Skip to main content

Important measures to improve the performance of LPG public bus engines

 

The current layout of the radiator, fan and partition in the air intake compartment in the engine compartment is unreasonable. For example, there is a vortex in front of the radiator. L1 is not fully utilized, and the actual flow to the engine working area is very small, and the flow velocity is very low, resulting in poor convective heat transfer efficiency and poor heat dissipation in the engine compartment. In the improvement plan of the engine compartment layout, consider changing the orientation of components such as radiators and fans, changing the fan to face the engine body instead of the rear door, and removing the partition of the air inlet compartment in Zone A, which can effectively The high-speed air flow from the fan is used to improve the efficiency of convection heat transfer in the cabin and improve the heat dissipation performance of the cabin.

Using CFD and engineering heat transfer numerical analysis methods, the air flow vector diagram and the temperature distribution cloud map in the flow field in the engine compartment of a certain type of LPG gas bus are obtained, and the main high-temperature components in the engine compartment are analyzed based on the radiator. , Intercooler, engine block, turbocharger, etc., their heat is transferred to the outside of the engine compartment by the convection of air. The layout of various components in the engine compartment, especially the positions of various partitions and fans in the compartment, is one of the key factors that cause the heat dissipation characteristics of the engine compartment. Therefore, the engine compartment design based on automobile air heat transfer dynamics is one of the important measures to improve the performance of the LPG public bus engine.

For automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

Link to this article：Important measures to improve the performance of LPG public bus engines

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.：Cnc Machining，Thank

Comments

Post a Comment

Popular posts from this blog

Drive the preferential presetting of the spring frame of the vehicle

The secondary spring system of the original electric locomotive consists of 4 sets of the same ordinary cylindrical compression springs. Its parameters are: spring material diameter d=48mm, maximum working circle diameter D=230mm, effective working circle number n=6.6, free height H0= 528mm, working height H=431mm. The characteristic curve of the spring is approximately straight, with stable stiffness and simple structure. However, the spring stiffness is mainly along the axial direction, and its transverse shear and bending stiffness is very poor, and its anti-resonance ability is poor. After the train speeds up, its snake-like movement and shaking phenomenon intensify. Therefore, it is necessary to improve the spring system of electric locomotives. Improvement of the spring system. The improved spring parameters and characteristics take into account the special position of the secondary spring (between the bogie and the car body) and specific functions (s...
Post a Comment
Read more

Mitsubishi RM100HA-20F

# RM100HA-20F Mitsubishi RM100HA-20F New IGBT: 100A1000V, RM100HA-20F pictures, RM100HA-20F price, #RM100HA-20F supplier ------------------------------------------------------------------- Email: sales@shunlongwei.com https://www.slw-ele.com/rm100ha-20f.html ------------------------------------------------------------------- rm100ha-20f Description rm100ha-20f is a DIODE RECTIFIER BRIDGE SINGLE.   Target Applications rm100ha-20f Free wheel use, Welders IGBT: 100A1000V
Post a Comment
Read more

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form o...
Post a Comment
Read more