Rotary Beam Engine Test Device for Lubricating System Stability

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Solution Overview

Problem

Conventional engine test devices are large and pose safety concerns due to their height, making it difficult to monitor and install engines, and require complex hydraulic systems for balance control, which complicates the testing of engine lubricating systems under rapid acceleration/deceleration conditions.

Innovation Solution

An engine test device that uses a rotary beam, surface plate, and driving unit with a gear system to rotate the engine leftward, rightward, forward, and rearward, incorporating limit switches and stoppers for angle control, and electronic actuators for fixing pins, allowing for stable testing of the engine lubricating system with reduced equipment size and improved visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional engine test device uses large-sized guide rings and a working die positioned 1.5m or more above the ground, then the engine lubricating system stability can be tested under turn and rapid acceleration/deceleration conditions, but safety problems occur during engine installation and the engine cannot be monitored from the control center

Engineering Contradiction:
Improveengine lubricating system stabilityVSAvoidsafety hazard and monitoring difficulty
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent transitions from a conventional horizontal tilting mechanism to a vertical suspension system where the engine is hung from above. This dimensional change allows the engine to be positioned at an appropriate height for both safety and monitoring while still enabling the necessary tilt angles for testing lubricating system stability under turn and rapid acceleration/deceleration conditions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent uses a suspension mechanism that replicates the gravitational and inertial forces acting on an engine during vehicle operation. By suspending the engine and applying controlled tilting forces, the system creates a test environment that copies real-world operating conditions without requiring the engine to be physically mounted in dangerous positions.

Inventive Principle:
Principle #26Copying

2Strength

If two hydraulic pistons are used to operate the surface plate forward and rearward, then the equipment weight can be supported, but the equipment size increases and balance control becomes complex

Engineering Contradiction:
Improveequipment weight supportVSAvoidhydraulic system complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the complex hydraulic piston system from the design. Instead of using two hydraulic pistons to support and move the surface plate, the invention employs a simpler suspension mechanism that naturally supports the engine weight and enables controlled movement without requiring complex balance control systems.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If operators manually fix the surface plate at specific locations of the guide ring during leftward/rightward operation, then the tilting motion can be controlled, but the operation becomes complex and requires additional personnel

Engineering Contradiction:
Improvesurface plate positioningVSAvoidoperational complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements a self-contained suspension mechanism with integrated limit switches and stoppers that automatically control the tilting range. The system serves itself by using the engine's own weight and the mechanical structure to define operational limits, eliminating the need for operators to manually position the surface plate at specific guide ring locations.

Inventive Principle:
Principle #25Self-service

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

The solution enables stable testing of engine lubricating systems under various conditions while reducing equipment size and height, enhancing safety and ease of operation, allowing operators to monitor the engine from a control center and simplifying the installation process.

Implementation Method 1

a gear unit configured between the support beam and the rotary beam to control a rotation angle of the rotary beam through control of driving of a motor

Methodology Applied
Scientific EffectGear mechanism: Gear

Implementation Method 2

the surface plate on which an engine is mounted is inclined forward and rearward through operations of the two hydraulic pistons

Methodology Applied
Scientific EffectHydraulic pressure: Hydraulic Press

Data Source

PatentUS9234816B2Engine test device
Publication Date: 2016.01.12 HYUNDAI MOTOR CO LTD
  • US9234816B2 patent drawing
  • US9234816B2 patent drawing
  • US9234816B2 patent drawing

AI summary

An engine test device for an engine lubricating system includes: a frame having hinge units at upper front and rear sides thereof and an installing die integrally formed with a front lower portion thereof; a rotary beam hinge-connected to the front and rear hinge units of the frame to be rotated leftward and rightward, and having a fixed beam vertically installed at a central portion thereof; a plate-shaped surface plate rotatably mounted to a center of the fixed beam to fix the engine; and a driving unit configured between the installing die and the rotary beam through a gear unit to control a rotation angle of the rotary beam through control of driving of a motor.