Tatsuno Corporation

To provide a gas filling device in which its assembly work is simplified by unitizing a housing body and the total number of assembly steps is reduced, thereby achieving high production efficiency. A gas filling device 100 according to the present invention including a lower unit 10 housing a heat exchanger 13 on a base frame 1 ; an intermediate unit 20 located above the lower unit 10 and housing a display; a top unit 30 located above the intermediate unit 20 and housing a flow meter 33 ; and side units 40 located on both sides of the lower unit 10 and the intermediate unit 20 and housing filling hoses having filling nozzles at their tips.

A seal structure used in a type of valve in which a valve body is formed at the tip of a valve stem, and the valve is closed or opened by moving the valve stem in the central axial direction, in which a multi-stage seal is formed by continuously arranging multiple stages of annular sealing material in the area where the valve stem slides. The seal structure 30 of the present invention is characterized by including a plurality of stages of combinations of: a C-shaped member 32 having a circular ring with a portion cut out in a circumferential direction of the circular ring; a composite member 33 including a hollow cylindrical portion 33 A and a flange 33 B extending radially outward on a valve body side of the hollow cylindrical portion 33 A in a central axis direction of the hollow cylindrical portion 33 A, the hollow cylindrical portion 33 A being inserted into a central hollow portion of the C-shaped member 32; and a backup ring 34 and an O-ring 35 placed on the flange 33 B of the composite member 33.

A flow rate regulating valve that handles high-pressure gas as a working fluid, which can withstand and operate under the load caused by the high pressure of the high-pressure gas, and is resistant to wear. The flow rate regulating valve 100 of the present invention includes: a valve stem 1 whose flow passage cross-sectional area and flow rate vary depending on a size of the valve stem 1 inserted into a flow passage 3; a cam plate 11 having a slope formed on its surface 11 A; a drive source 20 for rotating the cam plate 11; and a cam follower (cam follower rod) 12 having a truncated cone-shaped roller 12 A pressed against the surface 11 A of the cam plate 11, the roller 12 A rolling on the surface 11 A of the cam plate 11 to move the valve stem 1 in an axial direction of the valve stem 1, wherein the surface 11 A of the cam plate 11 is complementary in shape to the roller 12 A of the cam follower 12.

To provide a shutoff valve that can reduce wear on a metal valve body by preventing the pressing force of high-pressure gas and the elastic repulsive force of a spring from acting simultaneously on the valve body when the valve is shut off. The shutoff valve has a valve closing mechanism including an actuator and a valve closing force adjustment mechanism. The valve closing force adjustment mechanism includes an elastic repulsive force eliminating device and a valve stem actuation shaft accommodating device, the elastic repulsive force eliminating device having a function of eliminating the elastic repulsive force of a valve stem engagement portion actuating spring, and the valve stem actuation shaft accommodating device 40 having a function of eliminating the elastic repulsive force of a pressure adjustment spring.

To provide a gas filling device that can effectively prevent the infiltration of rainwater with a simple structure. A gas filling device 1 of the present invention including: a filling mechanism for transporting gas from a gas supply source through a gas pipe; a main body housing 2 having the filling mechanism therein; a filling hose 3 connected to an outlet of the gas pipe of the filling mechanism; and a support arm mechanism 6 for supporting, via a wire 5, a filling nozzle 4 provided at a tip of the filling hose 3, wherein the support arm mechanism 6 including: an upper cover 6 A having a first bent portion 6 AA formed downward along its entire periphery; and a lower cover 6 B having a second bent portion 6 BA formed upward, wherein the second bent portion 6 BA is located on an inner surface of the first bent portion 6 AA.

To provide a gas filling device that can effectively prevent the infiltration of rainwater with a simple structure. A gas filling device 1 of the present invention including: a filling mechanism for transporting gas from a gas supply source through a gas pipe; a main body housing 2 having the filling mechanism therein; a filling hose 3 connected to an outlet of the gas pipe of the filling mechanism; and a support arm mechanism 6 for supporting, via a wire 5, a filling nozzle 4 provided at a tip of the filling hose 3, a mechanical winding device 9 provided at an end of the support arm mechanism 6; and a guide provided at another end of the support arm mechanism 6 for guiding a wire 5 A led out from the mechanical winding device 9 to an opening 6 BC formed in a lower cover 6 B of the support arm mechanism 6. It is preferable that the guide is provided with a reeling roller 11 A that sends the wire 5 A from the mechanical winding device 9 to an opening 6 BC, and a holding roller 11 B that restricts the wire 5 A from moving upward, and the wire 5 A is sandwiched between the reeling roller 11 A and the holding roller 11 B.

A filling nozzle includes a pipe joint body provided at a tip of a filling hose and connected to a receptacle on a side to be filled; a clutch that extends on an outside of the pipe joint body in a connection direction in which the pipe joint body and the receptacle are connected and engages with the receptacle; a lever that extends on an outside of the clutch in the connection direction and restricts a movement of the clutch in the connection direction when the gaseous fuel is filled; and an urging means urging the clutch inward in a direction perpendicular to the connection direction to release the restriction in movement of the clutch in the connection direction when filling of the gaseous fuel is completed.

To provide a calibration device reliably accomplish communication filling without a great deal of labor when filling gaseous fuel (e.g., hydrogen gas) from a filling apparatus (e.g., a hydrogen filling apparatus) to a device to be filled (e.g., a hydrogen tank of an FCV) via the calibration device, and so on. A calibration device 100 according to the present invention includes a flowmeter 1 ; a filling nozzle 2 connected to the flowmeter 1 through a pipe 4 A, the filling nozzle 2 having a communication input part 2 A that receives information from a side 30 to be filled as an optical signal; and a receptacle 3 connected to the flowmeter 1 through a pipe 4 B, the receptacle 3 having a communication output part 3 A that outputs the signal received from the communication input part 2 A of the filling nozzle 2 to a filling nozzle side of a filling device 20 that fills gaseous fuel, wherein the communication output part 3 A is movable in a central axis direction of the pipe 4 B connected to the receptacle 3 , and an optical signal is emitted from the communication output part 3 A toward the central axis of the pipe 4 B.

A fuel supply apparatus includes a plurality of supply systems; a supply control device provided in each of the supply systems; a supply pipe communicating each of the supply systems and each of rear facilities; a supply member interposed in the supply pipe and connected to each of the supply control devices; and a supply hose connected to the supply pipe, the supply hose having a supply nozzle at its tip, wherein the supply control device includes: a function of determining whether or not communication filling is established in one side of the supply system/or the other side of the supply system; and when communication filling is not established in the supply system on the one side and communication filling is established in the supply system on the other side, a function of supplying using vehicle side data in the supply system on the other side.

To provide a filling nozzle that can prevent a protrusion at a tip of a clutch from becoming fixed in a radially outwardly open position. A filling nozzle 10 - 1 according to the present invention is characterized by including: a pipe joint body 1 provided at a tip of a filling hose for filling gaseous fuel and connected to a receptacle 20 on a side to be filled with gaseous fuel; and a clutch 4 that extends on an outside of the pipe joint body 1 in a direction in which the pipe joint body 1 and the receptacle 20 are connected (hereinafter referred to as “connection direction”) and engages with the receptacle 20 , wherein a ring-shaped elastic spacer ( 15, 15 - 1, 15 - 2, 15 - 3 ) is fitted into an engagement portion where an end portion 4 E of the clutch 4 away from the receptacle 20 is engaged with the pipe joint body 1 such that a portion 4 R of the clutch 4 other than the end portion 4 E is biased radially inwardly of the filling nozzle 10 - 1 by the elastic spacer 15 , etc., and a shape of the elastic spacer 15 , etc. is complementary to a gap or a portion of the gap when the end portion 4 E of the clutch 4 is engaged with the engagement portion where the end portion 4 E engages with the pipe joint body 1.