Steam valve
AssigneeMitsubishi Heavy Industries, Ltd.
InventorHiroshi Igawa
Life of this patent
Estimating the term…
Abstract
Provided is a steam valve including a valve seat, a valve disc capable of contacting the valve seat, a valve rod connected or linked to the valve disc, a bush that slidably supports the valve rod, and an actuator that moves the valve disc via the valve rod, in which the valve rod has thereon a plurality of groves depressed to an inner side in a diametrical direction of the valve rod and a plurality of projections formed between the plurality of grooves, and each of the plurality of projections in an axial cross section of the valve rod is shaped so as to have one tip point.
Claims2
A steam valve comprising:
- a valve seat;
- a valve disc capable of contacting the valve seat;
- a valve rod connected or linked to the valve disc;
- a bush that slidably supports the valve rod;
- and
- an actuator that moves the valve disc via the valve rod, wherein
- the valve rod has thereon a plurality of groves depressed to an inner side in a diametrical direction of the valve rod and a plurality of projections formed between the plurality of grooves, and
- each of the plurality of projections in an axial cross section of the valve rod is shaped so as to have one tip point.
A steam valve comprising:
- a valve seat;
- a valve disc capable of contacting the valve seat;
- a valve rod connected or linked to the valve disc;
- a bush that slidably supports the valve rod;
- and
- an actuator that moves the valve disc via the valve rod, wherein
- the bush has thereon a plurality of groves depressed to an outer side in a diametrical direction of the bush and a plurality of projections formed between the plurality of grooves, and
- each of the plurality of projections in an axial cross section of the bush is shaped so as to have one tip point.
Dependencies are inferred from the claim text.