Slag reduction pump
First Claim
Patent Images
1. A grinder pump assembly comprising:
- a plurality of diffusers, wherein each of the plurality of diffusers comprises;
a lower face having a plurality of lower contact surfaces and lower flow channels;
a plurality of diffuser vanes; and
a cup having upper contact surfaces and upper flow channels;
an impeller having a plurality of upper vanes, wherein the upper vanes are configured to rotate in proximity with the lower contact surfaces on the lower face; and
a diffuser cap positioned upstream of the impeller, wherein the diffuser cap includes cap contact surfaces and cap flow channels.
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Accused Products
Abstract
A grinder pump assembly includes at least one grinder pump stage that has a diffuser and an impeller. The grinder pump assembly also includes a diffuser cap that includes cap contact surfaces. The impeller includes a plurality of upper vanes and lower vanes. The diffuser includes a plurality of lower contact surfaces, a plurality of diffuser vanes and plurality of upper contact surfaces. The upper vanes of the impeller are configured to rotate in proximity with the lower contact surfaces on the diffuser. The lower vanes of the impeller are configured to rotate in proximity with the cap contact surfaces. Multiple grinder pump stages may be used within a single grinder pump assembly.
47 Citations
5 Claims
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1. A grinder pump assembly comprising:
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a plurality of diffusers, wherein each of the plurality of diffusers comprises; a lower face having a plurality of lower contact surfaces and lower flow channels; a plurality of diffuser vanes; and a cup having upper contact surfaces and upper flow channels; an impeller having a plurality of upper vanes, wherein the upper vanes are configured to rotate in proximity with the lower contact surfaces on the lower face; and a diffuser cap positioned upstream of the impeller, wherein the diffuser cap includes cap contact surfaces and cap flow channels. - View Dependent Claims (2)
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3. A downhole pumping system comprising:
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a motor; a seal section connected to the motor; a primary pump assembly powered by the motor; and a grinder pump assembly connected between the seal section and the primary pump assembly, wherein the grinder pump assembly comprises; a plurality of diffusers, wherein each of the plurality of diffuser comprises; a lower face having a plurality of lower contact surfaces and lower flow channels; a plurality of diffuser vanes; and and a cup having upper contact surfaces and upper flow channels; and an impeller, wherein the impeller comprises; a plurality of upper vanes that are configured to rotate in proximity with the lower contact surfaces on the lower face of the diffuser. - View Dependent Claims (4, 5)
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Specification