Injection pump
AssigneeTexas Injection Corp
InventorMichael Todd Warren
Life of this patent
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Abstract
The present invention is directed to an improved liquid additive injection pump that of a type wherein a variety of additive volumes may be metered into a fluid stream or fluid source by adjusting the plunger stroke with an easily accessible adjustment bushing without changing or interrupting, the power supplied to the pump during operation. A robust roller bearing drive is used to power the plunger(s) providing fluid suction and discharge as the plunger(s) cycle, while ensuring accurate and reliable additive injection rates. A spring energized seal eliminates overtightened packing by field technicians. An easily accessible adjustment bushing allows the user to modify the piston stroke length, thereby increasing, decreasing or stopping the volumetric flow of injected additive into a fluid stream or storage container.
Claims10
An injection pump apparatus, comprising:
- a main body housing a plunger carriage assembly in mechanical communication with a motive power source, the plunger carriage assembly comprising an offset bearing, carriage block, bearing carrier and multiple roller bearings housed within the main body housing;
- a first pump head adjuster block attached to a first end of the main body housing and a second pump head adjuster block attached to an opposing second end of the main body housing wherein each pump head adjuster block houses an adjustment bushing in mechanical communication with a notched head on an overshaft screw threadedly connected to a plunger with a shaft sleeve, said plunger in mechanical communication with the plunger carriage assembly wherein each adjustment bushing is individually adjustable to separately modify each individual plunger stroke length while the pump is operating;
- and,
- a pump head attached to each of the first and second pump head adjuster blocks wherein the first and second pump heads include a suction valve and a discharge valve threadedly attached to the first and second pump heads.
Dependencies are inferred from the claim text.