CN220319695U - Engine waste heat recovery arrangement structure and vehicle - Google Patents
Engine waste heat recovery arrangement structure and vehicle Download PDFInfo
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- CN220319695U CN220319695U CN202322281954.1U CN202322281954U CN220319695U CN 220319695 U CN220319695 U CN 220319695U CN 202322281954 U CN202322281954 U CN 202322281954U CN 220319695 U CN220319695 U CN 220319695U
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- waste heat
- water jacket
- heat recovery
- liquid outlet
- outlet end
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- 239000002918 waste heat Substances 0.000 title claims abstract description 86
- 238000011084 recovery Methods 0.000 title claims abstract description 78
- 239000003507 refrigerant Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 190
- 239000007788 liquid Substances 0.000 claims description 162
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 210000000476 body water Anatomy 0.000 description 18
- 239000000110 cooling liquid Substances 0.000 description 3
- 238000007872 degassing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses an engine waste heat recovery arrangement structure, which comprises: the engine waste heat recovery system is used for recovering waste heat of an engine and comprises a first waste heat recovery loop and a second waste heat recovery loop; the battery pack waste heat recovery system is used for recovering waste heat of a battery pack and comprises a first battery pack waste heat recovery loop and a second battery pack waste heat recovery loop; the first loop is used for radiating heat of the engine; the second loop is a flow path of the refrigerant when no waste heat recovery is required. Compared with the prior art, the utility model utilizes the three-way valve to distribute the refrigerant flowing through the EGR cooler, thereby realizing the short heating time and full recovery of waste heat in winter; when no waste heat is recovered, the refrigerant flow of the engine radiator is improved, the heat exchange coefficient and the refrigerant flow of the radiator are increased, the heat dissipation power of the radiator is improved, and the failure risk of the extreme heat balance working condition in summer is reduced.
Description
Technical Field
The utility model relates to the technical field of hybrid electric vehicles, in particular to an engine waste heat recovery arrangement structure and a vehicle.
Background
The cooling liquid flow path of the traditional engine cooling system is a water pump-cylinder body water jacket-cylinder gasket-cylinder cover water jacket-warm air core (or an EGR cooler or a temperature regulator seat-radiator) -water pump water inlet, and the warm air core, the EGR cooler and the temperature regulator seat are in a parallel connection state. The general warm air core adopts a normal-way structure, no matter in spring, summer, autumn and winter, the warm air core is provided with cooling liquid, the cooling liquid flow of the radiator under the condition of high temperature in summer is shunted, the heat exchange performance of the radiator is reduced, and the heat balance test under the limit working condition is at risk.
Disclosure of Invention
The utility model aims to provide an engine waste heat recovery arrangement structure and a vehicle, so as to solve the problems in the prior art, ensure that the waste heat recovery structure of an engine cooling system is reasonable, improve the heat dissipation performance and reduce the failure risk of extreme heat balance working conditions in summer.
In a first aspect, the present utility model provides an engine waste heat recovery arrangement comprising:
the engine waste heat recovery system is used for recovering waste heat of an engine and comprises a first waste heat recovery loop and a second waste heat recovery loop;
the battery pack waste heat recovery system is used for recovering waste heat of a battery pack and comprises a first battery pack waste heat recovery loop and a second battery pack waste heat recovery loop;
the first loop is used for radiating heat of the engine;
the second loop is a flow path of the refrigerant when no waste heat recovery is required.
The engine waste heat recovery arrangement structure as described above, preferably, the first waste heat recovery circuit includes a first water pump, a cylinder water jacket, a cylinder head water jacket, an EGR cooler, an electromagnetic three-way valve, a PTC heater, a second water pump, a warm air core, and an electronic control valve, wherein a liquid outlet end of the first water pump is communicated with a liquid inlet end of the cylinder water jacket, a liquid outlet end of the cylinder water jacket is communicated with a liquid inlet end of the cylinder head water jacket, a liquid outlet end of the cylinder head water jacket is communicated with a liquid inlet end of the EGR cooler, a liquid outlet end of the EGR cooler is communicated with a first valve port of the electromagnetic three-way valve, a second valve port of the electromagnetic three-way valve is communicated with a liquid inlet end of the PTC heater, a liquid outlet end of the second water pump is communicated with a liquid inlet end of the warm air core, a liquid outlet end of the warm air core is communicated with a liquid inlet end of the electronic control valve, and a liquid outlet end of the electronic control valve is communicated with a liquid inlet end of the first water pump.
In the engine waste heat recovery arrangement structure, the first temperature collector is preferably arranged on the warm air core.
The engine waste heat recovery arrangement structure as described above, wherein preferably, the second waste heat recovery circuit includes a first water pump, a cylinder water jacket, a cylinder head water jacket, an EGR cooler, an electromagnetic three-way valve, a PTC heater, a second water pump, and a heat exchanger, wherein a liquid outlet end of the first water pump is communicated with a liquid inlet end of the cylinder water jacket, a liquid outlet end of the cylinder water jacket is communicated with a liquid inlet end of the cylinder head water jacket, a liquid outlet end of the cylinder head water jacket is communicated with a liquid inlet end of the EGR cooler, a liquid outlet end of the EGR cooler is communicated with a first valve port of the electromagnetic three-way valve, a second valve port of the electromagnetic three-way valve is communicated with a liquid inlet end of the PTC heater, a liquid outlet end of the second water pump is communicated with a liquid inlet end of the heat exchanger, and a liquid outlet end of the heat exchanger is communicated with the first water pump.
The engine waste heat recovery arrangement structure as described above, wherein preferably, the first battery pack waste heat recovery circuit includes a third water pump, a battery pack water jacket, and a heat exchanger, a liquid outlet end of the third water pump is communicated with a liquid inlet end of the battery pack water jacket, a liquid outlet end of the battery pack water jacket is communicated with a liquid inlet end of the heat exchanger, and a liquid outlet end of the heat exchanger is communicated with a liquid inlet end of the third water pump.
The engine waste heat recovery arrangement structure as described above, wherein preferably, the second battery pack waste heat recovery circuit includes a third water pump, a battery pack water jacket and a first expansion water tank, a liquid outlet end of the third water pump is communicated with a liquid inlet end of the battery pack water jacket, a liquid outlet end of the battery pack water jacket is communicated with a liquid inlet end of the first expansion water tank, and a liquid outlet end of the first expansion water tank is communicated with a liquid inlet end of the third water pump.
In the engine waste heat recovery arrangement structure, the battery pack water jacket is preferably provided with a second temperature collector.
The engine waste heat recovery arrangement structure as described above, preferably, the first loop includes a first water pump, a cylinder water jacket, a cylinder head water jacket, a thermostat and a radiator, a liquid outlet end of the first water pump is communicated with a liquid inlet end of the cylinder water jacket, a liquid outlet end of the cylinder water jacket is communicated with a first valve port of the thermostat, a second valve port of the thermostat is communicated with a liquid inlet end of the radiator, a liquid outlet end of the radiator is communicated with a liquid inlet end of the first water pump, and a third valve port of the thermostat is communicated with a liquid inlet end of the first water pump.
The engine waste heat recovery arrangement structure as described above, wherein preferably, the second loop includes a first water pump, a cylinder body water jacket, a cylinder cover water jacket, an EGR cooler and an electromagnetic three-way valve, a liquid outlet end of the first water pump is communicated with a liquid inlet end of the cylinder body water jacket, a liquid outlet end of the cylinder body water jacket is communicated with a liquid inlet end of the cylinder cover water jacket, a liquid outlet end of the cylinder cover water jacket is communicated with a liquid inlet end of the EGR cooler, a liquid outlet end of the EGR cooler is communicated with a first valve port of the electromagnetic three-way valve, and a third valve port of the electromagnetic three-way valve is communicated with a liquid inlet end of the first water pump.
In a second aspect, the present utility model provides a vehicle comprising the aforementioned engine waste heat recovery arrangement.
Compared with the prior art, the utility model utilizes the three-way valve to distribute the refrigerant flowing through the EGR cooler, thereby realizing the short heating time and full recovery of waste heat in winter; when no waste heat is recovered, the refrigerant flow of the engine radiator is improved, the heat exchange coefficient and the refrigerant flow of the radiator are increased, the heat dissipation power of the radiator is improved, and the failure risk of the extreme heat balance working condition in summer is reduced.
Drawings
Fig. 1 is a schematic diagram of an engine waste heat recovery arrangement of the present utility model.
Reference numerals illustrate:
the air conditioner comprises a first water pump, a 2-cylinder body water jacket, a 3-cylinder cover water jacket, a 4-EGR cooler, a 5-electromagnetic three-way valve, a 6-PTC heater, a 7-second water pump, an 8-warm air core, a 9-electronic regulating valve, a 10-first temperature collector, a 11-heat exchanger, a 12-third water pump, a 13-battery pack water jacket, a 14-first expansion water tank, a 15-second temperature collector, a 16-thermostat, a 17-radiator and a 18-second expansion water tank.
Detailed Description
The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
The utility model provides an engine waste heat recovery arrangement structure, which comprises an engine waste heat recovery system, a battery pack waste heat recovery system, a first loop and a second loop, wherein:
the engine waste heat recovery system is used for waste heat recovery of an engine and comprises a first waste heat recovery loop and a second waste heat recovery loop.
In the embodiment provided by the application, the first waste heat recovery loop comprises a first water pump 1, a cylinder body water jacket 2, a cylinder cover water jacket 3, an EGR cooler 4, an electromagnetic three-way valve 5, a PTC heater 6, a second water pump 7, a warm air core 8 and an electronic regulating valve 9, wherein the liquid outlet end of the first water pump 1 is communicated with the liquid inlet end of the cylinder body water jacket 2, the liquid outlet end of the cylinder body water jacket 2 is communicated with the liquid inlet end of the cylinder cover water jacket 3, the liquid outlet end of the cylinder cover water jacket 3 is communicated with the liquid inlet end of the EGR cooler 4, the liquid outlet end of the EGR cooler 4 is communicated with a first valve port of the electromagnetic three-way valve 5, the liquid outlet end of the electromagnetic three-way valve 5 is communicated with the liquid inlet end of the PTC heater 6, the liquid outlet end of the PTC heater 6 is communicated with the liquid inlet end of the second water pump 7, the liquid outlet end of the second water pump 7 is communicated with the liquid inlet end of the warm air core 8, the liquid outlet end of the warm air core 8 is communicated with the liquid inlet end of the electronic regulating valve 9, and the liquid outlet end of the electronic regulating valve 9 is communicated with the liquid inlet end of the first water pump 1.
An electromagnetic three-way valve 5, a PTC heater 6 and a second water pump 7 are arranged between the EGR cooler 4 and a warm air core 8, the second water pump 7 is an electronic water pump, in the first waste heat recovery loop, a first valve port and a second valve port of the electromagnetic three-way valve 5 are opened, a third valve port is closed, and heat generated by engine operation is absorbed by a refrigerant and sequentially flows through the first water pump 1, a cylinder body water jacket 2, a cylinder cover water jacket 3 and the EGR cooler 4, and then sequentially flows through the PTC heater 6 and the second water pump 7 through the first valve port and the second valve port of the electromagnetic three-way valve 5, and then is heated to a passenger cabin through the warm air core 8.
In a feasible implementation mode, the first temperature collector 10 is arranged on the warm air core 8, the first temperature collector 10 is a passenger cabin temperature collector, and the first temperature collector 10 can monitor the temperature in the passenger cabin in real time so as to heat the passenger cabin in time in winter.
The second waste heat recovery loop comprises a first water pump 1, a cylinder body water jacket 2, a cylinder head water jacket 3, an EGR cooler 4, an electromagnetic three-way valve 5, a PTC heater 6, a second water pump 7 and a heat exchanger 11, wherein the liquid outlet end of the first water pump 1 is communicated with the liquid inlet end of the cylinder body water jacket 2, the liquid outlet end of the cylinder body water jacket 2 is communicated with the liquid inlet end of the cylinder head water jacket 3, the liquid outlet end of the cylinder head water jacket 3 is communicated with the liquid inlet end of the EGR cooler 4, the liquid outlet end of the EGR cooler 4 is communicated with a first valve port of the electromagnetic three-way valve 5, a second valve port of the electromagnetic three-way valve 5 is communicated with the liquid inlet end of the PTC heater 6, the liquid outlet end of the PTC heater 6 is communicated with the liquid inlet end of the second water pump 7, the liquid outlet end of the second water pump 7 is communicated with the liquid inlet end of the heat exchanger 11, and the liquid outlet end of the heat exchanger 11 is communicated with the first water pump 1.
The refrigerant cooled by the EGR cooler 4 sequentially enters the PTC heater 6, the second water pump 7 and the heat exchanger 11 through the first valve port and the second valve port of the electromagnetic three-way valve 5 and flows back to the first water pump 1, the third valve port of the electromagnetic three-way valve 5 is closed, and the refrigerant heated by the PTC heater 6 reaches the heat exchanger 11 and supplies heat to the battery pack.
The battery pack waste heat recovery system is used for waste heat recovery of a battery pack and comprises a first battery pack waste heat recovery loop and a second battery pack waste heat recovery loop.
In the embodiment provided by the application, the first battery pack waste heat recovery loop comprises a third water pump 12, a battery pack water jacket 13 and a heat exchanger 11, wherein the liquid outlet end of the third water pump 12 is communicated with the liquid inlet end of the battery pack water jacket 13, the liquid outlet end of the battery pack water jacket 13 is communicated with the liquid inlet end of the heat exchanger 11, and the liquid outlet end of the heat exchanger 11 is communicated with the liquid inlet end of the third water pump 12. The heat of the battery pack water jacket 13 is taken away by the refrigerant of the third water pump 12, and the heat is transferred and recovered by the heat exchanger 11 and then flows back to the third water pump 12 for circulation.
The second battery pack waste heat recovery loop comprises a third water pump 12, a battery pack water jacket 13 and a first expansion water tank 14, wherein the liquid outlet end of the third water pump 12 is communicated with the liquid inlet end of the battery pack water jacket 13, the liquid outlet end of the battery pack water jacket 13 is communicated with the liquid inlet end of the first expansion water tank 14, and the liquid outlet end of the first expansion water tank 14 is communicated with the liquid inlet end of the third water pump 12. In this embodiment, the gaseous refrigerant with a higher temperature flowing out of the battery pack water jacket 13 enters the area above the liquid surface of the first expansion water tank 14, is condensed into a liquid state, and then flows back to the third water pump 12 for circulation.
In a feasible implementation mode, the second temperature collector 15 is arranged on the battery pack water jacket 13, and the second temperature collector 15 is a battery temperature collector, so that the temperature of the battery pack can be monitored in real time, and the temperature of the battery pack can be conveniently adjusted within a design range.
The first loop is used for radiating heat of the engine. In the embodiment provided by the application, the first loop includes first water pump 1, cylinder body water jacket 2, cylinder cap water jacket 3, attemperator 16 and radiator 17, the liquid outlet end of first water pump 1 communicates with the feed liquor end of cylinder body water jacket 2, the liquid outlet end of cylinder body water jacket 2 communicates with the feed liquor end of cylinder cap water jacket 3, the liquid outlet end of cylinder cap water jacket 3 communicates with the first valve port of attemperator 16, the second valve port of attemperator 16 communicates with the feed liquor end of radiator 17, the liquid outlet end of radiator 17 communicates with the feed liquor end of first water pump 1, the third valve port of attemperator 16 communicates with the feed liquor end of first water pump 1.
The refrigerant flowing out of the first water pump 1 is subjected to the action of the temperature regulator 16, the flow of the refrigerant entering the radiator 17 is regulated, and the refrigerant entering the radiator 17 is cooled and radiated under the action of the radiator 17 and then flows back to the first water pump 1, so that the engine is ensured to work in a proper temperature range.
The second loop is a flow path of the refrigerant when no waste heat recovery is required. In the embodiment provided by the application, the second loop includes first water pump 1, cylinder body water jacket 2, cylinder cap water jacket 3, EGR cooler 4 and electromagnetism three-way valve 5, the play liquid end of first water pump 1 and the feed liquor end intercommunication of cylinder body water jacket 2, the play liquid end of cylinder body water jacket 2 and the feed liquor end intercommunication of cylinder cap water jacket 3, the play liquid end of cylinder cap water jacket 3 and the feed liquor end intercommunication of EGR cooler 4, the play liquid end of EGR cooler 4 and the first valve port intercommunication of electromagnetism three-way valve 5, the third valve port of electromagnetism three-way valve 5 and the feed liquor end intercommunication of first water pump 1.
In this embodiment, the first valve port and the third valve port of the electromagnetic three-way valve 5 are opened, the second valve port of the electromagnetic three-way valve 5 is closed, and the refrigerant flowing out of the first water pump 1 directly flows back to the first water pump 1 for circulation after passing through the EGR cooler 4. Meanwhile, the refrigerant flow of the radiator 17 is improved, so that the heat exchange coefficient and the refrigerant flow of the radiator 17 are increased, the heat exchange power of the radiator 17 is improved, and the failure risk of the extreme heat balance working condition in summer is reduced.
Referring to fig. 1, the engine waste heat recovery arrangement structure further includes a second expansion tank 18, a degassing pipe of the second expansion tank 18 is disposed at a position higher than a liquid level in the second expansion tank 18, so that an overflow risk of a refrigerant in the second expansion tank 18 can be effectively avoided, because a large amount of heat is generated during engine operation, a high-temperature refrigerant flowing out of the first water pump 1 can enter a region above the liquid level of the second expansion tank 18 through degassing of the cylinder head water jacket 3 and degassing of the EGR cooler 4 after passing through the cylinder head water jacket 3 or the EGR cooler 4, and the gaseous high-temperature refrigerant flows back to the first water pump 1 for circulation after being condensed in the second expansion tank 18.
In the first circuit, the high-temperature gas refrigerant is degassed by the radiator 17 and enters a region above the liquid surface of the second expansion tank 18 to be condensed, and the condensed liquid refrigerant flows back to the first water pump 1 to be circulated.
Based on the above embodiments, the present utility model provides a vehicle comprising the aforementioned engine waste heat recovery arrangement. When the vehicle adopts the engine waste heat recovery arrangement structure, each loop can be reasonably utilized, the passenger cabin is heated in time in winter, and the failure risk under the extreme heat balance working condition can be avoided in summer.
While the foregoing is directed to embodiments of the present utility model, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. An engine waste heat recovery arrangement, comprising:
the engine waste heat recovery system is used for recovering waste heat of an engine and comprises a first waste heat recovery loop and a second waste heat recovery loop;
the battery pack waste heat recovery system is used for recovering waste heat of a battery pack and comprises a first battery pack waste heat recovery loop and a second battery pack waste heat recovery loop;
the first loop is used for radiating heat of the engine;
the second loop is a flow path of the refrigerant when no waste heat recovery is required.
2. The engine waste heat recovery arrangement of claim 1, wherein the first waste heat recovery circuit comprises a first water pump, a cylinder block water jacket, a cylinder head water jacket, an EGR cooler, an electromagnetic three-way valve, a PTC heater, a second water pump, a warm air core, and an electronic regulating valve, wherein a liquid outlet end of the first water pump is communicated with a liquid inlet end of the cylinder block water jacket, a liquid outlet end of the cylinder block water jacket is communicated with a liquid inlet end of the cylinder head water jacket, a liquid outlet end of the cylinder head water jacket is communicated with a liquid inlet end of the EGR cooler, a liquid outlet end of the EGR cooler is communicated with a first valve port of the electromagnetic three-way valve, a second valve port of the electromagnetic three-way valve is communicated with a liquid inlet end of the PTC heater, a liquid outlet end of the second water pump is communicated with a liquid inlet end of the warm air core, a liquid outlet end of the warm air core is communicated with a liquid inlet end of the electronic regulating valve, and a liquid outlet end of the electronic regulating valve is communicated with a liquid inlet end of the first water pump.
3. The engine waste heat recovery arrangement according to claim 2, wherein the warm air core is provided with a first temperature collector.
4. The engine waste heat recovery arrangement of claim 1, wherein the second waste heat recovery circuit comprises a first water pump, a cylinder block water jacket, a cylinder head water jacket, an EGR cooler, an electromagnetic three-way valve, a PTC heater, a second water pump, and a heat exchanger, wherein a liquid outlet end of the first water pump is in communication with a liquid inlet end of the cylinder block water jacket, a liquid outlet end of the cylinder block water jacket is in communication with a liquid inlet end of the cylinder head water jacket, a liquid outlet end of the cylinder head water jacket is in communication with a liquid inlet end of the EGR cooler, a liquid outlet end of the EGR cooler is in communication with a first valve port of the electromagnetic three-way valve, a second valve port of the electromagnetic three-way valve is in communication with a liquid inlet end of the PTC heater, a liquid outlet end of the second water pump is in communication with a liquid inlet end of the heat exchanger, and a liquid outlet end of the heat exchanger is in communication with the first water pump.
5. The engine waste heat recovery arrangement of claim 1, wherein the first battery pack waste heat recovery circuit comprises a third water pump, a battery pack water jacket, and a heat exchanger, a liquid outlet end of the third water pump being in communication with a liquid inlet end of the battery pack water jacket, a liquid outlet end of the battery pack water jacket being in communication with a liquid inlet end of the heat exchanger, a liquid outlet end of the heat exchanger being in communication with a liquid inlet end of the third water pump.
6. The engine waste heat recovery arrangement of claim 1, wherein the second battery pack waste heat recovery circuit comprises a third water pump, a battery pack water jacket, and a first expansion water tank, a liquid outlet end of the third water pump is in communication with a liquid inlet end of the battery pack water jacket, a liquid outlet end of the battery pack water jacket is in communication with a liquid inlet end of the first expansion water tank, and a liquid outlet end of the first expansion water tank is in communication with a liquid inlet end of the third water pump.
7. The engine waste heat recovery arrangement according to claim 5 or 6, wherein a second temperature collector is provided on the battery pack water jacket.
8. The engine waste heat recovery arrangement of claim 1, wherein the first circuit includes a first water pump, a cylinder block water jacket, a cylinder head water jacket, a thermostat, and a radiator, a liquid outlet end of the first water pump is in communication with a liquid inlet end of the cylinder block water jacket, a liquid outlet end of the cylinder block water jacket is in communication with a liquid inlet end of the cylinder head water jacket, a liquid outlet end of the cylinder head water jacket is in communication with a first valve port of the thermostat, a second valve port of the thermostat is in communication with a liquid inlet end of the radiator, a liquid outlet end of the radiator is in communication with a liquid inlet end of the first water pump, and a third valve port of the thermostat is in communication with a liquid inlet end of the first water pump.
9. The engine waste heat recovery arrangement of claim 1, wherein the second circuit includes a first water pump, a cylinder block water jacket, a cylinder head water jacket, an EGR cooler, and an electromagnetic three-way valve, a liquid outlet end of the first water pump being in communication with a liquid inlet end of the cylinder block water jacket, a liquid outlet end of the cylinder block water jacket being in communication with a liquid inlet end of the cylinder head water jacket, a liquid outlet end of the cylinder head water jacket being in communication with a liquid inlet end of the EGR cooler, a liquid outlet end of the EGR cooler being in communication with a first valve port of the electromagnetic three-way valve, a third valve port of the electromagnetic three-way valve being in communication with a liquid inlet end of the first water pump.
10. A vehicle comprising the engine waste heat recovery arrangement of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281954.1U CN220319695U (en) | 2023-08-24 | 2023-08-24 | Engine waste heat recovery arrangement structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322281954.1U CN220319695U (en) | 2023-08-24 | 2023-08-24 | Engine waste heat recovery arrangement structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220319695U true CN220319695U (en) | 2024-01-09 |
Family
ID=89424121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322281954.1U Active CN220319695U (en) | 2023-08-24 | 2023-08-24 | Engine waste heat recovery arrangement structure and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220319695U (en) |
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2023
- 2023-08-24 CN CN202322281954.1U patent/CN220319695U/en active Active
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