Fluid pumping device and components with static seal

A fluid pump housing, comprising:

• a support structure circumscribing a pump chamber, the support structure including a first sealing side, a second sealing side opposite to the first sealing side, a first opening located at the first sealing side, a second opening located at the second sealing side, a first sealing surface circumscribing the first opening, a second sealing surface circumscribing the second opening, a fluid transfer end interposed between the first sealing side and the second sealing side, a fluid inlet bore formed through the fluid transfer end, and a fluid outlet bore formed through the fluid transfer end, wherein the support structure provides a fluid flow path running through the fluid transfer end and into the pump chamber via the fluid inlet bore and from the pump chamber back through the fluid transfer end via the fluid outlet bore;
• a first sealing element disposed on the first sealing surface;
• a second sealing element disposed on the second sealing surface;
• a first housing section contacting the first sealing element and covering the first opening;
• and
• a second housing section contacting the second sealing element and covering the second opening,
• wherein the support structure, the first sealing element, the second sealing element, the first housing section, and the second housing section cooperatively fluidly seal the pump chamber from an environment external to the fluid pump housing, with the first sealing element forming a sealed interface between the first housing section and the support structure and the second sealing element forming a sealed interface between the second housing section and the support structure.

A fluid pump, comprising:

• a support structure circumscribing a pump chamber, the support structure including a first sealing side, a second sealing side opposite to the first sealing side, a first opening located at the first sealing side, a second opening located at the second sealing side, a first sealing surface circumscribing the first opening, a second sealing surface circumscribing the second opening, a fluid transfer end interposed between the first sealing side and the second sealing side, a fluid inlet bore formed through the fluid transfer end, and a fluid outlet bore formed through the fluid transfer end;
• a first sealing element disposed on the first sealing surface;
• a second sealing element disposed on the second sealing surface;
• a first housing section contacting the first sealing element and covering the first opening;
• a second housing section contacting the second sealing element and covering the second opening;
• and
• a pump unit disposed in the pump chamber, the pump unit including a pump inlet fluidly communicating with the fluid inlet bore and a pump outlet fluidly communicating with the fluid outlet bore,
• wherein the support structure, the first sealing element, the second sealing element, the first housing section, and the second housing section cooperatively fluidly seal the pump chamber and the pump unit from an environment external to the fluid pump housing, with the first sealing element forming a sealed interface between the first housing section and the support structure and the second sealing element forming a sealed interface between the second housing section and the support structure.

A method for forming a static seal in a fluid pump housing, the method comprising:

• seating a support structure in a first housing section such that a first sealing element is interposed between a first sealing surface of the support structure and a first inside surface of the first housing section, the support structure circumscribing a pump chamber and the first sealing element circumscribing a first opening between the interior space and a first interior of the first housing section;
• and
• seating a second housing section on the support structure such that a second sealing element is interposed between a second sealing surface of the support structure and a second inside surface of the second housing section, the second sealing surface located on a side of the support structure opposite to the first sealing surface and circumscribing a second opening between the interior space and a second interior of the second housing section,
• wherein the support structure, the first sealing element, the second sealing element, the first housing section, and the second housing section cooperatively fluidly seal the pump chamber from an environment external to the fluid pump housing.