Catalytic converter for diesel vehicle
Technical Field
The utility model relates to a diesel vehicle exhaust technical field, concretely relates to catalytic converter for diesel vehicle.
Background
For diesel motor vehicles, the closer the catalytic converter is to the exhaust manifold of the engine, the more favorable the emission level of the engine is, and the energy-saving and environment-friendly purposes can be achieved. However, because the engine compartment has many parts and limited arrangement space, it is very difficult to arrange the catalytic converter in the limited space so as to be close to the engine and ensure that the size of the catalytic converter carrier can meet the emission requirement. Meanwhile, the factors such as convenience of installation and disassembly of the catalytic converter and the like need to be considered when the catalytic converter is designed, so that the design difficulty of the structure of the catalytic converter is increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a catalytic converter for diesel vehicle, it has simple structure, easy dismounting, the effectual advantage of waste gas purification, can effectively avoid current catalytic converter because of the installation difficulty, causes catalytic converter to influence the problem of emission level far away from engine exhaust manifold.
In order to solve the technical problem, the utility model provides a pair of catalytic converter for diesel vehicle, include: the catalytic converter comprises a catalytic converter body, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are correspondingly connected with the front end and the rear end of the catalytic converter body, and the catalytic converter further comprises a switching assembly, and the switching assembly is used for fixedly connecting the catalytic converter body with an engine cylinder body.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, the switching subassembly is including the installing support plate and the linking bridge plate that are the Z type, and installing support plate's one end and catalytic converter body welded fastening, the mounting hole has been seted up to installing support plate's the other end, linking bridge plate's one end is equipped with the spliced pole that corresponds with the mounting hole on the installing support plate, and the connecting hole has been seted up to linking bridge plate's the other end.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, the catalytic converter body includes the catalyst converter barrel and corresponds front cone and the back cone that sets up in catalyst converter barrel front end and rear end, and the catalyst converter barrel is cylindrical, and front cone and back cone are the hemisphere; the air inlet pipe is welded and fixed with the front cone, and the air outlet pipe is welded and fixed with the rear cone.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, the other end welding that the intake pipe is relative to the nose cone has the casting flange; and the other end of the air outlet pipe, which is opposite to the rear cone, is welded with a stamping flange.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, the perisporium outside cover of catalytic converter body is equipped with first heat exchanger that separates.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, first heat shield adopts the stainless steel preparation and includes first heat shield left half and first heat shield right half, first heat shield left half and first heat shield right half are fixed through the otic placode that sets up on the catalyst converter barrel periphery wall.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, the welding of the perisporium outside of outlet duct has the second to separate the heat exchanger, the second separates the heat exchanger and adopts the stainless steel preparation.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, be equipped with the oxygen sensor connecting seat in the intake pipe, be equipped with the temperature sensor connecting seat on the front cone.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, the intake pipe still is equipped with flange joint ware and annular gasket in the one end that sets up the casting flange.
Further, the utility model relates to a catalytic converter for diesel vehicle, wherein, the casting flange adopts the inclined plane design with flange joint's contact surface, annular gasket's both sides face all is equipped with the annular arch, the annular arch is in annular gasket along the middle part of circumference width.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows: the utility model discloses a set up catalytic converter body, intake pipe and outlet duct, let intake pipe and outlet duct correspond and be connected with the front end and the rear end of catalytic converter body to set up the switching subassembly, make catalytic converter body fixed with being connected of engine cylinder body through the switching subassembly. Therefore, the catalytic converter for the diesel vehicle is simple in structure, convenient to assemble and disassemble and good in waste gas purification effect. In practical application, due to the limitation of the space of an engine compartment, the mounting point provided by the engine cylinder block is often shielded by the catalytic converter body and the pipeline thereof, so that the mounting is difficult and the dismounting is inconvenient. The utility model discloses a set up the switching subassembly and can draw forth the engine mounting point to the position easy to assemble and dismantle, on guaranteeing that catalytic converter is closer apart from engine exhaust manifold, improved dismouting catalytic converter's convenient flexibility, effectively avoided current catalytic converter because of the installation difficulty, cause catalytic converter to influence the problem of emission level far away from engine exhaust manifold. As specific implementation way, the utility model discloses a switching subassembly is concrete including the installing support plate and the linking bridge plate that are the Z type, lets the one end and the catalytic converter body welded fastening of installing support plate to set up the mounting hole at the other end of installing support plate, set up the spliced pole that corresponds with the mounting hole on the installing support plate in the one end of linking support plate simultaneously, seted up the connecting hole at the other end of linking support plate. In practical application, let the linking bridge board pass through the mounting point that connecting hole and supporting bolt installation were fixed in the engine cylinder body provided, let the mounting bridge board pass through the mounting hole cover and fasten on the spliced pole that corresponds and through supporting nut, can realize being connected fixedly of mounting bridge board and linking bridge board to finally realize being connected fixedly of catalytic converter and engine cylinder body.
Drawings
Fig. 1 is a schematic view of a catalytic converter for a diesel vehicle according to the present invention;
FIG. 2 is a schematic perspective view of another perspective view of a catalytic converter for a diesel vehicle according to the present invention;
fig. 3 is a schematic view of a portion of the position of the bracket plate for welding and installing the catalytic converter body in the catalytic converter for the diesel vehicle.
Wherein,
1. a catalytic converter body; 11. a catalyst cartridge; 12. a nose cone; 13. a rear cone; 14. a first heat shield; 15. an ear plate;
2. an air inlet pipe; 21. casting a flange; 22. a flange connector; 23. an annular gasket;
3. an air outlet pipe; 31. stamping a flange; 32. a second heat shield;
4. mounting a support plate; 41. mounting holes;
5. connecting the bracket plate; 51. connecting columns; 52. connecting holes;
6. an oxygen sensor connecting seat; 7. temperature sensor connecting seat.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
As shown in fig. 1 to 3, the present invention provides a catalytic converter for a diesel vehicle, including: catalytic converter body 1, intake pipe 2 and outlet duct 3. Wherein intake pipe 2 and outlet duct 3 correspond and are connected with the front end and the rear end of catalytic converter body 1, intake pipe 2 be used for with booster outlet flange joint, outlet duct 3 is used for being connected with rear side exhaust pipe. The catalytic converter further comprises a switching assembly, and the catalytic converter body 1 is fixedly connected with the engine cylinder body through the switching assembly during installation. The catalytic converter for the diesel vehicle, which has the advantages of simple structure, convenience in disassembly and assembly and good waste gas purification effect, is formed through the structure. In practical application, due to the limitation of the space of an engine compartment, the mounting point provided by the engine cylinder block is often shielded by the catalytic converter body and the pipeline thereof, so that the mounting is difficult and the dismounting is inconvenient. The utility model discloses a set up the switching subassembly and can draw forth the engine mounting point to the position easy to assemble and dismantle, on guaranteeing that catalytic converter is closer apart from engine exhaust manifold, improved dismouting catalytic converter's convenient flexibility, effectively avoided current catalytic converter to cause catalytic converter to influence the problem of emission level far away from engine exhaust manifold because of the installation difficulty.
As specific implementation mode, the utility model provides a switching subassembly specifically includes mounting bracket plate 4 and the linking bridge board 5 that are the Z type. One end of the mounting bracket plate 4 is welded and fixed to the catalytic converter body 1, and the other end of the mounting bracket plate 4 is provided with a mounting hole 41. Meanwhile, one end of the connecting support plate 5 is provided with a connecting column 51 corresponding to the mounting hole 41 on the mounting support plate 4, the connecting column 51 is provided with an external thread, and the other end of the connecting support plate 5 is provided with a connecting hole 52. In practical application, the connecting support plate 5 is firstly fixed on a mounting point provided by an engine cylinder body through the connecting hole 52 and a matched bolt, then the mounting support plate 4 is sleeved on the corresponding connecting column 51 through the mounting hole 51 and is fastened through a matched nut, so that the mounting support plate 4 and the connecting support plate 5 can be connected and fixed, and finally the catalytic converter and the engine cylinder body are connected and fixed. It should be noted that, the utility model provides a Z type structure in installing support plate 4 and linking bridge plate 5 are not the strict meaning, but the structure of similar Z type, and its purpose is drawn forth the engine mounting point to the position easy to assemble and dismantle to improve the convenience of dismouting catalytic converter operation. The mounting support plate 4 and the connecting support plate 5 are not limited to the Z-shaped structure, and other equivalent or similar structures can be adopted, so long as the functions are achieved, the technical purpose of the utility model can be realized.
The utility model provides a catalytic converter body 1 specifically includes catalyst converter barrel 11 and corresponds and set up in the preceding cone 12 and the back cone 13 of 11 front ends of catalyst converter barrel and rear end. In practical applications, the catalyst cylinder 11 is designed to be cylindrical according to the size of the carrier, and the front cone 12 and the rear cone 13 are designed to be hemispherical. This structure can improve the convenience of processing. Wherein, the air inlet pipe 2 is welded and fixed with the front cone 12, and the air outlet pipe 3 is welded and fixed with the rear cone 13. In order to improve the convenience and flexibility of the connection operation and improve the working efficiency, the other end of the air inlet pipe 2, which is opposite to the front cone 12, is welded with a cast flange 21 in the embodiment; a stamped flange 31 is welded to the other end of the outlet tube 3 opposite the rear cone 13.
As an optimized proposal, the first heat shield 14 made of stainless steel is sleeved outside the peripheral wall of the catalytic converter 1 in the present embodiment. In practical applications, the first heat shield 14 can ensure that the catalytic converter can be started quickly in the engine starting stage and block the exhaust gas from radiating heat to the parts around the cabin. To improve the ease and flexibility of the attaching and detaching operation of the first heat shield 14. The first heat shield 14 of the present embodiment is of a split design, and has a first heat shield left half and a first heat shield right half, and the first heat shield left half and the first heat shield right half are fixed by the ear plate 15 provided on the outer circumferential wall of the catalyst cylinder 11. Furthermore, in the present embodiment, a second heat shield 32 made of stainless steel is welded on the outer side of the peripheral wall of the outlet pipe 3, which is more beneficial to the catalytic converter to rapidly ignite and block the exhaust gas from radiating heat to the surrounding parts of the engine room in the engine starting stage, and the practicability is stronger. Meanwhile, in the embodiment, the oxygen sensor connecting seat 6 is arranged on the air inlet pipe 2, and the temperature sensor connecting seat 7 is arranged on the front cone 12. In practical application, the oxygen sensor and the temperature sensor are convenient to install and connect, and the exhaust gas purifying capacity of the catalytic converter can be ensured through detection of the oxygen sensor and the temperature sensor.
As a further optimization, the present embodiment further provides a flange connector 22 and an annular gasket 23 at the end of the air inlet pipe 2 where the cast flange 21 is provided. The contact friction surface of the cast flange 21 and the flange connector 22 is designed to be an inclined surface, two side surfaces of the annular gasket 23 are provided with annular protrusions, and the annular protrusions are positioned in the middle of the circumferential width of the annular gasket 23. The structure can enhance the sealing performance and the stability of the connection between the cast flange 21 and the outlet flange of the supercharger, so that high-temperature waste gas can be smoothly discharged from the supercharger, the influence of the air leakage of an exhaust pipeline on the conversion of the post-treatment system on the waste gas is avoided, the waste gas purifying capacity of the catalytic converter is ensured, and the emission level is improved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.