Hydrodynamic-Mechanical Transmission Layout for Compact High Power
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Solution Overview
Problem
Existing hydrodynamic-mechanical power transmission devices are large and complex, making them inefficient for transmitting high power while maintaining a compact design.
Innovation Solution
A hydrodynamic-mechanical power transmission device featuring a hydrodynamic converter and a superimposition transmission designed as a planetary transmission, with an additional transmission stage between the superimposition transmission and the output shaft, allowing for compact and efficient high-power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If existing hydrodynamic-mechanical power transmission devices are used to transmit high power, then the power transmission capability is improved, but the device size and structural complexity increase
Solution Approach 1:
The patent embeds the hydrodynamic converter within the planetary transmission structure, where the converter is positioned inside the planetary gear assembly. This nesting allows the hydrodynamic power transmission and mechanical planetary transmission to share common structural elements and space, achieving high power transmission without proportional increase in device size and complexity
Solution Approach 2:
The patent combines the hydrodynamic converter and planetary transmission into a unified power transmission system where both mechanisms work simultaneously. The input shaft drives both the pump impeller of the converter and the planetary transmission, merging two power transmission paths into one integrated structure that achieves high power capability without requiring separate large-scale components
2Power
If existing hydrodynamic-mechanical power transmission devices are used to transmit high power, then the power transmission capability is improved, but the device volume increases
Solution Approach 1:
The hydrodynamic converter is nested within the planetary transmission assembly, with the converter housing and components positioned inside the planetary gear structure. This allows the high power transmission capability of both the hydrodynamic converter and planetary transmission to be achieved within a compact volume by sharing structural space
Solution Approach 2:
The patent utilizes the radial and axial dimensions efficiently by arranging the hydrodynamic converter and planetary transmission components in a three-dimensional configuration. The converter is positioned radially inside the planetary transmission, and components are stacked axially, transforming a potentially large single-dimension layout into a compact multi-dimensional structure
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 efficient transmission of high power in a compact and simple design, allowing for easy adaptation to various transmission ratios and application requirements.
Implementation Method 1
a hydrodynamic converter (4), including a pump impeller (P) and a turbine wheel (T)
Implementation Method 2
a superimposition transmission (5) designed as a planetary transmission, including a ring gear (8), a sun gear (9) and a planet carrier (11) with several planets (10)
Data Source
AI summary
A hydrodynamic-mechanical power transmission device includes: an input shaft; an output shaft; a basic transmission configuration including a hydrodynamic converter and a superimposition transmission, the hydrodynamic converter including a pump impeller and a turbine wheel, the superimposition transmission being formed as a planetary transmission including a ring gear, a first sun gear, and a planet carrier with a plurality of planetary gears, the input shaft being connected to the pump impeller and the ring gear, the turbine wheel being connected to the first sun gear, the output shaft being connected at least indirectly to the planet carrier; and an additional transmission stage, which is arranged in a direction of a power transmission between the superimposition transmission and the output shaft, the additional transmission stage including an input and an output, the input being connected to the planet carrier, the output being connected to or forming the output shaft.