Pressure responsive oil flow regulating supply valve
AssigneeCarrier Corporation
InventorsJames W. Bush, Erric L. Heitmann, Douglas J. Sheahan
Life of this patent
Estimating the term…
Abstract
A pressure responsive oil flow regulating supply valve assembly includes an oil supply input; an oil supply output; an oil flow path defined between the input and output. A valving mechanism located in the oil flow path includes a device for restricting oil flow at a first level in response to normal pressure and for restricting oil flow at a second level in response to high pressure conditions. In addition, other levels of restriction may be provided for other pressure conditions.
Claims4
A pressure regulating valve assembly for use in an oil supply line for a compressor operating under variable pressure conditions, comprising:
- an oil supply input;
- an oil supply output;
- an oil flow path defined between said input and output;
- a biased translatable spool located in said oil flow path and having multiple portions of differing diameter for restricting but not preventing oil flow at a first level in response to normal pressure and for restricting oil flow at a second level in response to high pressure conditions;
- wherein each multiple portion of differing diameter has a diameter different in size from any other portion of differing diameter such that each size is used for adjusting oil flow at different level for a different pressure condition.
Dependencies are inferred from the claim text.