Microvalve, micropump and manufacturing method
AssigneeRobert Bosch GmbH
InventorsRalf Reichenbach, Peter Rothacher
Life of this patent
Estimating the term…
Abstract
A microvalve, in particular for a micropump, is described, which includes a valve member which is adjustable between an open position and a closed position, in contact with a valve seat in its closed position. The valve seat is made of a polymer material. A micropump and a manufacturing method are also described.
Claims28
A microvalve system for a micropump, comprising:
- two microvalves having a multilayer structure, each of the two microvalves including a valve member which is adjustable between an open position and a closed position;
- and
- an insert part made of polymer material that forms two valve seats, the insert part also acting as a seal when in contact with the valve members in the closed position for closing the microvalves to a fluid system,
- wherein the insert part has a plate-shaped section and two push-in sections on the plate-shaped section, each of the two push-in sections being for a respective one of the two microvalves, the two push-in sections forming the valve seats and being insertable into respective separate recesses in a layer of the multilayer structure.
A micropump having a microvalve system, the microvalve system comprising:
- two microvalves having a multilayer structure, each of the two microvalves including a valve member which is adjustable between an open position and a closed position;
- and
- an insert part made of polymer material that forms two valve seats, the insert part also acting as a seal when in contact with the valve members in the closed position for closing the microvalves to a fluid system,
- wherein the insert part has a plate-shaped section and two push-in sections on the plate-shaped section, each of the two push-in sections being for a respective one of the two microvalves, the two push-in sections forming the valve seats and being insertable into respective separate recesses in a layer of the multilayer structure,
- wherein a first of the microvalves is an inlet valve and a second of the microvalves is an outlet valve.
A method for manufacturing a microvalve system having two adjustable valve members and two valve seats, wherein the valve members are adjustable between an open position and a closed position and are in contact with the two valve seats in the closed position, the method comprising:
- forming the valve seats from a polymer material;
- and
- forming an insert part that forms the valve seats by at least one of hot stamping injection molding, and polymerization, the insert part having a plate-shaped section and two push-in sections on the plate-shaped section, the two push-in sections forming the valve seats and being inserted into respective separate recesses of a multilayer system containing the valve members,
- wherein the insert part is inserted in a post-crosslinkable state into the recesses and is post-crosslinked one of during or after the insertion, by at least one of UV exposure and temperature exposure, after prior surface treatment of the multilayer system, at least in an area to be joined to the insert part.
Dependencies are inferred from the claim text.