Pressure reduction valve and production method for pressure reduction valve
AssigneeHitachi Astemo, Ltd.
InventorTomoyoshi KOYAMA
Life of this patent
Estimating the term…
Abstract
A pressure reduction valve includes: a body member that has an internal space for accommodating a valve element and has a body opening portion communicating with the internal space; a bottom wall surface-forming member that is accommodated in the internal space, is in contact with an inner wall surface of the body member, and forms a bottom wall surface of a valve chamber in which the valve element is located; and a cap member that is screwed to the body member and closes the body opening portion.
Claims17
A pressure reduction valve comprising:
- a body member that has an internal space which accommodates a valve element and has a body opening portion communicating with the internal space;
- a bottom wall surface-forming member configured to be accommodated in the internal space, be in contact with an inner wall surface of the body member, and form a bottom wall surface of a valve chamber in which the valve element is located;
- and
- a cap member configured to be screwed to the body member and close the body opening portion.
A production method for a pressure reduction valve, in which a body member has an internal space, which accommodates a valve element, and a body opening portion, which communicates with the internal space, the method comprising:
- a bottom wall surface-forming member disposing step of accommodating a bottom wall surface-forming member in the internal space such that the bottom wall surface-forming member is in contact with an inner wall surface of the internal space, the bottom wall surface-forming member forming a bottom wall surface of a valve chamber in which the valve element is located;
- and
- a sealing step of screwing a cap member, which closes the body opening portion, to the body member.
Dependencies are inferred from the claim text.