Integrated Hydraulic Port Interface Without External Hoses
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Solution Overview
Problem
Conventional hydrostatic transmission systems require external hoses or tubes for fluid connections, which increase assembly complexity and cost, and are prone to leakage over time.
Innovation Solution
A system where hydraulic connections between gear box, hydraulic machine, and variator are made directly through integral ports and channels without external hoses, using seal members to prevent leakage at interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If external hoses or tubes with multiple fittings are used for fluid connections, then fluid transfer between components is achieved, but assembly complexity and cost increase
Solution Approach 1:
The patent merges the fluid connection function directly into the housing structure by integrating ports and internal fluid passages. This eliminates the need for separate external hoses and fittings, reducing both assembly complexity and the number of components while maintaining effective fluid transfer between the variator and transmission.
2Reliability
If external hoses or tubes are used for fluid connections, then fluid transfer is enabled, but potential leakage points increase over time
Solution Approach 1:
The patent extracts the external hoses and fittings from the system by integrating the fluid connection functionality directly into the housing. This eliminates the external connection elements that would otherwise create leakage points, thereby improving reliability while reducing structural complexity.
3Productivity
If multiple fittings and hoses are used for fluid connections, then fluid distribution to multiple ports is achieved, but cost and assembly time increase
Solution Approach 1:
The patent combines multiple fluid connection functions into a single integrated housing structure with internal passages. This eliminates the need for multiple separate hoses and fittings, reducing both manufacturing cost and assembly time while maintaining the ability to distribute fluid to multiple ports.
Data Source
AI summary
Disclosed is a system comprising a variator and a transmission. The transmission housing includes a mounting joint transmission face and one or more transmission ports disposed in the mounting joint transmission face that are fluidly connected in a one-to-one correspondence to one or more transmission channels in the transmission housing. The variator housing may comprise a mounting joint variator face coupled to the mounting joint transmission face and one or more variator ports disposed in the mounting joint variator face. The one or more variator ports may be fluidly connected in a one-to-one correspondence to one or more variator channels in the variator housing. The one or more variator ports are fluidly connected in a one-to-one correspondence to the one or more transmission ports without the use of one or more external hoses to fluidly connect the one or more variator ports to the one or more transmission ports.