Reciprocating Injection Pump Gear Drive for Lower Motor Amp Draw
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing reciprocating injection pumps face inefficiencies and high motor amp draws, lacking effective cam-following and load-bearing arrangements that hinder their performance in pumping applications.
Innovation Solution
A reciprocating injection pump design featuring a rotating gear with substantially circular shape and gear teeth, attached to a rotating motor, which drives a reciprocating block and mangle rack system capable of bidirectional motion, optimized for low voltage operation and high-pressure applications up to 7,000 PSI, using dissimilar metals and friction-reducing designs to enhance efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional reciprocating injection pumps are used, then pumping function is provided, but motor amp draws are high and efficiency is low
Solution Approach 1:
The patent changes the motion profile parameters by using an eccentric cam mechanism instead of conventional crank-connecting rod mechanisms. This alters the velocity and acceleration characteristics of the reciprocating motion, reducing peak forces and motor amp draws while maintaining pumping efficiency. The eccentricity distance and cam profile shape are specifically optimized to achieve smoother motion transitions.
Solution Approach 2:
The patent implements dynamic load distribution through the eccentric cam mechanism, where the load on the motor varies continuously throughout the cycle rather than experiencing sharp peaks. The cam-followers dynamically adjust their position and force application, creating a more balanced and efficient operating condition that reduces overall energy consumption.
2Reliability
If conventional pump designs are used, then basic pumping is achieved, but cam-following and load-bearing arrangements are ineffective
Solution Approach 1:
The patent segments the load-bearing function across multiple cam-followers that independently track different portions of the cam profile. This distribution of loading improves reliability as each follower handles a portion of the total load, and the modular arrangement allows for easier maintenance and replacement without affecting the entire system.
Solution Approach 2:
The eccentric cam acts as an intermediary mechanism that transforms rotational motor motion into optimized reciprocating motion. It mediates between the motor and the pump components, providing smooth motion control and reducing direct impact loads, thereby improving cam-following effectiveness while managing complexity through a single well-designed intermediate component.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design reduces motor amp draws by 30-40% compared to competitor pumps, achieving increased pumping efficiency and reliability across various fluid injection applications.
Implementation Method 1
A reciprocating injection pump design featuring a rotating gear with substantially circular shape and gear teeth, attached to a rotating motor, which drives a reciprocating block and mangle rack system
Implementation Method 2
using dissimilar metals and friction-reducing designs to enhance efficiency
Data Source
AI summary
A reciprocating injection pump with a reciprocating block driven by a rotating gear, the gear having a substantially circular shape with gear teeth formed on the rotating gear the rotating gear is attached to a rotating motor.