초록 ▼

A material moving apparatus, and in particular, a material moving pump such as a manure pump. The pump includes a pumping chamber defined by interior chamber walls, and a piston or ram mounted for reciprocation in the chamber. The ram has side walls generally in conformance with the shape formed by

A material moving apparatus, and in particular, a material moving pump such as a manure pump. The pump includes a pumping chamber defined by interior chamber walls, and a piston or ram mounted for reciprocation in the chamber. The ram has side walls generally in conformance with the shape formed by the interior walls defining the chamber. The side walls of the ram are slotted or provided with grooves which induce turbulence in fluid flow between the side walls of the ram and the interior walls of the chamber to inhibit backflow of material from a position in front of the ram to a position behind the ram. The pump thus operates efficiently to pump material of low viscosity or material of low density.

대표청구항 ▼

A material moving pump comprising: a pump housing having interior walls defining a generally horizontally orientated pumping chamber with a rearward end having a material inlet through an upper portion of said walls and a forward end having a material outlet; a pumping ram located in the pumping cha

A material moving pump comprising: a pump housing having interior walls defining a generally horizontally orientated pumping chamber with a rearward end having a material inlet through an upper portion of said walls and a forward end having a material outlet; a pumping ram located in the pumping chamber and including a body portion having a front working face for movement of material in the pumping chamber transferred to the pumping chamber through the material inlet from the rearward end toward the forward end of the pumping chamber, and having side walls configured to conform substantially to the interior cross-sectional shape provided by the interior walls of the pumping chamber and spaced from the interior walls of the pumping chamber by a clearance space; a plurality of ribs located on the walls of the ram orientated transversely to the intended direction of travel of the ram forming a plurality of grooves on the walls of said ram; said ram having forwardly directed nose means, said nose means having means forming at least one groove open toward an interior wall of the pump housing; and means for generally horizontal reciprocation of the ram in the pumping chamber.