Fluid pump with integrated cowling and discharge muffler

A fluid pump, comprising:

• a pump head comprising a pump housing and a pumping stage, wherein the pumping stage comprises a pumping stage inlet, a pumping stage outlet, a pump stator positioned inside the pump housing, and a movable pump element positioned inside the pump housing,
• wherein the movable pump element is configured to be driven by a motor to drive a pumping action of the pumping stage, such that the pumping stage pumps a fluid from the pumping stage inlet to the pumping stage outlet;
• a cowling removably mountable to the pump head and separate from the pump housing, the cowling comprising a cowling wall and a muffler receptacle, wherein the cowling wall encloses a cowling interior and at least a portion of the muffler receptacle, and the cowling wall and the muffler receptacle are positioned outside the pump housing, and wherein:
• the cowling wall comprises an outside cowling wall and an inside cowling wall arranged to form at least a first cowling interior section and a second cowling interior section at least partially partitioned by the inside cowling wall, and the first cowling interior section corresponds to the muffler receptacle;
• and
• the outside cowling wall comprises a vent communicating with an environment outside the cowling and configured to establish an air flow path between the second cowling interior section and the environment via the vent;
• and
• a muffler insert comprising a muffler inlet, a muffler outlet, and a plurality of muffler walls, wherein the muffler insert is configured to be removably inserted into the muffler receptacle and is removable from the muffler receptacle without disassembling the pump head,
• wherein, when the muffler insert is inserted into the muffler receptacle, the cowling wall and the muffler insert cooperatively define an assembled discharge muffler positioned outside the pump housing and configured to suppress noise generated by fluid discharged from the pumping stage outlet.