Valve apparatus for high pressure gas containers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-021/00
F16K-001/30
F16K-031/42
F16K-001/36
F16K-017/38
F16K-025/00
출원번호
US-0694653
(2012-12-26)
등록번호
US-9371913
(2016-06-21)
발명자
/ 주소
Lhymn, Sue H.
Lhymn, Chris
출원인 / 주소
Lhymn, Sue H.
인용정보
피인용 횟수 :
1인용 특허 :
7
초록▼
A valve apparatus is comprised of a solenoid valve, a manual valve, a pressure relief device, a check valve, an excess flow shut-off device, and a temperature sensor. The temperature sensor is arranged inside the tank in an ambient atmosphere. The sealing member is prevented from falling off from th
A valve apparatus is comprised of a solenoid valve, a manual valve, a pressure relief device, a check valve, an excess flow shut-off device, and a temperature sensor. The temperature sensor is arranged inside the tank in an ambient atmosphere. The sealing member is prevented from falling off from the recess by a floating seal structure. The sealing effectiveness is improved by employing a double seal configuration and also by a smooth surface roughness. A high pressure seal structure is presented. The improved pressure relief device design for 75 MPa application has been presented.
대표청구항▼
1. A valve assembly comprising: a housing body being fixedly connected to a gas cylinder and provided with a gas inlet port which communicates with an interior of the gas cylinder;a gas supply passage communicating the gas inlet port with the interior of the gas cylinder;a gas charging passage arran
1. A valve assembly comprising: a housing body being fixedly connected to a gas cylinder and provided with a gas inlet port which communicates with an interior of the gas cylinder;a gas supply passage communicating the gas inlet port with the interior of the gas cylinder;a gas charging passage arranged separately from the gas supply passage, and communicating a gas charging port with the interior of the gas cylinder;a pressure relief device passage in communicating with the gas charging passage;a check valve arranged in the gas charging passage downstream of the gas charging port, wherein the pressure relief device passage connected to the gas charging passage at a location upstream of the check valve;a temperature sensor passage arranged separately from the gas supply and gas charging passages to communicate the atmospheric environment with a sensor chamber positioned inside the gas cylinder;a temperature sensor wire sealingly routes through the temperature passage and connects with a temperature sensor arranged inside the sensor chamber;a first manual valve arranged in the gas supply passage;a solenoid valve arranged in the gas supply passage and downstream of the first manual valve; an outlet of the solenoid valve communicating with a gas outlet port; said solenoid valve having: a valve chamber,a valve seat of conical shape provided in a gas passage of the valve,a valve closing spring,an electromagnetic device,a tube housing, wherein one end of the tube housing is closed in the interior thereof,a movable assembly located in the tube housing and being pushed toward the valve seat by a resilient force of the valve closing spring and moved in a valve opening direction when the electromagnetic device is energized, the movable assembly consisting of: a main valve member having O-rings on its conical surface and a pilot seat at opposite end of the conical surface,a coupler;a movable core plunger,a slidable pilot plunger, anda pilot seal, wherein said pilot seal is trapped inside the movable core plunger and abuts on a shoulder at the end of cavity of the movable core plunger with other face of the pilot seal being in contact with the slidable pilot plunger, and wherein said pilot seal is in contact with the pilot seat through a small through hole at the end of the movable core plunger when the solenoid valve is in a closed state by de-energization of solenoid coil, the pilot seal being detached from the pilot seat when the coil is energized to open the main valve member contact, and further wherein the diameter of the small through hole is smaller than the diameter of pilot seal such that the pilot seal cannot fall off the movable core plunger cavity;an excess flow shut off device arranged in the gas supply passage and upstream of the first manual valve;a thermal safety device provided in the pressure relief device passage, comprising: a straight cavity, and a fusible alloy mixed with reinforced agents fills the central of the straight cavity; wherein the straight cavity is not covered by the housing body or a connection fitting hardware. 2. The valve assembly according to claim 1, wherein the surface roughness of sealing surfaces with the O-ring is smooth with the surface roughness in Ra being 1.m.u.m. or smoother. 3. The valve assembly according to claim 1, wherein the pilot seal material is selected from the group consisting of reinforced polymer composites, two layer composites consisting of a first soft layer facing the pilot seal and the second strong layer, polyimides coated with flexible/soft polymers, polyimides coated with elastomers, and any other single layer or multi-layer structure which deforms for sealing and which does not deform destructively. 4. The valve assembly according to claim 1, wherein the excess flow shut-off device includes a movable EFS a hollow core with one open end and one closed end, wherein there are four side openings on a round sidewall of the hollow core.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (7)
Borland Robin N. (McMurray PA) Hughes David E. (Pittsburgh PA), Crashworthy solenoid actuated valve for CNG powered vehicle.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.