High-Pressure Pump Housing Segmentation for Cost Reduction
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Solution Overview
Problem
High-pressure cleaning pumps face challenges in cost-effective manufacturing and simplified production technology due to restricted space in the pump housing, which complicates the provision of individual lines and valve spaces, leading to increased costs and weight limitations.
Innovation Solution
The pump housing is designed with a rear and front housing part that join together, with the suction line section located between them, allowing for easier manufacturing and optimization of line arrangements, including a curved course for the suction line section that avoids valve spaces, and using sealing rings to seal the joint area cost-effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a small pump housing is selected to reduce weight, then the weight of the pump is reduced, but the space for arranging lines and valve spaces becomes restricted, increasing manufacturing complexity and costs
Solution Approach 1:
The pump housing is divided into a front housing part and a rear housing part that can be manufactured separately and then joined together. This segmentation allows each part to be optimized independently for weight and manufacturing, while the joint area provides accessible space for routing the suction line section without interfering with valve spaces, thus reducing overall manufacturing complexity despite the compact size
Solution Approach 2:
The suction line section is routed through the joint area between front and rear housing parts, utilizing the three-dimensional space created by the housing segmentation. This dimensional approach allows the suction line to bypass restricted areas and connect to the bypass line opening without increasing the pump's footprint or weight, while maintaining manufacturing simplicity
2Weight of moving object
If individual lines and valve spaces are provided in a compact pump housing, then the pump remains lightweight, but the production technology becomes more complex and costs increase
Solution Approach 1:
By segmenting the housing into front and rear parts with a defined joint area, the patent simplifies the arrangement of lines and valve spaces. The suction line section can be clearly routed through the joint area to connect with the bypass line opening, avoiding complex routing within confined spaces and reducing production technology complexity while maintaining a lightweight design
Solution Approach 2:
The joint area between front and rear housing parts serves as an intermediary space that facilitates the routing of the suction line section. This intermediate zone acts as a buffer that simplifies the connection between the suction line and bypass line, reducing the overall device complexity without compromising the lightweight characteristic
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
This design reduces manufacturing costs, allows for a more efficient use of materials, and results in a lighter, more portable high-pressure cleaning device with reduced energy consumption and heat losses by enabling the pump to switch between operation and recirculation modes based on nozzle head status.
Implementation Method 1
an overflow valve (72), the valve body (90) of which is connected to an actuator (78), depending on the flow rate of the cleaning liquid in the pressure line (50), moves the valve body (90) into a closed position or an open position
Data Source
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AI summary
The invention relates to a pump for a high-pressure cleaning device, designed to deliver a cleaning liquid. Said pump comprises a pump housing that contains at least one pump chamber into which at least one reciprocally movable piston is plunged, and which is connected to a suction line by means of at least one inlet valve, and to a pressure line by means of at least one outlet valve. Said pump also comprises a bypass line leading from the pressure line to the suction line and containing an overflow valve. The valve body of said overflow valve is connected to an actuator which shifts the valve body to a closed or an open position depending on the flow rate of the cleaning liquid in the pressure line. According to the invention, in order to make production of the pump as cost-effective as possible, the pump housing has a rear housing section and a front housing section which are joined together, and the suction line has a section running through the joint region between the two sections, into which the bypass line opens.