Abstract: A recirculating valve according to the present invention comprises a fuel supplying passage in fluid communication with a fuel tank and an engine, a return passage in fluid communication with the engine and the fuel tank, a communication passage in fluid communication with the fuel supplying passage and the return passage. A temperature sensitive displacement portion that is provided in the fuel supplying passage and displaces in accordance with the fuel temperature. An on-off valve closes the communication passage when the fuel temperature in the fuel supplying passage is above a first prescribed temperature, and opens the communication passage when the fuel temperature in the fuel supplying passage is below a second prescribed temperature, in accordance with a displacement of the temperature sensitive displacement portion.

Abstract: A recirculating valve according to the present invention comprises a fuel supplying passage in fluid communication with a fuel tank and an engine, a return passage in fluid communication with the engine and the fuel tank, a communication passage in fluid communication with the fuel supplying passage and the return passage. A temperature sensitive displacement portion that is provided in the fuel supplying passage and displaces in accordance with the fuel temperature. An on-off valve closes the communication passage when the fuel temperature in the fuel supplying passage is above a first prescribed temperature, and opens the communication passage when the fuel temperature in the fuel supplying passage is below a second prescribed temperature, in accordance with a displacement of the temperature sensitive displacement portion.

Abstract: A fuel-effusion prevention valve according to the invention includes a case in which an open portion is formed and which is mounted inside a fuel tank; and a valve seat which is formed in open portion; and a float which is formed with a valve body positioned to engage the valve seat to close the open portion of the valve seat, and at least one communicating passage that extends from a top surface to a bottom surface of the float, and the float moves freely up and down within the case.

Abstract: An evaporative gas control valve structure includes a casing which is attachable to a fuel tank. A float is disposed in a space formed in the casing, and is movable upward and downward in the space formed in the casing. A valve element is provided on an upper portion of the float. A ventilation passage is provided on a downstream side of the valve element. In addition, a ventilation hole is formed below the casing, and allows communication between the space in the casing and an inside of the fuel tank, and introduces fuel in the fuel tank into the space. A tortuous passage which suppresses a flow of the fuel is provided between the float and the ventilation hole.

Abstract: The invention is to offer a fuel tank for automobiles characterized by arranging a flange which is provided together with a pump holder for holding a fuel pump and a pipe shaped fuel supply hole.

Abstract: A dielectrically separated wafer and a fabrication method of the same are provided according to the first, second and third embodiments of the present invention. According to the first embodiment, it becomes possible to expand the device fabrication surface area of the dielectrically separated silicon islands by laminating a low concentration impurity layer including a dopant of the same conductivity on a high concentration impurity layer formed on the bottom of the island. According to the second embodiment, a dielectrically separated wafer and a fabrication method for the same which can grow a polysilicon layer without producing voids in the dielectrically separating oxide layer is provided by forming a seed polysilicon layer at low temperature and under low pressure and by forming, on the seed polysilicon layer, a high temperature polysilicon layer 16.

Abstract: An object of the present invention is to provide a shelf apparatus for a showcase in which work labor can be lessened and a shelf support can be installed at a proper position easily in performing the work for changing a space between shelves or the number of tiers of shelf. In the shelf apparatus for a showcase including a shelf plate on which commodities are placed, a shelf support for supporting the shelf plate, and a connecting member which connects the shelf plate to the shelf support and enables the shelf plate to slide in the depth direction, either one of the connecting member and the shelf plate has a locking wire, and the other thereof has a locking groove which the locking wire can be locked to and unlocked from. When a space between shelves or the number of tiers of shelf is changed, the locking wire is unlocked from the locking groove, by which the shelf plate is removed from the connecting member and the shelf support, so that the shelf apparatus is separated into two parts.

Abstract: A fuel vapor treating apparatus includes a lower valve casing and an upper valve casing. A float is provided in the lower valve casing and a valve portion is provided in the float for sealing the flow of fuel. A valve port is provided between the lower valve casing and the upper valve casing and is opened and closed by the valve portion. A vent passage portion is provided in the upper valve casing. A space portion is provided between the vent passage portion and the valve port. A valve portion of the float moves vertically in accordance with a liquid level in a fuel tank and opens and closes the valve port, whereby the fuel tank is brought into communication with the vent passage portion. A vent port is provided in a partition that separates the space portion from the vent passage portion. And, a second float is provided to open and close the vent port. The fuel vapor treating apparatus reliably stops fuel leakage from the fuel tank.

Abstract: A dielectrically separated wafer and a fabrication method of the same makes it possible to expand the device fabrication surface area of the dielectrically separated silicon islands by laminating a low concentration impurity layer including a dopant of the same conductivity on a high concentration impurity layer formed on the bottom of the island. A dielectrically separated wafer and a fabrication method for the same which can grow a polysilicon layer without producing voids in the dielectrically separating oxide layer includes forming a seed polysilicon layer at low temperature and under low pressure and by forming, on the seed polysilicon layer, a high temperature polysilicon layer.

Abstract: In the fuel evaporative emission controller, mounting of the piping is simplified, and the amount of piping such as rubber hoses is minimized, reducing the cost and the fuel permeation. The fuel evaporative emission controller includes a valve structure integrating a fuel-level sensing valve and a fuel cut valve. It further includes a vent line and an evaporate line both provided in the valve structure. In the fuel evaporative emission controller having the vent line connected to the canister, the valve structure has an opening for communicating the vent line and evaporate line with each other.

Abstract: An evaporative emission control system is provided which includes an upper valve casing defining a vent conduit, a lower valve casing disposed under the upper valve casing, and a float disposed within the lower valve casing. The float is vertically movable depending upon a liquid level of fuel in a fuel tank, and includes a valve portion that faces the upper valve casing. A valve port formed between the upper valve casing and the lower valve casing is opened and closed by the valve portion of the float. The upper valve casing defines a space between the vent conduit and the valve port. A flow restricting device is disposed in the space of the upper valve casing so as to obstruct flow of fuel from the valve port to the vent conduit.

Abstract: A dielectrically separated wafer and a fabrication method of the same are provided according to the first, second and third embodiments of the present invention.

Abstract: A fuel vapor treating apparatus includes a lower valve casing and an upper valve casing. A float is provided in the lower valve casing and a valve portion is provided in the float for sealing the flow of fuel. A valve port is provided between the lower valve casing and the upper valve casing and is opened and closed by the valve portion. A vent passage portion is provided in the upper valve casing. A space portion is provided between the vent passage portion and the valve port. A valve portion of the float moves vertically in accordance with a liquid level in a fuel tank and opens and closes the valve port, whereby the fuel tank is brought into communication with the vent passage portion. A vent port is provided in a partition that separates the space portion from the vent passage portion. And, a second float is provided to open and close the vent port. The fuel vapor treating apparatus reliably stops fuel leakage from the fuel tank.

Abstract: An evaporative emission control system is provided which includes an upper valve casing defining a vent conduit, a lower valve casing disposed under the upper valve casing, and a float disposed within the lower valve casing. The float is vertically movable depending upon a liquid level of fuel in a fuel tank, and includes a valve portion that faces the upper valve casing. A valve port formed between the upper valve casing and the lower valve casing is opened and closed by the valve portion of the float. The upper valve casing defines a space between the vent conduit and the valve port. A flow restricting device is disposed in the space of the upper valve casing so as to obstruct flow of fuel from the valve port to the vent conduit.

Abstract: A rotational speed-detecting device of the present invention drives a sensor means 11, which includes a detecting unit that connects magneto-electric elements in series. A comparison voltage generator connects comparison voltage resistors in series, and is connected in parallel with the detecting unit, with a constant voltage by a constant-voltage control means 13, to which constant voltage is supplied by a constant-voltage generating means 14. The constant voltage means 14 controls a constant current of the constant-current means 15 with an on-and-off output from a comparison means 12 so as to superpose and flow a rectangular wave current in a power supply line between Vcc and VR.

Abstract: A fuel vapor control apparatus halts deterioration in operating characteristics of a fuel control valve at the time of fuel supply and prevents fuel vapor from being discharged into the atmosphere through a filler pipe. The fuel vapor control apparatus prohibits fuel vapor from flowing toward a filler pipe by closing a fuel drop passage at the time of fuel supply. A fuel vapor control valve is configured as a diaphragm valve made of a flexible material, and a diaphragm holder moving integrally with the diaphragm valve is provided at the center thereof. Furthermore, the fuel drop passage as a communication hole is formed in the diaphragm portion at a location radially outward of the diaphragm holder, which is provided with an umbrella portion for opening and closing the fuel drop passage.

Abstract: A stop valve structure that is accommodated in a fuel tank includes a casing, a float disposed inside the casing for reciprocating movement within the casing, a bottom wall defining a lower end of the casing, at least one hole provided along the periphery of the bottom wall, and a valve opening that is selectively opened and closed by the reciprocating movement of the float within the casing in accordance with a liquid fuel level within the casing. The float is provided with a tapered portion at the lower end thereof which becomes smaller in diameter toward the lower end of the casing. The float is further provided with a valve seat in an upper portion thereof. A valve mounting portion is disposed inside the casing and a valve element is mounted to said valve mounting portion. The valve seat cooperates with the valve element to selectively open and close the valve opening. These features ensure the operational stability and smoothness of the stop valve.

Abstract: The present invention relates to a magnetic signal detection apparatus utilizing a ferromagnetic thin film magneto-resistive element which produces a maximum output of high linearity with an optimum direction of magnetization of the thin film magneto-resistive element by a small biasing magnetic field. A biasing magnetic field Hb is applied at an angle of approximately 56.degree. to a direction of a current I along a longitudinal direction of a thin film magneto-resistive element (2) on a substrate (1) to make a direction of magnetization M to approximately 45.degree. to attain a highly linear output between power supply terminals (4, 5).

Abstract: In a multilayer printed-circuit substrate comprising a plurality of insulating resin layers, a plurality of metal-made electrically conductive circuits respectively laminated between the insulating resin layers and on the upper surface of the uppermost-positioned insulating resin layer and electrically conductive portions for respectively electrically connecting adjacent upper- and lower-positioned conductive circuits to each other, the insulating resin layers except at least the lowest-positioned insulating resin layer have flexibility, and blackening-treated films prepared by applying blackening treatment to the surface of the respective electrically conductive circuits are respectively provided between the upper surfaces of the conductive circuits and the insulating resin layers laminated thereon.

Abstract: In a multilayer printed-circuit substrate comprising a plurality of insulating resin layers, a plurality of metal-made electrically conductive circuits respectively laminated between the insulating resin layers and on the upper surface of the uppermost-positioned insulating resin layer and electrically conductive portions for respectively electrically connecting adjacent upper- and lower-positioned conductive circuits to each other, the insulating resin layers except at least the lowest-positioned insulating resin layer have flexibility, and blackening-treated films prepared by applying blackening treatment to the surface of the respective electrically conductive circuits are respectively provided between the upper surfaces of the conductive circuits and the insulating resin layers laminated thereon.