Abstract: A pressure relief cap includes a body engageable with a container and rotatable about an axis to couple or decouple the body from the container, a handle is coupled to the body and rotatable about the axis in a loosening direction and an opposite, tightening direction and, a ring member coupled for co-rotation with the handle in the loosening direction. The cap includes relief valve assembly coupled to the body. The ring member and the body include a lost motion region in which the ring member is rotatable relative to the body in the loosening direction. Rotation of the ring member relative to the body in the loosening direction in the lost motion region opens the relief valve assembly. Rotation of the ring member in the loosening direction beyond the lost motion region causes the body to co-rotate with the ring member in the loosening direction.

Abstract: A pressure relief cap includes a body engageable with a container and rotatable about an axis for coupling or decoupling the body from the container. The pressure relief cap also includes a handle and a motion control mechanism operable to selectively couple the handle to the body. The motion control mechanism includes a clutch plate moveable between an engaged position in which the clutch plate permits torque transfer from the handle to the body, and a disengaged position in which the clutch plate inhibits torque transfer from the handle to the body. The pressure relief cap also includes a relief valve for releasing pressure in response to elevated pressure within the container.

Abstract: One embodiment of a fuel tank cap and mounting bracket apparatus includes a cap including protrusions on a lower surface of the cap, the protrusions including a raised portion adapted to be received within a recess of a mounting bracket to secure the cap to the mounting bracket. One embodiment of the mounting bracket includes slots to receive the protrusions of the cap and recesses to receive the raised portion of each protrusion. In one embodiment of the mounting bracket the slots and the recesses are surrounded by mounting bracket material on all sides so that the shape of the slots and recesses is protected against deformation during an impact, thereby inhibiting separation of the cap from the mounting bracket.

Abstract: Pressure relief apparatus for use with fuel delivery systems are described herein. An example pressure relief apparatus includes a body defining a cavity and an annular wall projecting from a lower surface of the cavity. A first valve includes a first valve body defining a first flow passage between a first inlet to be oriented toward atmospheric pressure and a first outlet to be oriented toward a fuel tank. The first valve body houses a first flow control member to control fluid flow through the first flow passage between the first inlet and the first outlet. The first valve body projects from the lower surface of the cavity and toward an upper surface of the annular wall a distance substantially equal to a depth between the lower surface and the upper surface of the annular wall.

Abstract: The fuel tank cap with a separated charcoal canister includes a fuel tank cap, a charcoal cap, and a fuel tank outer cap. A filling room is disposed on the charcoal cap, and the upper opening of the filling room is covered by the fuel tank outer cap. The fuel tank cap with a slot is disposed under of the charcoal cap. The fuel tank can be connected in detachable way with either the charcoal cap or fuel tank outer cap. A through orifice is disposed in the center of the fuel tank cap. The through orifice and the filling room filled by fuel-absorption substrate are connected by the first passageway disposed on the charcoal cap. The charcoal canister is a standard product, and it can fit to variable fuel tanks through the variable sized fuel tank cap, thereby both design and manufacturing processes are simplified and costs are saved.

Abstract: A device that stores a low molecular gas, such as hydrogen (H2), under high pressure includes having an inner shell and at least one outer sleeve surrounding the inner shell. The region between the inner shell and the outer sleeve is connected via at least one valve with a backflow prevention capability to the region surrounded by the inner shell. The valve is thereby formed so that low molecular gas which has diffused through the inner shell can flow back into the inner shell when there are suitable pressure conditions.

Abstract: A cap-free closeable neck end for a filler neck of a tank of a motor vehicle, the cap-free closeable neck including an upper entry space forming an insertion region for a fuel nozzle and being surrounded by a side wall, a lower sealing flap arranged in the upper entry space and a closing mechanism arranged above the lower sealing flap. The closing mechanism includes an upper filling opening and an upper cover, which in a closed state at least partially covers the upper filling opening and being embodied in such a manner that the upper cover is displaced by inserting an outlet pipe of a fuel nozzle into the upper entry space for releasing the upper filling opening so as to allow for the insertion of the outlet pipe through the upper filling opening and the lower sealing flap.

Abstract: The pressure control valve comprises a negative pressure valve and a positive pressure valve. The negative pressure valve comprises a negative pressure valve body, a valve retaining member and an engagement mechanism. The engagement mechanism comprises a support concave portion formed on the negative pressure valve body and a support protrusion formed on the valve retaining member and inserted into the support concave portion, which is formed to reduce the elastic deformation transferred to a second seating portion, when a first seating portion is pressed by a first seal portion to undergo elastic deformation.

Abstract: A clutch oil reservoir cap according to an exemplary embodiment of the present invention including a head and a body may include an exhaust opening formed in the head for exhausting air, an intake hole formed in the head for inflow of air, and an operation valve disposed in the head, wherein the operation valve selectively opens or closes the exhaust opening and the intake hole according to fluctuation of pressure in a part below the operation valve.

Abstract: An insert for a multiple component container includes a reservoir with an opening defined by a peripheral edge which, in use, is connected to a sealing element (20). In use, the reservoir and the sealing element define a substantially sealed space. The reservoir includes a stationary portion (2) and a movable portion (4), which is connected to the stationary portion and is movable with respect thereto by the action of gas pressure within the reservoir. A discharge opening (6) is formed in the movable portion (4) and a gas leakage path is provided in the reservoir wall. A valve member (14) is connected to the stationary portion (2) and cooperates with the discharge opening (6) and substantially seals it. The application of a greater gas pressure to the interior of the reservoir than to its exterior results in movement of the movable portion (4) away from the stationary portion (2) and thus in the valve member (14) moving out of sealing contact with the discharge opening (6).

Abstract: A filler neck cap includes a vacuum-relief valve member that moves from a normally closed position to an opened position when exposed to certain vacuum conditions to open a vent aperture and allow atmosphere to flow therethrough. The filler neck cap also includes a pressure-relief valve member formed to include the vent aperture that is closed normally by the vacuum-relief valve member.

Abstract: A vehicle fuel cap comprises a casing body for opening/closing a filler opening of a filler neck communicating with a fuel tank; and a lid that is equipped at an upper portion of the casing body and is formed of a conductive material, and the vehicle fuel cap forms a discharge portion in the lid for discharging static charge in the lid to the filler neck, wherein the discharge portion comprises a projection form provided on an inner peripheral face of the lid opposite to an outer peripheral edge of the filler opening, and on the inner peripheral face a longitudinal groove is formed at both sides of the discharge portion and along an axial direction of the casing body.

Abstract: A fueling device 10 of a fuel tank comprises a cover 20 which is provided with an operation lever 26 operated to open and close a filling opening SCc, and which opens and closes the filling opening SCc according to the opening/closing operation of the operation lever 26, a fuel cap 30 having a structure such that it is fitted in a buried state in an inlet pipe IP and taken out from the inlet pipe, a gasket GS interposed between the fuel cap 30 and the inner wall of inlet pipe IP, and a spring 70 interposed between the fuel cap 30 and gasket GS and pressing the gasket GS against the sealing surface by a force acting in the direction of closing the cover 20 via the fuel cap 30, while increasing the pressing force. The fueling device 10 has high sealing property against large external forces applied to the upper part of fuel filler pipe.

Abstract: A fuel cap 10 maintains high sealing even when subjected to external force; is easy to operate; and requires minimal space for accommodation. The cap device comprises a casing body 20 for closing the filler opening FNb in a sealed condition, a cover 40, a handle 45, a clutch mechanism 60 and a torque transmission mechanism 80. By upraising the handle to the handling position and applying rotational torque, rotational torque is transmitted to the casing body 20 via the clutch mechanism 60 and the torque transmission mechanism 80, closing the filler opening FNb. The handle 45 lowers back to the retracted position when released, whereupon the clutch mechanism 60 assumes non-transmission mode wherein the cover 40 and the handle 45 rotate freely if subjected to external force such as in a collision.

Abstract: A sealing terminal for an installations duct of tubular shape is provided. The sealing terminal includes a plug having a threaded frustoconical part which can be screwed into one end of the duct, a manipulating head with a peripheral shoulder in a continuation of the plug, where the peripheral shoulder is designed to face an edge face of a border around an opening of the duct, and an annular seal arranged against the peripheral shoulder.

Abstract: A pressure and vacuum vent valve for a vehicle fuel tank is provided including a structure defining a passageway and having a vent valve assembly positioned therein. The assembly includes a pressure relief valve to relieve pressure from the fuel tank when the pressure exceeds a predetermined level and a vacuum relief valve to relieve a vacuum in the tank when the pressure in the tank drops below a predetermined level. The vacuum relief valve presents a lubricious sealing surface that engages a valve seat. The pressure valve engages a sealing surface to close a central venting orifice provided in the vacuum valve.

Abstract: A pressure and vacuum vent valve for a vehicle fuel tank is provided including a structure defining a passageway and having a vent valve assembly positioned therein. The assembly includes a pressure relief valve to relieve pressure from the fuel tank when the pressure exceeds a predetermined level and a vacuum relief valve to relieve a vacuum in the tank when the pressure in the tank drops below a predetermined level. The vacuum relief valve presents a lubricious sealing surface that engages a valve seat. The pressure valve engages a sealing surface to close a central venting orifice provided in the vacuum valve.

Abstract: Proper mounting of a motor vehicle fuel tank cap on a vehicle fill pipe is of major importance to reduce the vapors which on escaping from the fuel tank contributes to environ-mental pollution, to insure proper mounting of the gas cap there is provided in this invention apparatus and method for monitoring proper mounting of the motor vehicle fuel tank cap, on the fill pipe of the vehicle and the apparatus includes strain gauges, connected to a monitor computer and an alarm activated by the monitor computer to indicate proper or improper mounting of the fuel tank cap on the fill pipe of the vehicle fuel tank.

Abstract: A pressure and/or vacuum relief valve (11) for fitting in a cap assembly (4) for an automotive tank filler neck (1), with a substantially cylindrical valve housing (12), in which a valve spindle (23) controlling a first valve gap (26, 27) is mounted axially movably, on which, if necessary, a sleeve (29) controlling a second valve gap (27, 30) is guided axially movably, wherein the valve spindle (23) passes through a central aperture (24) in the upper end and a central aperture (25) in the lower end of the valve housing (12) and is axially guided by those apertures (24, 25).

Abstract: A filler neck closure assembly for a vehicle fuel tank filler neck, comprising: a housing configured to be mounted in the filler neck and formed to include a sealing surface and a pressure-relief valve positioned to lie in the housing and provided with a nozzle-receiving portion and a sealing portion, wherein the nozzle-receiving portion is formed to include a nozzle-receiving opening sized to receive a pump nozzle during refueling of the fuel tank and the sealing portion is movable with the nozzle portion and relative to the housing between a closure-sealing position sealingly engaging the sealing surface and a pressure-relief position away from the sealing surface to define an opening to vent fuel vapor from the fuel tank when tank pressure exceeds a predetermined maximum pressure.