Four-Valve High Pressure Pump Lateral Housing Fastening
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Solution Overview
Problem
Current four-valve high-pressure pumps are heavy and difficult to handle and transport, and maintenance of the valves is laborious due to the axial bracing of the inlet and outlet housing parts, which requires extensive dismantling.
Innovation Solution
The inlet and outlet housing parts are laterally fastened to the cylinder blocks using separate fastening means, allowing for radial bracing and easy detachment for transport or maintenance, with the option to pivot these parts for access to the valves without complete removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the inlet housing part and outlet housing part are axially braced by cylinder blocks covered in the radial direction, then the structural strength and stability are improved, but the pump becomes very heavy and difficult to handle and transport
Solution Approach 1:
The pump is divided into modular components: a central cylinder block and separately attachable inlet/outlet housing parts. This segmentation allows the heavy axial bracing structure to be replaced with lighter lateral fastening, while maintaining structural integrity through modular assembly.
2Stability of the object's composition
If the inlet housing part and outlet housing part are axially braced by cylinder blocks, then the structural stability is improved, but the pump requires extensive dismantling for valve maintenance
Solution Approach 1:
The housing parts are separated from the cylinder block as independent modules that can be laterally detached. This allows maintenance personnel to access valves by simply removing the lateral fastening means, without needing to dismantle the entire axial bracing structure.
Solution Approach 2:
The fastening system transitions from a fixed axial bracing configuration to a dynamically adjustable lateral fastening system. The inlet/outlet housing parts can be quickly attached and detached laterally, enabling flexible access for maintenance while maintaining operational stability.
3Weight of moving object
If the inlet housing part and outlet housing part are laterally fastened to the cylinder blocks, then the pump weight is reduced and handling is easier, but the structural bracing changes from axial to radial direction
Solution Approach 1:
Instead of the conventional axial bracing approach where cylinder blocks cover housing parts radially, the invention inverts the arrangement: housing parts are laterally fastened to the cylinder block. This inversion reduces weight while maintaining structural strength through the alternative fastening geometry.
4Ease of repair
If the inlet housing part and outlet housing part are laterally fastened with separate fastening means, then the valve maintenance becomes easier, but the device complexity increases due to additional fastening components
Solution Approach 1:
The lateral fastening means serves multiple functions: it provides structural bracing, enables easy detachment for maintenance, and allows rapid reattachment. This multi-functionality compensates for the added complexity by consolidating several requirements into a single fastening mechanism.
Data Source
Figure 1~2
Figure 3~6
Figure 7~10
AI summary
A four-valve high pressure pump (1) comprises in the known fashion a drive (2) and a pump part (3) with a piston (6) capable of moving in a cylinder (9). Two cylinder blocks (10, 11) are arranged on the ends of the cylinder (9), through which blocks a transition duct (12, 13) runs. The inlet (24) for the medium to be pumped is provided on an inlet casing part (17). A medium duct (22) communicating with the inlet (24) extends through the inlet casing part (17), in which duct a non-return valve (25, 26) is arranged either side of the opening for the inlet (24) and which communicates at each opposing end with the interior of the cylinder (9) via a transition duct (12, 13) of a cylinder block (10, 11). An outlet casing part (18) is constructed in a similar fashion, but has an outlet (27) for the medium to be pumped instead of the inlet (24). The inlet casing part (17) and/or the outlet casing part (18) is detachably fastened to the cylinder blocks (10, 11) at the side in such a manner that it can be removed without further dismantling the pump part (3). This allows the four-valve high pressure pump (1) to be broken down into smaller, lighter units for transport purposes. Additionally, this makes servicing the non-return valves (25, 26, 28, 29) easier.