A carbon canister gasoline workability test system

By designing the oil and gas tank, oil supply components, charcoal canister body, and nitrogen supply components, and controlling the flow ratio of nitrogen and gasoline vapor, the problem of inaccurate nitrogen and gasoline vapor ratio in existing technologies has been solved, thus improving the accuracy of testing the gasoline working capacity of automotive charcoal canisters.

CN116298219BActive Publication Date: 2026-06-23CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD
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Patent Information

Application Number
CN202310432651.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-21
Publication Date
2026-06-23
Estimated Expiration
2043-04-21

AI Technical Summary

Technical Problem

In existing charcoal canister gasoline performance testing systems, the ratio of nitrogen to gasoline vapor cannot be accurately controlled, resulting in inaccurate simulation of automotive application scenarios and consequently affecting the accuracy of the test.

Method used

A charcoal canister gasoline working capacity testing system was designed, including an oil vapor tank, an oil supply component, a charcoal canister body, pipelines, and a nitrogen supply component. The flow ratio of nitrogen and gasoline vapor is controlled by a switching component to ensure accurate simulation of automotive application scenarios.

Benefits of technology

This technology improves the accuracy of testing the gasoline performance of automotive charcoal canisters by precisely controlling the ratio of nitrogen to gasoline vapor.

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Abstract

The application provides a gasoline working capacity test system for a carbon tank. The system comprises an oil vapor tank body, a gasoline supply assembly for supplying gasoline into the oil vapor tank body, a carbon tank body for adsorbing gasoline vapor, a first pipeline for connecting the oil vapor tank body and the carbon tank body, a first branch pipeline connected with the first pipeline, a nitrogen supply assembly for supplying nitrogen into the first branch pipeline, and a switch assembly for controlling the flow of nitrogen and gasoline vapor. In use, gasoline is converted into gasoline vapor by an oil vapor generating assembly in the oil vapor tank body, and the gasoline vapor is supplied into the first pipeline through a first vapor outlet. The nitrogen supply assembly supplies nitrogen into the first pipeline through the first branch pipeline. The nitrogen and the gasoline vapor are mixed and then enter the carbon tank body. The application can control the proportion of nitrogen and gasoline vapor entering the carbon tank body through the switch assembly, thereby solving the problem of inaccurate nitrogen and gasoline vapor ratio.
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