Rotary Disc Valve
AssigneeRobert Bosch GmbH
InventorThomas Chapman
Life of this patent
Estimating the term…
Abstract
A rotary disc valve is used in a fluid delivery system to control flow of fluid between multiple ports. The valve may include a valve body having multiple ports that are connected to the system. In addition, the valve may include a diverter and seal assembly that are disposed in the valve body. The diverter is configured to rotate about a rotational axis and to control fluid flow through the valve body. The valve is free of an axial compression spring, and the valve body, the lid and the diverter are shaped and dimensioned so that an interference fit exists between the lid and the diverter that results in compression of the seal assembly between the diverter and the base.
Claims19
A valve comprising:
- a valve body including
- a sidewall,
- a base that closes one end of the sidewall, and
- valve ports, each valve port defining an opening in the sidewall;
- a lid that closes an end of the sidewall that is opposite the base, the lid comprising a central opening, the lid, the sidewall and the base cooperating to define a chamber;
- a diverter disposed in the chamber, the diverter configured to control fluid flow through the valve body, the diverter including
- a diverter sealing surface that faces toward the base,
- a diverter outer surface that is opposed to the diverter sealing surface and faces the lid,
- diverter through openings that extend between the diverter sealing surface and the diverter outer surface, and
- a shaft that protrudes from the diverter outer surface in a direction perpendicular to the diverter sealing surface, the shaft extending through the central opening and configured to be connected to an actuator that drives the diverter to rotate about a rotational axis;
- and
- a seal assembly disposed in the chamber between the diverter sealing surface and the base,
- wherein the valve body, the lid and the diverter are shaped and dimensioned so that an interference fit exists between the lid and the diverter that results in compression of the seal assembly between the diverter and the base.
A valve comprising:
- a valve body including
- a sidewall,
- a base that closes one end of the sidewall, and
- valve ports, each valve port defining an opening in the sidewalk
- a lid that closes an open end of the sidewall, the lid, the sidewall and the base cooperating to define a chamber:
- a diverter disposed in the chamber, the diverter configured to control fluid flow through the valve body, the diverter including
- a diverter sealing surface that faces toward the base,
- a diverter outer surface that is opposed to the diverter sealing surface and faces the lid,
- diverter through openings that extend between the diverter sealing surface and the diverter outer surface,
- a shaft that protrudes from the diverter outer surface in a direction perpendicular to the diverter sealing surface, the shaft extending through the central opening and configured to be connected to an actuator that drives the diverter to rotate about a rotational axis;
- and
- a seal assembly disposed in the chamber between the diverter sealing surface and the base,
- wherein the lip contacts the diverter in such a way that an axial load is applied to the diverter, and the axial load results in compression of the seal assembly between the diverter and the base.
Dependencies are inferred from the claim text.