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US 11,629,820 B2Granted
Liquefied hydrogen filling apparatus
AssigneeHylium Industries, Inc.
InventorsSeo Young Kim, Jai Hyun Choi, Eun Yeob Cho, Joshua Kim Schimpf
Life of this patent
Estimating the term…
Abstract
Disclosed is a liquefied hydrogen filling apparatus configured such that connection between liquefied hydrogen injection lines is performed stepwise, whereby there is no concern of leakage of liquefied hydrogen the moment the liquefied hydrogen injection lines are connected to each other, and therefore it is possible to guarantee safety and to prevent loss of fuel. In addition, the state of connection between the liquefied hydrogen injection lines is securely maintained, whereby there is no concern of separation due to internal pressure at the time of filling or other external force, and therefore it is possible to perform safe filling.
Claims15
A liquefied hydrogen filling apparatus comprising:
- a receptacle mounted to a liquefied hydrogen storage tank, the receptacle having mounted therein a blocking unit configured to be opened by external force;
- and
- a multistage opening and closing device detachably coupled to the receptacle, the multistage opening and closing device having:
- a housing configured to define a central path extending in a longitudinal direction, the housing having a receptacle reception portion configured to receive a portion of the receptacle, the receptacle reception portion being formed at an upper end of the housing;
- a lock supported by the housing, the lock being configured to fix the receptacle received in the receptacle reception portion to the housing;
- a sliding valve installed in the central path of the housing so as to be slidable in the longitudinal direction, said sliding valve having a tubular rectilinear body configured to abut an inner circumferential surface of the central path of the housing, the tubular rectilinear body defining an in-body path configured to allow liquefied hydrogen to pass therethrough, a portion of the tubular rectilinear body of the sliding valve extending outwards from the central path, the sliding valve being configured to be opened by external force transmitted from the receptacle;
- and
- a driving unit mounted to a lower end of the housing, the driving unit being configured to drive the lock first in order to fix the receptacle, to move the sliding valve to the blocking unit such that the sliding valve is opened by reaction force from the blocking unit, and simultaneously to drive the sliding valve such that the sliding valve pushes open the blocking unit.
5 more elements
A liquefied hydrogen filling apparatus comprising,
- a receptacle mounted to a liquefied hydrogen storage tank, the receptacle having mounted therein a blocking unit configured to be opened by external force;
- and
- a multistage opening and closing device detachably coupled to the receptacle, the multistage opening and closing device having:
- a housing configured to define a central path extending in a longitudinal direction, the housing having a receptacle reception portion configured to receive a portion of the receptacle, the receptacle reception portion being formed at an upper end of the housing;
- a lock supported by the housing, the lock being configured to fix the receptacle received in the receptacle reception portion to the housing;
- a sliding valve installed in the central path of the housing so as to be slidable in the longitudinal direction, a portion of the sliding valve extending outwards from the central path, the sliding valve being configured to be opened by external force transmitted from the receptacle;
- and
- a driving unit mounted to a lower end of the housing, the driving unit being configured to drive the lock first in order to fix the receptacle, to move the sliding valve to the blocking unit such that the sliding valve is opened by reaction force from the blocking unit, and simultaneously to drive the sliding valve such that the sliding valve pushes open the blocking unit, wherein
- the receptacle has a stationary duct provided with a guide path having a predetermined inner diameter, the stationary duct being provided on an outer circumferential surface thereof with a catching ring configured to be caught and supported by the lock, and
- the blocking unit has a first stationary valve, the first stationary valve comprising:
- a valve casing fixed in the guide path, the valve casing defining a valve path, the valve casing having a step portion formed therein, the valve casing being configured to apply reaction force to the sliding valve;
- a movable shutter installed in the valve path, the movable shutter having an extension rod extending in the longitudinal direction and a blocking plate formed integrally with the extension rod, the blocking plate being configured to advance to or retreat from the step portion, the blocking plate being in tight contact with the step portion to block the valve path, the movable shutter being configured to be pushed by the sliding valve in order to open the step portion;
- and
- a spring configured to elastically support the blocking plate against the step portion, and
- wherein a second stationary valve is further installed in the guide path, the second stationary valve being arranged with respect to the first stationary valve in series, the second stationary valve being configured to be pushed by the extension rod so as to be opened simultaneously with the first stationary valve.
12 more elements
A liquefied hydrogen filling apparatus comprising,
- a receptacle mounted to a liquefied hydrogen storage tank, the receptacle having mounted therein a blocking unit configured to be opened by external force;
- and
- a multistage opening and closing device detachably coupled to the receptacle, the multistage opening and closing device having:
- a housing configured to define a central path extending in a longitudinal direction, the housing having a receptacle reception portion configured to receive a portion of the receptacle, the receptacle reception portion being formed at an upper end of the housing;
- a lock supported by the housing, the lock being configured to fix the receptacle received in the receptacle reception portion to the housing;
- a sliding valve installed in the central path of the housing so as to be slidable in the longitudinal direction, a portion of the sliding valve extending outwards from the central path, the sliding valve being configured to be opened by external force transmitted from the receptacle;
- and
- a driving unit mounted to a lower end of the housing, the driving unit being configured to drive the lock first in order to fix the receptacle, to move the sliding valve to the blocking unit such that the sliding valve is opened by reaction force from the blocking unit, and simultaneously to drive the sliding valve such that the sliding valve pushes open the blocking unit, wherein
- the receptacle has a stationary duct provided with a guide path having a predetermined inner diameter, the stationary duct being provided on an outer circumferential surface thereof with a catching ring configured to be caught and supported by the lock, and
- the blocking unit has a first stationary valve, the first stationary valve comprising:
- a valve casing fixed in the guide path, the valve casing defining a valve path, the valve casing having a step portion formed therein, the valve casing being configured to apple reaction force to the sliding valve;
- a movable shutter installed in the valve path, the movable shutter having an extension rod extending in the longitudinal direction and a blocking plate formed integrally with the extension rod, the blocking plate being configured to advance to or retreat from the step portion, the blocking plate being in tight contact with the step portion to block the valve path, the movable shutter being configured to be pushed by the sliding valve in order to open the step portion;
- and
- a spring configured to elastically support the blocking plate against the step portion, and
- wherein the lock comprises:
- an elastic locker installed in the receptacle reception portion such that a position of the elastic locker is adjustable, the elastic locker being opposite the catching ring of the receptacle inserted in the receptacle reception portion;
- a spring configured to apply elastic force to the elastic locker such that the elastic locker is separated from the catching ring;
- and
- a locking realization unit configured to be movable rectilinearly in a state of wrapping the receptacle reception portion and to support the elastic locker against the receptacle through rectilinear movement in order to fix the receptacle or to allow action of the spring to be applied to the elastic locker such that the elastic locker is separated from the catching ring, and
- wherein
- a plurality of side paths configured to open an inner space of the receptacle reception portion in a lateral direction is formed in the receptacle reception portion,
- the elastic locker is installed in each of the side paths so as to be turnable about a turning pin, the elastic locker being provided at an upper end thereof with a hook configured to fix the catching ring by catching the catching ring, and
- the spring is an extension spring configured to connect a lower end of the elastic locker and the housing to each other.
20 more elements
Dependencies are inferred from the claim text.