Patent ID: 11964552
Assignee: FTXT ENERGY TECHNOLOGY CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 0:
1. A pressure vessel, comprising:
a casing having a storage space defined therein and a communication channel that communicates the storage space with an outside;
a cylinder valve disposed at the communication channel and configured to adjust an opening degree of the communication channel;
an inner liner disposed on an inner wall surface of the casing facing towards the storage space, wherein an inner liner connecting portion is formed between the inner liner and the casing, the cylinder valve extends out of the inner liner, the inner liner comprises a fitting portion adapted to surround and be attached on an outer peripheral surface of the cylinder valve; and
a valve seat at least partially supported between the cylinder valve and the communication channel, wherein a limiting portion is provided on an inner wall surface of the valve seat, and the limiting portion is adapted to be attached on and stop the outer peripheral surface of the cylinder valve,
wherein a depth of the cylinder valve extending into the storage space along the communication channel does not exceed a depth of the valve seat extending into the storage space along the communication channel, the inner liner comprises a curved portion that protrudes towards the storage space, an inner side of the curved portion forms the inner liner connecting portion, the curved portion has an opening through which the cylinder valve extends, a circumferential edge of the opening surrounds the fitting portion, the fitting portion is located in the inner liner connecting portion and is sandwiched between the cylinder valve and the valve seat, and an annular sealing groove is defined on a free end of the fitting portion, and a first sealing member for sealing the cylinder valve and the fitting portion is sleeved in the annular sealing groove; or
wherein a depth of the cylinder valve extending into the storage space along the communication channel exceeds a depth of the valve seat extending into the storage space along the communication channel, the inner liner has a curved portion that protrudes towards the storage space, an inner side of the curved portion forms the inner liner connecting portion, the curved portion has an opening through which the cylinder valve extends, a circumferential edge of the via opening surrounds the fitting portion, the fitting portion is adapted to be attached on a portion of the cylinder valve extending out of the inner liner connecting portion, and an annular sealing groove is defined on a free end of the fitting portion and a first sealing member for sealing the cylinder valve and the fitting portion is sleeved in the annular sealing groove.