Power plant and vehicle
By using a vortex tube in the CNG fuel engine to provide hot gas to heat the pressure reducer, the problem of excessive water pump power caused by coolant heating is solved, resulting in better pressure reduction and vehicle reliability.
CN224478992UActive Publication Date: 2026-07-10WEICHAI POWER CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEICHAI POWER CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
When commercial vehicles with existing CNG fuel engines use coolant to heat the pressure reducer in low-temperature environments, the water pump power is excessive, which increases the vehicle's fuel consumption and reduces the engine's lifespan and failure rate.
Method used
A vortex tube is used to provide hot air to heat the pressure reducer, replacing coolant heating. Combined with temperature sensors and control valves, intelligent temperature control of the engine and pressure reducer is achieved, reducing water pump power consumption.
Benefits of technology
The pressure reducing effect of the pressure reducer was improved, the power consumption of the water pump was reduced, and the reliability and economy of the whole vehicle were improved.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224478992U_ABST
Abstract
This utility model belongs to the field of vehicle technology, specifically relating to a power unit and a vehicle. The power unit of this utility model includes an air source assembly and an engine assembly. The air source assembly includes a vortex tube, which has a hot port end for outputting hot air. The engine unit includes an engine, a fuel container, and a pressure reducer. The pressure reducer has a heating channel, with the hot port end connected to the inlet end of the heating channel. The outlet end of the heating channel is connected to the outside. The outlet end of the fuel container is connected to the inlet end of the pressure reducer, and the outlet end of the pressure reducer is connected to the engine. By using the power unit of this technical solution, the hot port end of the vortex tube of the air source assembly can connect to the heating channel of the pressure reducer, thereby improving the pressure reduction effect of the pressure reducer. Compared with the existing method of using coolant for cooling, this method can improve the pressure reduction effect without increasing the power consumption of the water pump, thus improving reliability.
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