Hydraulic Pressure Amplifier with Variable Throttling Feed
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Solution Overview
Problem
Existing hydraulic pressure amplifier arrangements have complex constructions due to sequence valves that require pressure thresholds for intensifier section operation, leading to increased complexity in housing design.
Innovation Solution
Incorporating variable throttling resistance means in the feeder arrangement, which adjusts based on pressure differences within the pressure amplifier arrangement, allowing for automatic adjustment of flow resistance to optimize intensifier section operation without the need for sequence valves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If sequence valves are used to control pressure thresholds for intensifier section operation, then pressure control is improved, but device complexity increases due to complicated housing design
Solution Approach 1:
The patent removes the sequence valve from the system entirely and replaces it with a check valve and variable orifice arrangement. This extraction of the complex pressure threshold control mechanism simplifies the housing design while maintaining pressure control functionality through the alternative flow resistance-based approach.
Solution Approach 2:
The patent introduces a variable orifice as an intermediary element that mediates between the supply pressure and the intensifier section. This variable orifice provides continuous flow resistance adjustment, replacing the discrete pressure threshold control of sequence valves, thereby simplifying the overall structure while maintaining pressure control.
2Productivity
If the intensifier section operates at varying pressures without throttling, then productivity is improved, but energy losses increase due to unnecessary intensifier operation
Solution Approach 1:
The patent employs a variable orifice that dynamically adjusts its flow resistance based on operating conditions. This dynamic adjustment allows the system to optimize the balance between intensifier section operation speed and energy efficiency, reducing unnecessary operation when full productivity is not required while maintaining high productivity when needed.
Solution Approach 2:
The patent changes the flow resistance parameter of the feeder arrangement by using a variable orifice. This parameter change allows continuous adjustment of the intensifier section's operation, enabling the system to reduce energy losses from unnecessary operation while maintaining the capability for high-speed operation when productivity demands require it.
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 simplifies the construction of the hydraulic pressure amplifier by enabling the intensifier section to operate at varying pressures with reduced operational speed, mimicking increased flow resistance when not needed, thereby stabilizing the system and reducing unnecessary losses.
Implementation Method 1
the feeder arrangement comprises throttling means (21), wherein the throttling means have a variable throttling resistance
Implementation Method 2
a pressure outlet A2 connected to the supply port A1 via check valve means (3)
Implementation Method 3
an intensifier section (5) having a high pressure piston (6) in a high pressure cylinder (7) which is connected to the high pressure port, a low pressure piston (8) in a low pressure cylinder (9) and connected to the high pressure piston (6)
Data Source
Figure 1
Figure 2
AI summary
A hydraulic pressure amplifier arrangement (1) is described comprising a supply port (A1), a pressure outlet (A2) connected to the supply port via check valve means (3), a tank port (B1), an intensifier section (5) having a high pressure piston (6) in a high pressure cylinder (7) which is connected to the pressure outlet (A2), a low pressure piston (8) in a low pressure cylinder (9) and connected to the high pressure piston (6), an intermediate space (11) between the high pressure piston (6) and the low pressure piston (8), a control valve (12) controlling a pressure in the low pressure cylinder (9), and a feeder arrangement of the intensifier section (5) including an input connection (19) connected to the supply port (A1) and a return connection (20) connected to the tank port (B1). Such a pressure amplifier arrangement should have a simple construction. To this end the feeder arrangement (19, 20) comprises throttling means (21).