Drainable engine intake manifold
By setting up a water collecting tank structure in the pressure stabilization chamber of the engine intake manifold, the engine failure problem caused by condensation water storage is solved, and the effect of reducing moisture content and improving engine performance is achieved.
Patent Information
- Application Number
- CN202422107607.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-28
AI Technical Summary
Condensate formed inside the engine intake manifold will accumulate, causing the engine to hysteresis or misfire, and freeze at the throttle in a low-temperature environment, resulting in stagnation and failure and affecting vehicle performance.
A water collecting tank structure is arranged in the pressure stabilization chamber inside the intake manifold body to collect condensate and discharge condensate through the drain outlet at the bottom of the water collecting tank to avoid condensate accumulation.
It effectively reduces engine failures caused by condensation water accumulation, reduces the moisture content of the mixed gas inside the pressure stabilization chamber, and improves engine performance.
Smart Images
Figure CN222962969U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engine intake manifolds, in particular to a drainage engine intake manifold. Background Art
[0002] When the vehicle is driving, the condensed water formed by the exhaust gas from the exhaust pipe and EGR exhaust gas entering the intake manifold will enter the cylinder block to a certain extent, causing engine combustion lag or misfire problems, and ice will form at the throttle valve in low temperature environments, causing throttle valve sticking and other faults, affecting vehicle performance.
[0003] At present, most engines mix air, fuel mixture, tortuosity exhaust gas and EGR exhaust gas in the intake manifold and then evenly distribute them to the intake ducts of each cylinder for combustion. EGR exhaust gas and tortuosity exhaust gas are high-temperature gases. When the fresh low-temperature air from the intake system with high humidity comes into contact with EGR exhaust gas and tortuosity high-temperature exhaust gas during vehicle driving, condensed water will be generated on the manifold wall. With time and temperature changes, condensed water will accumulate inside the intake manifold, thus affecting engine performance.
[0004] Therefore, it is necessary to improve the structure of the existing drainable engine intake manifold so that it can effectively solve the problems existing in the prior art. Utility Model Content
[0005] In order to solve the above problems, the technical solution is to set a water collecting trough structure in the pressure stabilizing chamber formed inside the intake manifold body, so as to collect the condensed water generated by the mixture of the incoming fresh air, EGR exhaust gas, etc. at the bottom, and discharge the condensed water in the pressure stabilizing chamber through the drain port opened at the bottom of the water collecting trough, so as to avoid the accumulation of condensed water inside the intake manifold, reduce the water content of the mixed gas inside the pressure stabilizing chamber, and effectively reduce the engine failure caused by the accumulation of internal condensed water.
[0006] A drainable engine intake manifold comprises an intake manifold body, wherein a pressure stabilizing chamber for stabilizing the internal gas pressure is formed on the intake manifold body, a water collecting trough for collecting condensed water is formed in the pressure stabilizing chamber, and a drainage port for discharging condensed water is provided on the water collecting trough.
[0007] Furthermore, the middle portion of the pressure stabilizing chamber is recessed downward to form the water collecting trough, a drain outlet is arranged at the bottom of the water collecting trough, and a drain pipe is connected to the drain outlet.
[0008] Furthermore, an arc-shaped transition surface is formed at the opening of the water collecting trough.
[0009] Furthermore, a sensor installation hole for water level detection is provided on the side wall of the water collecting tank.
[0010] Furthermore, the outer wall of the pressure stabilizing chamber is formed with multiple groups of longitudinal reinforcing ribs and multiple groups of transverse reinforcing ribs, the multiple groups of longitudinal reinforcing ribs are arranged parallel to each other, the multiple groups of transverse reinforcing ribs are arranged parallel to each other, and the multiple groups of longitudinal reinforcing ribs and the multiple groups of transverse reinforcing ribs are perpendicular to each other to form a reinforcing rib grid.
[0011] Furthermore, an "X"-shaped reinforcement strip is formed at the reinforcement rib grid, and a positioning installation column is formed by protruding outward at the reinforcement rib grid.
[0012] Furthermore, a throttle air inlet and an EGR air inlet are provided on the intake manifold body.
[0013] The beneficial effect of the utility model is as follows: the technical scheme arranges a water collecting trough structure in the pressure stabilizing chamber formed inside the intake manifold body, so that condensed water generated after the mixture of incoming fresh air, EGR exhaust gas, etc. is collected at the bottom, and the condensed water in the pressure stabilizing chamber is discharged through the drain port opened at the bottom of the water collecting trough, thereby avoiding the accumulation of condensed water inside the intake manifold, reducing the water content of the mixed gas inside the pressure stabilizing chamber, and effectively reducing engine failures caused by the accumulation of internal condensed water. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0015] Figure 1 It is a schematic diagram of the front structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the back structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the interior of the voltage stabilizing chamber of the utility model. DETAILED DESCRIPTION
[0018] Figure 1 It is a schematic diagram of the front structure of the utility model; Figure 2 It is a schematic diagram of the back structure of the utility model; Figure 3This is a schematic diagram of the interior of the pressure stabilizing chamber of the utility model. As shown in the figure, the utility model provides a drainable engine intake manifold, including an intake manifold body, a pressure stabilizing chamber 1 for internal gas pressure stabilization is formed on the intake manifold body, a water collecting tank 11 for collecting condensed water is formed in the pressure stabilizing chamber 1, and a drain port 12 for discharging condensed water is opened on the water collecting tank; the technical solution is to set a water collecting tank 11 structure in the pressure stabilizing chamber 1 formed inside the intake manifold body, so that the condensed water generated by the mixing of the incoming fresh air (throttle air inlet 7), EGR exhaust gas (EGR air inlet 6), (qutong exhaust gas air inlet 4), etc. is collected at the bottom, and the condensed water in the pressure stabilizing chamber is discharged through the drain port at the bottom of the water collecting tank, so as to avoid the accumulation of condensed water inside the intake manifold, reduce the water content of the mixed gas inside the pressure stabilizing chamber, and effectively reduce the engine failure caused by the accumulation of internal condensed water.
[0019] In this embodiment, the middle of the pressure stabilizing chamber 1 is sunken downward to form the water collecting tank 11, and the drain port 12 is arranged at the bottom of the water collecting tank 11. The drain port 12 is connected to the drain pipe 2. Figure 1 A water collecting trough structure is formed after being recessed (vertically downward) to collect and process the condensed water produced by the mixed gas entering the pressure stabilizing chamber. A drain outlet 12 structure is provided at the lowest position of the water collecting trough 11, and a drain pipe 2 is connected to the drain outlet (a one-way valve structure can be installed at the drain pipe 2 to facilitate the discharge of condensed water) to discharge the internal condensed water at an appropriate time to avoid the accumulation of internal condensed water.
[0020] In this embodiment, an arc-shaped transition surface 13 is formed at the opening of the water collecting tank 11. A smoothly transitioned arc-shaped transition surface 13 is formed at the slot position of the water collecting tank, and the mixed gas (such as air exhaust gas, EGR exhaust gas and other gases) entering the pressure stabilizing chamber directly contacts the arc-shaped transition surface, and the generated condensed water flows into the bottom of the water collecting tank. At the same time, due to the setting of the arc-shaped transition surface, the condensed water inside the chamber can finally enter the water collecting tank smoothly.
[0021] In this embodiment, the side wall of the water collection tank is provided with a sensor installation hole 3 for water level detection. The side wall of the water collection tank is provided with an installation hole to facilitate the positioning and installation of the water level sensor. A water level sensor installation hole is designed on the side of the water collection tank (the existing sensor for water level detection can be used) to detect the water level in the water collection tank. When the water level in the water collection tank reaches the set position, an alarm will be triggered, and the drain pipe 2 will drain water when the engine stops working, or the driver can drain water manually, which effectively solves the problem of condensed water accumulation in the intake manifold, leading to engine failure and other problems.
[0022] In this embodiment, the outer wall of the pressure stabilizing chamber is formed with multiple groups of longitudinal reinforcing ribs and multiple groups of transverse reinforcing ribs, the multiple groups of longitudinal reinforcing ribs are arranged in parallel with each other, the multiple groups of transverse reinforcing ribs are arranged in parallel with each other, and the multiple groups of longitudinal reinforcing ribs and the multiple groups of transverse reinforcing ribs are perpendicular to each other to form a reinforcing rib grid. A criss-cross reinforcing rib grid structure is formed on the outer surface of the pressure stabilizing chamber, which is convenient for improving the structural performance of the pressure stabilizing chamber and facilitating the installation of later parts.
[0023] In this embodiment, an "X"-shaped reinforcement strip 5 is formed at the reinforcement rib grid, and a positioning installation column 51 is formed by protruding outward at the reinforcement rib grid. An X-shaped reinforcement strip structure is formed at the reinforcement rib grid, and a positioning installation column is formed by protruding outward at the grid, which cooperates with other components for positioning and installation. The reinforcement strip structure further improves the structural strength of the installation point.
[0024] In this embodiment, the intake manifold body is provided with a throttle inlet 7 and an EGR inlet 6, so as to facilitate the gas to enter the pressure stabilizing chamber for gas mixing.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A drainable engine intake manifold, characterized in that: It comprises an intake manifold body, on which a pressure stabilizing chamber for stabilizing the pressure of internal gas is formed, in which a water collecting tank for collecting condensed water is formed, and on which a drainage port for discharging condensed water is provided.
2. The drainable engine intake manifold according to claim 1, characterized in that: The middle part of the pressure stabilizing chamber is sunken downward to form the water collecting trough, a drain outlet is arranged at the bottom of the water collecting trough, and a drain pipe is connected to the drain outlet.
3. The drainable engine intake manifold according to claim 2, characterized in that: An arc-shaped transition surface is formed at the opening of the water collecting trough.
4. The drainable engine intake manifold according to claim 1, characterized in that: The side wall of the water collecting tank is provided with a sensor installation hole for water level detection.
5. The drainable engine intake manifold according to claim 2, characterized in that: The outer wall of the pressure stabilizing chamber is formed with multiple groups of longitudinal reinforcing ribs and multiple groups of transverse reinforcing ribs, the multiple groups of longitudinal reinforcing ribs are arranged parallel to each other, the multiple groups of transverse reinforcing ribs are arranged parallel to each other, and the multiple groups of longitudinal reinforcing ribs and the multiple groups of transverse reinforcing ribs are perpendicular to each other to form a reinforcing rib grid.
6. The drainable engine intake manifold according to claim 5, characterized in that: An "X"-shaped reinforcement strip is formed at the reinforcement rib grid, and a positioning installation column is formed by protruding outward at the reinforcement rib grid.
7. The drainable engine intake manifold according to claim 1, characterized in that: The intake manifold body is provided with a throttle air inlet and an EGR air inlet.