Abstract: An internal gear oil pump made of Al alloys having less mutual damage property and superior wear resistance is provided. The internal gear oil pump has a casing with a gear compartment, a drive gear, and a driven gear, all of which are the structural members of the internal gear oil pump. The casing is constituted of an Al-alloy casting. The drive gear and the driven gear are constituted of a hot plastic working material of Al—Si alloy powder. The hot plastic working material is constituted of an Al—Si alloy having a structure in which unit crystal phases are dispersed in a base matrix by 10 to 40 area percent. by the structural observation with an optical microscope, the unit. crystal phases being harder than the base matrix. The base matrix is constituted of an Al—Si alloy which contains, on weight basis, 10% to 18% Si, 4% to 8% Fe, 1% to 3% Ni, 1% to 3% Cr, and the balance being Al and incidental impurities.

Abstract: A fuel cell system 10 of the present invention comprises a fuel cell 11, an ejector 15 which mixes an exhaust gas exhausted from the fuel cell 11 with a fuel gas, and circulating this mixed gas to the fuel cell 11, and a fuel humidifying section 16 for bringing the exhaust gas exhausted from the fuel cell 11 into contact with the fuel gas which is made to flow out from the ejector 15, via a water permeable membrane, to thereby humidify the fuel gas by the water content contained in the exhaust gas. The fuel humidifying section 16 is arranged between the fuel cell 11 and the ejector 15.

Abstract: A humidifier for fuel cell of the present invention comprises a hollow fiber membrane module in which a hollow fiber membrane bundle, comprising hollow fiber membranes bundled together, is accommodated inside a housing. The module comprises an entrance head which supplies off-gas inside the hollow fiber membranes, an exit head which converges off-gas, which has passed through the hollow fiber membranes, at another end of the hollow fiber membrane module, and an exhaust exit which exhausts liquid, accumulated in the entrance head. According to this humidifier, it is possible to prevent the hollow fiber membranes from becoming blocked by water.

Abstract: A small and simple humidifier comprised of at least one hollow fiber membrane module formed by inserting into a cylindrical housing, both ends of which are opened, a bunch of water-permeable hollow fiber membrane along the axis of said housing, fixing both ends of said bunch at the outer circumference sides onto both ends of said housing at the inner circumference sides by means of a resin to thereby block the ends of said housing so as to form a plurality of peripheral apertures which are communicated within said housing at several intervals in the circumferential direction, a first passage which allows gas for flowing from one ends of said peripheral apertures to the other ends thereof serving as an inlet and an outlet, and a second passage which allows gas for flowing from one end to the other end of the bunch of said hollow fiber membrane, and what is more, in aforementioned, said first passage and said second passage being sectioned by a plurality of overlapped plates in a dent state.

Abstract: A conventional service providing method involves such disadvantages that provision of efficient services cannot be assured in respect of a client, who was connected with a front-end, and that a cost for developing a server is very expensive, besides a cost for administering the service is expensive.

Abstract: A humidifier having a plurality of water-permeable hollow fiber membranes placed along the lengthwise direction of a housing accommodated within the housing in which gases each having a different moisture content flow inside and outside said hollow fiber membranes to carry out moisture exchange whereby the dry air having a low moisture content is humidified is disclosed. The said humidifier (1) comprises a gas inlet formed on an end of the lengthwise direction of the housing, (2) has a construction for generating a turbulent flow provided on the inner surface of said housing, or (3) has a construction for generating a turbulent flow provided within the hollow fiber membranes.

Abstract: A humidifier having a plurality of water-permeable hollow fiber membranes placed along the lengthwise direction of a housing accommodated within the housing in which gases each having a different moisture content flow inside and outside the hollow fiber membranes to carry out moisture exchange whereby the dry air having a low moisture content is humidified is disclosed. The humidifier comprises a bypass channel having a larger diameter than that of the hollow fiber membrane, in which the gas flowing outside the hollow fiber membrane, formed on an approximately central portion of the cross-lengthwise direction of the housing along the lengthwise direction of the housing, and an inlet which introduces the gas flowing outside the hollow fiber membrane into the housing and an outlet which discharges the gas flowing outside the hollow fiber membrane formed on the bypass channel.

Abstract: The invention offers a humidifier consisting of a housing accommodating a large number of water permeable hollow fiber membranes arranged along the longitudinal direction of the housing and two different gasses having different moisture contents pass through outside and inside of the bundle of the hollow fiber membranes separately to exchange their moistures through the hollow fiber membranes and the dry gas of lesser moisture content is humidified. By applying such a heating means the humidifier can be used even in colder territory.

Abstract: A fuel cell humidification system is provided capable of operating the fuel cell at the optimum dew-point state when the fuel cell 1 is restarted. The fuel cell system having a humidification apparatus 6 for humidifying dry air by a water content in an discharge gas after the reaction in the fuel cell comprises an air supply line 3 for supplying dry air to the fuel cell and an gas discharge line 5 for discharging the discharge gas from the fuel cell, and the humidification apparatus 6 is provided across these air supply line and the gas discharge line. A communication line is also provided so as to be able to form a closed loop between the air supply line and the gas discharge line. When the fuel cell is stopped, the closed loop is maintained. When the fuel cell is restarted, the supercharger 17 and the heater 21 are activated for circulating the air in the closed loop and for raising the air temperature, and, after adjusting the dew-point, the fuel cell 1 converted into the normal load operation.

Abstract: A combustion control method for use in a catalytic combustion system having (a) a gaseous mixture inlet port, located at the upstream side of said catalytic combustion system, for the entrance of a fuel-air mixture; (b) an exhaust gas outlet port, located at the downstream side of said catalytic combustion system, for the exit of an exhaust gas; (c) a primary combustion chamber in which a catalyst body is disposed, said catalyst body being formed of a porous base material with numerous communicating holes that supports thereon an oxidation catalyst; (d) a secondary supply port, located downstream of said primary combustion chamber, for the supply of a gaseous mixture or air; and (e) a secondary combustion chamber located downstream of said secondary supply port; comprising such process that an excess air ratio of said primary combustion chamber is initially set above 1 and after the rate of combustion of said secondary combustion chamber exceeds a given level, combustion is made to take place, with the

Abstract: A humidification system for a fuel cell includes a humidifier having a bundled plurality of tube type hollow thread members made of a water permeable membrane. The humidifier transfers a water content contained in a discharge gas, which is emitted from a fuel cell, to a supply gas, which is supplied to the fuel cell, when one of the discharge gas and the supply gas is passed through the inside of the tube type hollow thread members and the other one of the discharge gas and the supply gas is passed through between the tube type hollow thread members. Manometers P1, P2, P3, and P4 detect a difference in pressure of the supply gas and the discharge gas, respectively, between an upper stream side and a down stream side of the humidifier. A determination unit determines a generation of clogging in the humidifier based on detection signals from the manometers.

Abstract: The fuel cell humidifying system is to prevent freezing and clogging of a water permeable type humidifier by providing a gas passage switching device for changing the gas flow paths communicating with the humidifier. To direct the flow of dry air exiting from the supercharger to the exhaust passage in the humidifier, the gas passage switching device includes a first three-way valve, a second three-way valve, a flow adjusting valve and a sweep piping. In this system, water vapor in the humidifier which causes freezing can be swept off by flowing dry air through the exhaust gas passage in the humidifier, and therefore, clogging caused by ice particles which plug up the pores of the hollow thread membrane in the humidifier can be prevented.

Abstract: The humidification system for humidifying a fuel cell of the present invention comprises: a water-permeable-type humidifier for humidifying reaction gas used in reaction with moisture in exhaust gas exhausted after the reaction; and an adjuster for adjusting an amount of humidification to the humidification amount required by the fuel cell.

Abstract: A humidifying system for a fuel cell, the system producing a highly wet air by allowing dry air to pass through a water permeable humidifier, and supplying the highly wet gas to a fuel cell, wherein the humidifying system comprises a supercharger between an inlet for introducing gas into the fuel cell and an outlet for releasing gas from the humidifier. Since the pressure at the inlet of the supercharger is lower than the pressure at the outlet, the flow velocity at the inlet is higher than the flow velocity at the outlet. Therefore, the flow velocity of the dry air which flows inside the humidifier can be increased so as to be higher than the flow velocity in the case where the supercharger 3 is provided between the inlet for introducing gas into the fuel cell and a gas intake opening. Accordingly, the efficiency of humidification is improved, and the sizes of the humidifier and the supercharger can be reduced.

Abstract: A humidifier 21 for use with a fuel cell 1, comprising: a plurality of combined water permeable membranes or water permeable devices 21, each of the water permeable membrane or water permeable device generating humidified gas by flowing therein different gases with different moisture contents and by moisture exchanging between the different gases so that one dry gas with smaller moisture content is humidified with the other moist gas with larger moisture content; and flowing passage switching means Va for optionally switching flowing passages Ca of said dry gas. The flowing passage switching means Va switches the flowing passage Ca in accordance with a required amount of said humidified gas so as to selectively use particular water permeable membranes or a particular water permeable device 21 from among the plurality of water permeable membranes or water permeable devices 21.

Abstract: An agent identification device that identifies an agent device that dynamically transmits a program to another agent device by flexibly dealing with various managed functions and changes in condition of a network supplied by the agent device. The agent identification device includes a retrieval rule evaluation section and a communication address retrieval section. The retrieval rule evaluation section has the function of deriving the identifier of an agent device to which a program is next transmitted, based on input data, and the function of storing a retrieval rule being a program for deriving the identifier of the agent device and information used to evaluate the retrieval rule.

Abstract: A catalytic combustor utilizes radioactive heat with a high efficiency, has a radiation wavelength distribution rich in visible ray components, and is excellent in complete combustibility and visual confirmability even in a standby combustion condition. The present invention forms a thin film coat of metal or metal oxide which transmits rays having short wavelengths and reflects rays having long wavelengths on a surface of a transmission window disposed opposite to an upstream surface of a catalyst body. The catalyst body is composed of a metal wire structure having a high aperture ratio and is disposed in a combustion chamber. Furthermore, an auxiliary catalyst body which has a high aperture ratio and a small capacity is disposed in the vicinity of a mixed gas injection port at a location in contact with the mixed gas when the flow rate of the mixed gas is less than a predetermined value.

Abstract: A remote execution system having a program receiver (server system) capable of receiving a program describing a flow of a complicated processing having a control structure such as branches and repeats from a client system C1, C2 or C3 and performing a remote execution of the program on its own. In the server, the program receiver receives a program sent from a client system C1, C2 or C3 and transfers the received program to a dynamic binding processing section including a link authority inspector and a specific operational object linker. After receiving the client system names from the program receiver, the link authority inspector inspects whether or not the client system C1, C2 or C3 has link authority. When the client system C1, C2 or C3 has the link authority, the specific operational object linker dynamically links specific operational objects to process operation names written in the program.

Abstract: Upon receiving a program S1 from a manager device M1, a program execution section 2 starts executing the program S1 and calls an API by linking an enhanced operational object EO1. The enhanced operational object EO1 executes the called API. When access to a managed object MO1 is required, the API supplied by a primitive operational object PO1 is called. The primitive operational object PO1 executes the API, accesses the managed object MO1 and returns the result to the enhanced operational object EO1. The enhanced operational object EO1 returns the result to the program S1. The program execution section 2 returns the execution result of the program S1 to the manager device M1.

Abstract: A zinc oxide-hydroxide complex produced by heating freshly prepared zinc hydroxide at a temperature from about 150.degree. C. to about 450.degree. C. is useful as an adsorbent for malodorous gases such as hydrogen sulfide, mercaptans and the like. The complex alone or its combination with aluminum dihydrogen tripolyphosphate may be incorporated into a synthetic thermoplastic resin for fabricating shaped plastic articles for deodorant uses.