CN201218130Y - 1.3L double-top mounted, 16 air valve gas engine exhaust manifold - Google Patents

Abstract

The utility model relates to a 1.3-liter dual-overhead and 16-valve gasoline-engine exhaust manifold. The matching problem of a 1.3-liter dual-overhead, a 16-valve, and an air inlet side VVT gasoline engine is solved. The exhaust manifold comprises four branch exhaust pipes and a general exhaust pipe, and the general exhaust pipe is communicated with a catalyzer shell. The utility model is structurally characterized in that the exhaust manifold also comprises an air-inlet flange plate which is punched to be of a strip-shaped steel plate shape, and four through holes are evenly distributed on the air-inlet flange plate; the four branch exhaust pipes are bent stainless steel pipes, the air-inlet ends of the four branch exhaust pipes are respectively correspondingly connected with the four through holes of the air-inlet flange plate, and the air-outlet ends of the branch exhaust pipes are respectively connected with one end of the general exhaust pipe; and the general exhaust pipe is hemispherical. The proposal has the advantages that the design of the stainless steel exhaust manifold is freer, the smooth inner wall greatly reduces the exhaust flow resistance, the strip-shaped steel plate shaped by punching is adopted as the installation flange, the cost is effectively lowered, and the layout space is saved.

Description

1.3L double overhead, 16 valve Gasoline Engine gas exhaust manifolds

Technical field

The utility model relates to the petrol engine gas exhaust manifold.

Background technique

Gas exhaust manifold is connected with motor by flange plate, be the higher parts of temperature in the vent systems, its effect is that the waste gas that each cylinder of multicylinder engine is discharged is pooled together, and imports exhaust manifold, and provides platform to install to parts such as catalyst converter, lambda sensors.

The eighties in last century, because the light-weighted requirement of automobile, Japan takes the lead in having adopted stainless exhaust manifold, stainless exhaust manifold is except having lightweight characteristics, also possesses favorable durability, inner wall smooth simultaneously, exhaust resistance is littler, and the appearance of soldering stainless steel gas exhaust manifold also makes the design liberalization more of gas exhaust manifold in addition.In view of the These characteristics of stainless exhaust manifold, increasing motor car engine has all adopted this technology as masses, BMW, Toyota, general, daily output etc.In addition, gas exhaust manifold and catalyst housing close coupled type structure have effectively guaranteed the initiation temperature of catalyzer, help reducing discharging, have saved mounting flange and bolt and have made external form compacter, and cost is lower.

Summary of the invention

In order to solve and 1.3L double overhead, 16 valves, air inlet side VVT petrol engine matching problem, the utility model provides a kind of 1.3L double overhead, 16 valves, air inlet side petrol engine gas exhaust manifold.

Concrete structural design scheme is as follows:

1.3L double overhead, 16 valves, air inlet side VVT petrol engine gas exhaust manifold comprise four exhaust branch pipes and exhaust manifold, exhaust manifold is being communicated with catalyst housing, it is characterized in that:

Also comprise the inlet flange plate, described inlet flange plate is stamping forming strip steel plate, uniform four through holes on the inlet flange plate;

Described four exhaust branch pipes are stainless steel elbow, the suction port end of four exhaust branch pipes respectively with the corresponding connection of four through holes of inlet flange plate, its air outlet end connects an end of exhaust manifold respectively;

Described exhaust manifold is hemispherical; The other end of exhaust manifold is connecting catalyst housing.

Welding fabrication after the gas exhaust manifold employing Stainless Steel Tube of the present utility model bending, and employing and catalyst housing close coupled type structure, to be the crooked welding fabrication of Stainless Steel Tube make the more liberalization of design of gas exhaust manifold with respect to casting to the advantage of this scheme, smooth inwall has also reduced discharge flow resistance greatly, gas exhaust manifold and catalyst housing close coupled type structure have not only guaranteed the initiation temperature of catalyzer, be beneficial to discharging, simultaneously owing to saved mounting flange and clamping bolt, adopt stamping forming strip steel plate, also effectively reduce cost, saved arrangement space.

Description of drawings

Fig. 1 is the utility model structural representation,

Fig. 2 is the side view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Embodiment:

Referring to Fig. 1 and Fig. 2,1.3L double overhead, 16 valves, air inlet side VVT petrol engine gas exhaust manifold comprise four exhaust branch pipes 1 and exhaust manifold 2, and exhaust manifold 2 is being communicated with catalyst housing 3, and the top of exhaust manifold 2 is provided with lambda sensor mounting hole 4.

Also comprise inlet flange plate 5, inlet flange plate 5 is stamping forming strip steel plate, uniform four through holes on the inlet flange plate 5;

Described four exhaust branch pipes 1 are stainless steel elbow, the suction port end of four exhaust branch pipes 1 respectively with the corresponding connection of four through holes of inlet flange plate 5, its air outlet end connects an end of exhaust manifold 2 respectively;

Described exhaust manifold 2 is hemispherical; The other end of exhaust manifold 2 is connecting catalyst housing 3.

Claims (1)

1,1.3L double overhead, 16 valve Gasoline Engine gas exhaust manifolds comprise four exhaust branch pipes and exhaust manifold, and exhaust manifold is being communicated with catalyst housing, it is characterized in that:

Also comprise the inlet flange plate, described inlet flange plate is stamping forming strip steel plate, uniform four through holes on the inlet flange plate;

Described four exhaust branch pipes are stainless steel elbow, the suction port end of four exhaust branch pipes respectively with the corresponding connection of four through holes of inlet flange plate, its air outlet end connects an end of exhaust manifold respectively;

Described exhaust manifold is hemispherical; The other end of exhaust manifold is connecting catalyst housing.

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