Injection device
AssigneeRobert Bosch GmbH
InventorsOlaf Ohlhafer, Robert Giezendanner-Thoben
Life of this patent
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Abstract
An injection device for injecting a medium, including a valve arrangement with a valve member forming a seal at a valve seat, wherein the valve arrangement is arranged in the medium to be injected, an actuator device with an actuator, a plunger and a return element, and a pulse-transmitting device which is arranged between the valve arrangement and the actuator device, which separates the valve arrangement from the actuator device in a fluid-tight manner and which transmits a pulse generated by the actuator device to the medium to be injected in order in that manner to open the valve arrangement and inject medium.
Claims12
An injection device for injecting a medium, comprising:
- a valve arrangement having a valve member forming a seal at a valve seat, wherein the valve arrangement is arranged in the medium to be injected;
- an actuator device having an actuator, a plunger and a return element;
- and
- a pulse-transmitting device arranged between the valve arrangement and the actuator device, the pulse-transmitting device not directly contacting the valve arrangement or the actuator device, separating the valve arrangement from the actuator device in a fluid-tight manner and transmitting a pulse generated by the actuator device to the medium to be injected in that manner to open the valve arrangement and inject medium;
- wherein the actuator device further includes a transmission chamber which is arranged between the plunger and the pulse-transmitting device;
- wherein the valve member includes a plurality of deformable arms.
An injection device for injecting a medium, comprising:
- a valve arrangement having a valve member forming a seal at a valve seat, wherein the valve arrangement is arranged in the medium to be injected;
- an actuator device having an actuator, a plunger and a return element;
- and
- a pulse-transmitting device arranged between the valve arrangement and the actuator device, which separates the valve arrangement from the actuator device in a fluid-tight manner and which transmits a pulse generated by the actuator device to the medium to be injected in that manner to open the valve arrangement and inject medium;
- wherein the valve member is reversibly deformable and is deformed by the generated pulse in order to be lifted from the valve seat and inject the medium;
- wherein the valve member includes a plurality of deformable arms.
Dependencies are inferred from the claim text.