Hydraulic Tensioner Vent Opening Layout for Easier Gas Removal
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Solution Overview
Problem
Existing screw tensioning devices face difficulties in efficiently venting the fluid chamber due to the bulky design and flat arrangement of the effective portion, making it hard for operators to remove gases properly.
Innovation Solution
The device includes a vent opening positioned in the region of the engagement section, allowing for improved accessibility and easier venting by positioning the device upside down, ensuring the vent opening is at a higher position relative to the fluid chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vent opening is positioned in the effective portion, then the fluid chamber can be vented, but the bulky design and flat arrangement make it difficult for operators to properly remove gases
Solution Approach 1:
The patent inverts the conventional vent opening position from the effective portion to the engagement section. This inversion allows the device to be positioned upside down during venting operations, making the vent opening easily accessible at the highest point of the fluid chamber, thereby resolving the contradiction between device complexity and ease of operation.
Solution Approach 2:
The patent changes the spatial dimension of the vent opening position from the effective portion (which is flat and hard to access) to the engagement section (which protrudes and is easily accessible). This dimensional change allows operators to easily reach the vent opening without being constrained by the bulky design of the effective portion.
2Power
If the effective portion is made flat for adequate force multiplication, then hydraulic efficiency is improved, but accessibility for venting becomes difficult
Solution Approach 1:
The patent segments the device into distinct functional portions: the effective portion maintains its flat design for force multiplication, while the engagement section with the vent opening is positioned separately to provide accessibility. This segmentation allows both requirements to be satisfied simultaneously without compromise.
Solution Approach 2:
The engagement section acts as an intermediary between the effective portion and the external environment. By positioning the vent opening in the engagement section rather than directly in the effective portion, the patent provides a accessible interface for venting while preserving the flat design of the effective portion needed for hydraulic efficiency.
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 configuration simplifies the venting operation, enhancing the device's operability and making it easier for operators to remove gases from the fluid chamber effectively.
Implementation Method 1
an actuating unit having a fluid chamber for receiving a fluid, wherein the actuating unit is configured to manipulate a volume of the fluid chamber so as to move the engagement element relative to the support element
Implementation Method 2
positioning the device upside down, ensuring the vent opening is at a higher position relative to the fluid chamber
Data Source
AI summary
The present invention refers to a device for tensioning a connecting element fastened to a component to be tightened, which comprises an engagement element having an engagement section receiving and holding the connecting element, a support element configured to support the device against the component, and an actuating unit having a fluid chamber for receiving a fluid, wherein the actuating unit is configured to manipulate a volume of the fluid chamber so as to move the engagement element relative to the support element. The device further comprises a vent opening fluid-communicatively connectable to the fluid chamber which is disposed in the region of the engagement section.