Manual Emergency Hydraulic Circuit With Closed-Loop Pump Switching
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Solution Overview
Problem
Existing hydraulic systems in submarines, such as those used for rudders, require manual operation during failures, which is inefficient due to the need for a single hand pump, limited reservoir refilling, and time-consuming realignment of multiple components.
Innovation Solution
A hydraulic connection device with a switching valve and a manually operated pump, allowing simultaneous operation of multiple components by creating a closed system for emergency operation, eliminating the need for additional fluid tanks and reducing realignment time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If a single hand pump is used to manually operate hydraulic components, then the system requires minimal space and weight, but the time required to realign multiple components increases significantly
Solution Approach 1:
The invention divides the hydraulic system into multiple independent pump units, each capable of operating a specific hydraulic component. This segmentation allows simultaneous operation of multiple components without requiring a single large pump, thereby reducing the time penalty while keeping individual pump weights manageable.
Solution Approach 2:
The invention combines multiple pump units with a common reservoir and control system into an integrated emergency hydraulic system. This merging allows the pumps to share fluid storage and control mechanisms, reducing overall system weight compared to having completely separate systems for each component.
2Volume of moving object
If a hand pump with a limited reservoir is used, then the system requires minimal space, but the reservoir must be refilled during operations which requires additional time and effort
Solution Approach 1:
The common reservoir serves multiple functions: it stores hydraulic fluid for all pump units, acts as a refilling source for any individual pump, and provides a centralized fluid management system. This multi-functionality eliminates the need for separate reservoirs for each pump, reducing total volume while preventing the need for repeated refilling operations.
3Productivity
If multiple manually operated pumps are installed for each component, then simultaneous operation of multiple components is enabled, but the device complexity and number of components increases
Solution Approach 1:
Multiple pump units are merged into a unified system sharing a common reservoir, suction line, and control architecture. This reduces the number of independent components that would otherwise be required, simplifying installation and maintenance while preserving the capability for simultaneous operation of multiple hydraulic components.
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
Facilitates faster and more efficient manual operation of hydraulically actuated components by providing simultaneous actuation and eliminating the need for additional fluid tanks, thus enhancing operational speed and reducing weight and space requirements.
Implementation Method 1
a manually operated hydraulic pump (70) for emergency operation, wherein the manually operated hydraulic pump (70) has a pump cylinder chamber (80) with a pump inlet (81) and a pump outlet (82)
Implementation Method 2
The hydraulic connection device includes a switching valve (60). The switching valve has at least, preferably exactly, a first position and a second position
Implementation Method 3
In the first position, the switching valve (60) fluidly connects the hydraulic supply inlet (20) to the hydraulic device inlet (40) and the hydraulic device outlet (50) to the hydraulic return outlet (30)
Data Source
Figure 1
Figure 2
AI summary
The present invention relates to a hydraulic connection device 10, wherein the hydraulic connection device 10 has a hydraulic inlet 20 and a hydraulic return outlet 30, wherein the hydraulic connection device 10 has a hydraulic device inlet 40 and a hydraulic device outlet 50, wherein the hydraulic connection device 10 has a switching valve 60, wherein the switching valve 60 has a first position 61 and a second position 62, wherein in the first position 61 the switching valve 60 fluidically connects the hydraulic inlet 20 to the hydraulic device inlet 40 and the hydraulic device outlet 50 to the hydraulic return outlet 30, wherein the hydraulic connection device 10 has a manually operated hydraulic pump 70, wherein the hydraulic pump 70 has at least one pump cylinder chamber 80, wherein the pump cylinder chamber 80 has at least one pump inlet 81 and one pump outlet 82.wherein the pump cylinder chamber 80 is connected to the switching valve 60 such that in the second position 62 of the switching valve 60 the pump outlet 82 is connected to the hydraulic device inlet 40 and the hydraulic device outlet 50 is connected to the pump inlet 81.