improve responsiveness while preventing distortion in a stator in which a plurality of magnetic plates are vertically laminated. SOLUTION: In a stator 4 in which a plurality of magnetic plates 8 is vertically laminated, a step surface 4a lower than a center part by a specified dimension is formed on the peripheral edge part of the top surface thereof. On the outer peripheral surface of the stator 4, a ring 9 is integrated, and the height of the ring 9 agrees with that of the step surface 4a of the stator 4. On the step surface 4a of the stator 4, a hollow and disc-like plate stator 14, acting as a part of a magnetic circuit, is integrated. And the outer diameter of the stator 4 agrees with that of an armature 12. Meanwhile, in a supporting body 10 integrated with the stator 4, a push rod 11 coupled with the armature 12 is placed while sliding in the vertical direction in the figure is allowed. A cap housing 13 press-supports the outer peripheral edge part of the stator, from the upper side, with the plate stator 14 in between.

59. 发明专利

JP2004011448A DECOMPRESSION REGULATING VALVE 审中-公开
公开(公告)号：JP2004011448A
公开(公告)日：2004-01-15
申请号：JP2002162554
申请日：2002-06-04
申请人： NIPPON SOKEN , DENSO CORP
发明人： MAEKAWA HITOSHI , ENOMOTO SHIGEIKU , GOTO MORIYASU , SHINOHARA YUKIHIRO
IPC分类号： F02M55/02 , F02D41/04 , F02D41/22 , F02D45/00 , F02M47/00 , F02M51/00
摘要： PROBLEM TO BE SOLVED: To provide a decompression regulating valve compatibly capable of controlling common rail pressure in all pressure region during steady operation of an engine and of keeping the common rail pressure as sufficient pressure for escaping travel even when coil burnout causes impossible drive of the decompression regulating valve. SOLUTION: The decompression regulating valve is connected between a common rail for a common rail fuel injection system and a return pipe forming a low pressure flow path for returning a fuel from the common rail into a fuel tank via the low pressure flow path during closing the valve to reduce the common rail pressure. It comprises a ball valve 20 as a valve element capable of driving the opening/closing of the low pressure flow path in all pressure region during steady operation with a change in the opening area of the low pressure flow path, a first coil 21 for driving the ball valve 20 in the direction of opening the valve, a second coil 22 for driving the ball valve 20 in the direction of closing the valve, and a spring 23 for energizing the ball valve 20 in the direction of closing the valve. COPYRIGHT: (C)2004,JPO

60. 发明专利

JP2003206825A HIGH PRESSURE PUMP FOR ALTERNATE FUEL 审中-公开
公开(公告)号：JP2003206825A
公开(公告)日：2003-07-25
申请号：JP2002007332
申请日：2002-01-16
申请人： DENSO CORP , NIPPON SOKEN
发明人： KATO MASAAKI , TAKEUCHI HISAHARU , ENOMOTO SHIGEIKU , GOTO MORIYASU
IPC分类号： F02M59/44 , F02M59/38
摘要： PROBLEM TO BE SOLVED: To provide a high pressure pump 1 for alternate fuel for improving an output for a fuel consumption of an internal combustion engine by keeping a suitable force feed amount of DME fuel, by reducing and retrieving the DME fuel leaking from a clearance between a plunger 9 and a cylinder 7. SOLUTION: The DME fuel leaking from a pump chamber 22 between the cylinder 7 and the plunger 9 is decreased in pressure in two high and low stages by a retrieving groove 28 and a seal chamber 32, and is sealed doubly by a high-pressure X-shaped seal 43 and an oil seal 31. Much of the DME fuel passing through the high-pressure X-shaped seal 43 is retrieved from a leak passage to a purge tank in a liquified state. A slight amount of DME fuel leaking from the oil seal 31 to a cam chamber 2a is sealed by a seal 37 for lubricating oil and a seal 38 for fuel, retrieved by the purge tank or the like via a through hole 42 for retrieval, thereby largely reducing external leakage of the DME fuel. COPYRIGHT: (C)2003,JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式