Integrated Hydraulic Actuator Layout for Reduced Installation Space
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Solution Overview
Problem
Existing hydraulic linear actuators have a high number of components and require significant installation space due to separate housings and components for the cylinder, pump, and control block.
Innovation Solution
The hydraulic linear actuator integrates the pump within the control block, eliminating the need for a separate pump housing and reducing the number of components by incorporating the pump, control valves, and safety valves within a compact unit, with the drive shaft mounted on both sides of the control block, and using 3D-printed sand cores for optimized channel formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pump is arranged in a separate housing from the control block, then the pump can be properly supported and maintained, but the number of components increases and installation space is consumed
Solution Approach 1:
The patent merges the pump and control block into a single integrated unit. The pump is positioned inside the control block housing, eliminating the need for a separate pump housing. This integration reduces the total number of components while maintaining proper pump support through the control block structure and enabling combined maintenance of both components in one location.
2Area of stationary object
If separate housings are used for the cylinder, pump, and control block, then each component can be optimized independently, but the overall installation space increases
Solution Approach 1:
The patent combines the pump housing with the control block housing to form a single integrated housing structure. This merging eliminates the need for separate pump and control block housings, significantly reducing the overall installation space while allowing independent optimization of internal pump and control valve arrangements within the unified structure.
Solution Approach 2:
The pump is nested within the control block housing space. The pump mechanism is positioned inside the control block, utilizing the internal volume of the control block housing. This nesting arrangement allows both components to occupy the same spatial envelope, minimizing the overall footprint while maintaining independent design freedom for each component.
3Loss of time
If multiple separate components are used, then each component can be independently maintained, but the time and effort for installation and maintenance increases
Solution Approach 1:
By integrating the pump and control block into a single unit, the patent reduces installation time to one operation instead of multiple separate installations. Similarly, maintenance can be performed on both components during a single service intervention, reducing total maintenance time while the modular design still allows for independent access and replacement of individual components when needed.
Data Source
AI summary
A hydraulic actuator includes a cylinder, a pump, an electric motor and a central block. The mechanism or the rotating parts of the pump are directly installed in an interior of the block, and the drive shaft of the pump is correspondingly mounted in walls or in covers of the block.