CN201843679U

CN201843679U - Pulse-supercharged exhaust pipe for eight-cylinder diesel engines

Info

Publication number: CN201843679U
Application number: CN2010206043493U
Authority: CN
Inventors: 陈金涛; 叶荣; 李康健; 夏军毅; 周德华
Original assignee: CHONGQING WEICHAI ENGINE FACTORY
Current assignee: CHONGQING WEICHAI ENGINE FACTORY
Priority date: 2010-11-12
Filing date: 2010-11-12
Publication date: 2011-05-25
Anticipated expiration: 2020-11-12

Abstract

The utility model relates to a pulse-supercharged exhaust pipe for eight-cylinder diesel engines, which comprises main exhaust pipes and branch exhaust pipes, and the pulse-supercharged exhaust pipe is characterized in that the main exhaust pipes and the branch exhaust pipes are wall-sharing pipes. Since the main exhaust pipes and the branch exhaust pipes are the wall-sharing pipes and the four main exhaust pipes are connected with a supercharger through a four-in-two pulse converter, the structure is simple and compact, the number of pipe fittings is reduced, the cost is reduced, moreover, the loss of pipeline pressure is reduced, and the working efficiency of a diesel engine is increased.

Description

A kind of eight cylinder diesel pulse pressure-charging outlet pipes

Technical field

The utility model relates to a kind of eight cylinder diesels, relates in particular to a kind of eight cylinder diesel pulse pressure-charging outlet pipes.

Background technique

Existing eight cylinder diesel pulse pressure-charging outlet pipes adopt in-line arrangement, comprise exhaust gas turbine double feed inlet pressurized machine, eight exhaust branch pipes, four exhaust manifolds and two two-in-one pulse converters that a you is put, the joint of its exhaust manifold or exhaust branch pipe is provided with metal bellows or metallic shim.Not only pipe fitting is various for this supercharging outlet pipe, complex structure, and also floor space is big, the cost height.

The model utility content

The purpose of this utility model is to provide a kind of eight simple in structure, compact cylinder diesel pulse pressure-charging outlet pipes.

The purpose of this utility model is achieved in that a kind of eight cylinder diesel pulse pressure-charging outlet pipes, comprises exhaust manifold and exhaust branch pipe, it is characterized in that: described exhaust manifold and exhaust branch pipe are for being total to the wall pipe.

In order to improve exhaust efficiency, above-mentioned two exhaust branch pipes and an exhaust manifold are for being total to the wall pipe.

For compact structure, rationally distributed, a cylinder exhaust branch pipe in above-mentioned eight cylinder diesels, No. eight cylinder exhaust branch pipes and an exhaust manifold are for being total to the wall pipe, No. two cylinder exhaust branch pipes, No. seven cylinder exhaust branch pipes and an exhaust manifold are for being total to the wall pipe, No. three cylinder exhaust branch pipes, No. six cylinder exhaust branch pipes and an exhaust manifold are for being total to the wall pipe, and No. four cylinder exhaust branch pipes, No. five cylinder exhaust branch pipes and an exhaust manifold are for being total to the wall pipe.

For further simplified structure, above-mentioned exhaust manifold is four and closes two pulse converters by one four and be connected with pressurized machine.

Cause the outlet pipe distortion in order to prevent owing to expand with heat and contract with cold, the joint of above-mentioned exhaust manifold is provided with bellows.

The utlity model has following beneficial effect, exhaust manifold of the present utility model and exhaust branch pipe are for being total to the wall pipe, and closing two pulse converters by one four is connected four exhaust manifolds with pressurized machine, not only simple in structure, compactness has reduced pipe fitting, has reduced cost, and reduced duct pressure loss, improved diesel engine work efficient.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is Fig. 2 A-A sectional view;

Fig. 4 is Fig. 2 B-B sectional view;

Fig. 5 is Fig. 2 C-C sectional view.

Embodiment

Embodiment, a kind of eight cylinder diesel pulse pressure-charging outlet pipes comprise exhaust manifold 1 and exhaust branch pipe 2, exhaust manifold 1 is four and closes two pulse converters 4 by one four and be connected with pressurized machine; Wherein, two exhaust branch pipes 2 and an exhaust manifold 1 are for being total to wall pipe 3; Cylinder exhaust branch pipe 2 in this eight cylinder diesel, No. eight cylinder exhaust branch pipes 2 and exhaust manifold 1 are wall pipe 3 altogether, No. two cylinder exhaust branch pipes 2, No. seven cylinder exhaust branch pipes 2 and exhaust manifold 1 are wall pipe 3 altogether, No. three cylinder exhaust branch pipes 2, No. six cylinder exhaust branch pipes 2 and exhaust manifold 1 are common wall pipe 3 for 3, No. four cylinder exhaust branch pipes of wall pipe altogether 2, No. five cylinder exhaust branch pipes 2 with an exhaust manifold 1; The joint of wall pipe 3 is provided with bellows 5 altogether.

Claims

1. a cylinder diesel pulse pressure-charging outlet pipe comprises exhaust manifold (1) and exhaust branch pipe (2), it is characterized in that: described exhaust manifold (1) is to be total to wall pipe (3) with described exhaust branch pipe (2).

2. eight cylinder diesel pulse pressure-charging outlet pipes as claimed in claim 1 is characterized in that: described two exhaust branch pipes (2) are to be total to wall pipe (3) with an exhaust manifold (1).

3. eight cylinder diesel pulse pressure-charging outlet pipes as claimed in claim 1 or 2, it is characterized in that: the cylinder exhaust branch pipe (2) in eight cylinder diesels, No. eight cylinder exhaust branch pipes (2) are to be total to wall pipe (3) with an exhaust manifold (1), No. two cylinder exhaust branch pipes (2), No. seven cylinder exhaust branch pipes (2) are to be total to wall pipe (3) with an exhaust manifold (1), No. three cylinder exhaust branch pipes (2), No. six cylinder exhaust branch pipes (2) are to be total to wall pipe (3), No. four cylinder exhaust branch pipes (2) with an exhaust manifold (1), No. five cylinder exhaust branch pipes (2) are to be total to wall pipe (3) with an exhaust manifold (1).

4. eight cylinder diesel pulse pressure-charging outlet pipes as claimed in claim 3 is characterized in that: described exhaust manifold (1) is four and closes two pulse converters (4) by one four and be connected with pressurized machine.

5. eight cylinder diesel pulse pressure-charging outlet pipes as claimed in claim 4 is characterized in that: the described joint of wall pipe (3) altogether is provided with bellows (5).