Patent ID: 9689364
Date: 2017-06-27
CPC Classifications: F02M,F16K

Claim:
1. A valve assembly comprising: a housing defining a valve chamber, wherein the valve chamber comprises a first end and a second end opposite the first end; a valve inlet disposed adjacent the first end of the valve chamber and in fluid communication therewith, wherein the valve chamber is configured to receive a flow of fluid from the valve inlet; a valve outlet in fluid communication with the valve chamber to receive a flow of fluid from the valve chamber; a valve seat fixedly disposed at the first end of the valve chamber; a valve body movably disposed within the valve chamber, the valve body comprising a valve head and a base portion, wherein the base portion defines a fluid chamber having a channel formed in an outer surface of the base portion; a retainer sealingly engaging the housing and defining a cavity between the base portion of the valve body and the retainer, wherein the retainer comprises a plurality of control orifices formed therein and configured to provide fluid communication to the cavity to regulate a position of the valve body between the first end and the second end of the valve chamber based on at least a pressure difference between the valve chamber and the cavity, and wherein a position of the valve body between the first end and the second end of the valve chamber controls an alignment of the channel formed in the valve body and one or more of the plurality of control orifices, wherein a first control orifice of the plurality of control orifices is in fluid communication with the valve chamber; and a spring member disposed between the retainer and the valve body, wherein the spring member is configured to bias the valve body towards the first end of the valve chamber, and wherein the valve head of the valve body is configured to abut against the valve seat to prevent a flow of fluid between the valve inlet and the valve chamber.