-
公开(公告)号：JP2001313916A
公开(公告)日：2001-11-09
申请号：JP2000128251
申请日：2000-04-27
Applicant: DENSO CORP
Inventor： MINAGAWA KAZUJI , TSUJI KIMIO
Abstract: PROBLEM TO BE SOLVED: To provide a conference system using a meeting terminal with a personal computer, with which many persons can use one set of a meeting terminal easily. SOLUTION: A sound signal from a plurality of microphones 20-25 and a sound signal from a video device 70 are synthesized by a mixer (speech synthesis means) 30, and are inputted in the personal computer(PC) 10 as the meeting terminal. The synthesized sound signal is transmitted to other conference systems through a communication line from the PC 10. Besides, the video signal outputted from the PC 10 is projected by a projector 80 on an external screen 90.
-
公开(公告)号：JPH1047189A
公开(公告)日：1998-02-17
申请号：JP20089996
申请日：1996-07-31
Applicant: DENSO CORP
Inventor： MINAGAWA KAZUJI , OI KIYOTOSHI
Abstract: PROBLEM TO BE SOLVED: To realize a stable fuel pressure control which supresses the affection due to the deterioration with time of the fuel pump in a fuel supplying device which electrically controls the fuel pump. SOLUTION: Only when the cumulative driving time exceeds 500 hours and the travelling is steady-state, the sequence goes to the Step 107, the air/fuel ratio detected by the air/fuel ratio sensor is read in and, in the following Step 108, a judgement is made whether the air/fuel ratio is more rich or leaner than the target air/fuel ratio. When the air/fuel ratio is more rich than the target air/fuel ratio, the duty ratio Duty (%) which determines the control current value of the fuel pump is offset by C toward a fuel pressure reduction direction (Step 109) to reduce the fuel injection quantity for correcting the air/fuel ratio from rich to stoichiometric side. When the air/fuel ratio is leaner than the target air/fuel ratio, the duty ratio Duty is offset by C toward a fuel pressure increase side (Step 110) to increase the fuel injection quantity for correcting the air/fuel ratio from lean to stoichiometric side.
-
公开(公告)号：JPH09250418A
公开(公告)日：1997-09-22
申请号：JP6233596
申请日：1996-03-19
Applicant: DENSO CORP
Inventor： MINAGAWA KAZUJI , OI KIYOTOSHI
Abstract: PROBLEM TO BE SOLVED: To maintain a predetermined fuel pressure in a fuel injection valve even in the case of fluctuation in pressure loss of a fuel filter on the way of a fuel pipeline without a return pipeline. SOLUTION: Fuel, which is discharged from a fuel pump 10 through a fuel filter 13 on a low pressure side inside a fuel tank 1, is supplied toward an internal combustion engine from a fuel injection valve 6 through a fuel filter 20 on a high pressure side, a fuel pipeline 2 and a fuel rail 5 after its pressure is regulated by a pressure regulator 40. A valve opening pressure of the pressure regulator 40 is set to be higher than a filter pressure loss after deterioration of the fuel filter 20 on the high pressure side. A fuel pressure downstream of the fuel filter 20 on the high pressure side is fed back to a spring chamber 41b of the pressure regulator 40 as a back pressure. Consequently, even if the pressure loss of the fuel filter 20 on the high pressure side is increased, a fuel pressure inside a pipe 57 is increased by the pressure loss, thus compensating a predetermined fuel pressure with respect to the fuel injection valve 6.
-
公开(公告)号：JPH09166059A
公开(公告)日：1997-06-24
申请号：JP16203896
申请日：1996-06-21
Applicant: DENSO CORP
Inventor： OI KIYOTOSHI , MINAGAWA KAZUJI
Abstract: PROBLEM TO BE SOLVED: To provide a fuel supply device capable of maintaining high fuel pressure so as to control the generation of vapors during the stop of an engine and performing proper fuel injection during the sudden deceleration of a vehicle by a simple structure. SOLUTION: The energizing force of a compression coil spring 14 is set in such a manner that when a pressure difference ΔP between the pressure P1 of fuel flowing into the fuel flow-in passage 12a of an inlet pipe 12 and the pressure P2 of fuel flowing out from the fuel flow-out passage 13a of an outlet pipe 13 reaches specified pressure Pc, a shaft part 17 is moved to a fuel upstream side against the energizing force of the compression coil spring 14 and a valve member 18 is seated in a valve seat part 12d. Thus, since communication between the fuel flow-in passage 12a side and the fuel flow-out passage 13a side is shut off, the pressure P1 of fuel flowing into the fuel flow-in passage 12a and the pressure P2 of fuel flowing out from the fuel flow-out passage 13a are maintained at values different from each other.
-
公开(公告)号：JPH09151823A
公开(公告)日：1997-06-10
申请号：JP30873195
申请日：1995-11-28
Applicant: DENSO CORP
Inventor： MIWA MAKOTO , YOSHIUME NAOKI , OI KIYOTOSHI , MINAGAWA KAZUJI , TAKEUCHI SHIGERU , ANDO AKIRA
Abstract: PROBLEM TO BE SOLVED: To improve startability and emission by a method wherein a fuel pressure increase rate during the starting of an engine is increased and the occurrence of fuel pressure overshoot is suppressed. SOLUTION: During starting, the number Np of revolutions of a fuel pump is compared with the first given number Np1 of revolutions (step 105). In a case of Np
-
Patent Agency Ranking
公开(公告)号：JP2000260458A
公开(公告)日：2000-09-22
申请号：JP5812799
申请日：1999-03-05
Applicant: DENSO CORP
Inventor： ITO YOSHIHIKO , MINAGAWA KAZUJI
Abstract: PROBLEM TO BE SOLVED: To provide a fuel cell system for which stack humidifying parts for humidifying a hydrogen-containing fuel gas and the introduced air does not need to be expanded in order to keep water saturated in a solid high-polymer electrolyte film. SOLUTION: This PEFC fuel cell system A is provided with: a fuel cell stack 1 composed by alternately stacking unit cells each formed by tightly arranging a fuel electrode and an oxidizer electrode on respective surfaces of a solid high-polymer electrolyte film, and separators; and stack humidifying parts 2, 3 for humidifying the introduced air and a hydrogen-containing fuel gas in order to keep water saturated in the solid high-polymer electrolyte film; and performs power generation by means of an electrochemical reaction between the electrodes of each of the unit cells. In this case, an oxygen enrichment device 4 employing a pressure swing adsorption method for performing gas separation by repeating an adsorption process and a removal process is added to the system, and the oxygen-enriched air increased in oxygen concentration by the oxygen enrichment device B is fed to an air introduction port 28 of the stack humidifying part 2.
-
公开(公告)号：JPH09310648A
公开(公告)日：1997-12-02
申请号：JP3040897
申请日：1997-02-14
Applicant: DENSO CORP
Inventor： MINAGAWA KAZUJI , MIWA MAKOTO , OI KIYOTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a fuel filter which can supress pressure increase at a fuel supplying portion thereof in spite of a simple structure of the fuel filter. SOLUTION: Fuel from an inlet chamber flows through a filter element 124 and separately flows into first and second outlet chambers 33 and 35 having a partition wall 24 therebetween, preventing the fuel from being mixed. Moreover, the filter element 124 is comprised of a honeycomb filter respective through holes of which are separated by diaphragms, causing little fuel to flow in peripheral direction, so that fuel flowing through the filter element also generally separated to flow through first and second filter portions 124b and 124c. Controlling the diameter of an orifice 36 to be about 0.5mm, fuel flowing into a fuel filter 120 may mainly pass through the first filter portion. Foreign matters in the fuel is mainly filtered by the first filter portion 124b allowing the second filter portion 124c to have little foreign matters accumulated thereon, causing pressure rise in the second filter portion 124c to be restrained.
-
公开(公告)号：JPH11148851A
公开(公告)日：1999-06-02
申请号：JP9730398
申请日：1998-04-09
Applicant: DENSO CORP
Inventor： KATO TAKAHIKO , MIWA MAKOTO , ISOMURA SHIGENORI , MURAMATSU TOSHIHIKO , MINAGAWA KAZUJI , MATSUDA TAKESHI
IPC: B60K15/03 , B60K15/04 , B60K15/077 , F02M25/08 , G01F1/00 , G01F1/10 , G01F1/115 , G01F9/00 , G01F15/075 , G01F22/00 , G01F23/00
Abstract: PROBLEM TO BE SOLVED: To provide a remaining fuel gange for automobile which can measure the remaining amount of fuel in a fuel tank with accuracy even when the fuel tank has a flat or complicated shape without utilizing such a sensor as a level gauge, etc., which detects the level fluctuation of the fuel. SOLUTION: A remaining fuel gange 1 is constituted of fuel amount sensor 5 which measures the amount of the fuel fed to a fuel tank 11, a control circuit 7 which stores the remaining amount of the fuel in the tank 11 and calculates the remaining amount of the fuel in the tank 11 from the stored remaining amount of the fuel, the output of the sensor 5, the amount of the fuel injected from a fuel injection valve 14, and the purged amount of the fuel in the tank 11 by evaporation, and a fuel meter 6 which visually indicates the remaining amount of the fuel in the tank 11 updated by means of the control circuit 7.
-
公开(公告)号：JPH1130157A
公开(公告)日：1999-02-02
申请号：JP7012098
申请日：1998-03-19
Applicant: DENSO CORP
Inventor： MURAMATSU TOSHIHIKO , OI KIYOTOSHI , MINAGAWA KAZUJI , MIWA MAKOTO , ISOMURA SHIGENORI
IPC: B60K15/01 , B60K15/077 , F02M25/08 , F02M37/00
Abstract: PROBLEM TO BE SOLVED: To decrease the capacity of a canister as well as to decrease the adverse effect of evaporation fuel to operating performance and exhaust gas purification by controlling tank internal pressure. SOLUTION: In a fuel tank internal pressure control system, a pressure adjusting valve 3 is provided on a communication pipe 8 for communicating a fuel tank 1 and a canister 2 with each other. The pressure adjusting valve 3 is controlled through a control circuit 10 so as to be electrified, it is opened to communicate the fuel tank 1 and the canister 2 with each other, and it is closed to seal the fuel tank 1. The control circuit 10 opens the pressure adjusting valve 3 when oil supply is started, and it controls the pressure adjusting valve 3 on the basis of the detected value of an internal pressure sensor 13 so as to be electrified so that tank internal pressure may be held in the specified pressure range after oil supply is finished. When that leakage is generated is judged after leak check of the whole system is performed, the pressure adjusting valve 3 is closed to seal the fuel tank 1 after negative pressure is introduced into the fuel tank 1, and whether the cause of leak is on the fuel tank 1 side or the pipe side is judged.
-
公开(公告)号：JPH10318051A
公开(公告)日：1998-12-02
申请号：JP12744197
申请日：1997-05-16
Applicant: DENSO CORP
Inventor： MURAMATSU TOSHIHIKO , MINAGAWA KAZUJI , MIWA MAKOTO , ISOMURA SHIGENORI
Abstract: PROBLEM TO BE SOLVED: To shorten an electric wire so as to eliminate electric noise reducing means (a RC circuit) built into each solenoid valve by arranging a control circuit for controlling each solenoid valve around a fuel tank. SOLUTION: A pressure regulating valve 3 for holding tank inner pressure within a predetermined pressure range is arranged in a communicating pipe 8 for communicating a fuel tank 1 and a canister 2 with each other, and a purge control valve 12 for regulating a purge flow rate is arranged in a purge pipe 11 for communicating the canister 2 and an intake pipe in an engine with each other. A canister opening/closing valve 9 for opening/closing an atmosphere hole is installed on the canister 2. The pressure regulating valve 3, the purge control valve 12, and the canister opening/closing valve 9 are current-carrying out controlled by a control circuit arranged in the fuel tank 1. The control circuit 10 is connected to an engine control device 18 for controlling an operating condition of the engine through an electric wire, and a signal which is necessary for control is outputted/inputted between the control circuit 10 and the engine control device 18.
-
-
-
-
-
-
-
-
-
Search Results
18
records
(took 0.013 seconds)
