Integrated Sequence Valve Cylinder Layout for Lower Pressure Loss
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Solution Overview
Problem
The existing sequence valve systems for cylinder devices are complex and cumbersome due to the branching of passages on a stationary stand, leading to a complicated structure for pressure fluid supply and discharge.
Innovation Solution
A cylinder device design where the sequence valve is attached to an intermediate portion of the supply and discharge passage within the housing, eliminating the need for sequence valves and dedicated passages on the stationary stand, and directly connecting branch passages to cylinder devices, simplifying the passage line and reducing pressure loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sequence valves are provided at intermediate portions of passage lines on a stationary stand, then pressure fluid can be supplied to multiple cylinder devices, but the passage line structure becomes complicated and occupies wide space
Solution Approach 1:
The sequence valve is merged with the cylinder device by attaching it to the supply and discharge passage of the housing, forming an integrated unit. This eliminates the need for separate sequence valves on the stationary stand and simplifies the passage line structure while maintaining the ability to supply pressure fluid to multiple cylinder devices through the housing's supply and discharge ports
2Reliability
If sequence valves and dedicated passages are provided on a stationary stand, then pressure fluid control is achieved, but the overall system occupies wide space and has complicated structure
Solution Approach 1:
The sequence valve is integrated into the housing structure by attaching it to the supply and discharge passage, combining two separate components into one compact unit. This reduces the space occupied on the stationary stand while preserving the pressure fluid control capability through the sequence valve's pressure-based activation mechanism
Solution Approach 2:
The sequence valve is nested within the housing structure, utilizing the existing supply and discharge passage as its mounting location. This nesting approach allows the sequence valve to be housed within the overall cylinder device footprint, reducing the total space required on the stationary stand
3Adaptability or versatility
If multiple branch passages are provided on a stationary stand, then multiple cylinder devices can be connected, but the passage line becomes complicated and pressure loss increases
Solution Approach 1:
Multiple cylinder devices are connected through the housing's supply and discharge ports rather than through multiple branch passages on the stationary stand. This merging of connection points reduces the total passage length and number of connections, thereby reducing pressure loss while maintaining the ability to connect multiple cylinder devices
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 simplifies the passage line, reduces pressure loss, and enhances the responsiveness of the cylinder device to valve-opening operations by shortening the passage length and eliminating unnecessary components, resulting in a more efficient fluid supply and discharge system.
Implementation Method 1
The valve member is biased rightward by a pressure-setting spring toward the valve seat
Implementation Method 2
when the pressure of the pressurized oil in the primary side chamber exceeds a set pressure, the pressurized oil in the primary side chamber moves the valve member leftward for valve opening
Implementation Method 3
When pressurized oil flows from the secondary side chamber to the primary side chamber, a check valve provided in the valve member is opened
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
An actuation chamber (2) provided in a housing (1) is communicatively connected to a supply and discharge port (6) via a pressurized oil supply and discharge passage (7). A valve case (11) of a sequence valve (10) is attached to an attachment hole (8) provided at an intermediate portion of the supply and discharge passage (7). A valve seat (25) is provided in a cylindrical hole (20) provided in the valve case (11). A valve member (26) is biased leftward toward the valve seat (25) by a pressure-setting spring (31). When pressure of pressurized oil supplied to a first portion of the supply and discharge passage (7) which is close to the supply and discharge port (6) exceeds a set pressure, the pressurized oil moves the valve member (26) rightward for valve opening, against the pressure-setting spring (31).