| 摘要 |
<p>A pump comprising a housing (21) including first (25) and second (27) housing sections and a gasket (89) between the first and second housing sections. The housing (21) has a first pumping chamber (31), an inlet (43), an inlet passage (91) in the housing (21) leading from the inlet (43) to the pumping chamber (31), an outlet (45) and an outlet passage (119) in the housing leading from the pumping chamber (31) to the outlet (45). A pumping member is movable in the pumping chamber (31) to pump fluid through the pump. Inlet and outlet check valves (123) are provided in the inlet (91) and outlet passages (119), respectively with each of the check valves (23) including a movable valve element. The gasket (89) forms a seal between the first (25) and second housing (27) sections and includes at least one of the valve elements for the check valves (123).</p> |
