CN204436644U - The oval main oil pipe of a kind of gasoline naturally aspirated engine - Google Patents

Abstract

The oval main oil pipe of a kind of gasoline naturally aspirated engine disclosed in the utility model, comprise the body of cross section oval in shape, described body is plane along the both ends of the surface of short-axis direction, described body is by rolled stainless steel and be welded, described body is arranged at intervals with at least one first mounting hole along the length direction along body on a side end face of short-axis direction, and described body is arranged at intervals with at least one second mounting hole along the length direction along body on the side curved end of long axis direction.Gasoline naturally aspirated engine of the present utility model adopts rolled stainless steel with oval main oil pipe and is welded, there is not easily the features such as burn into is not yielding, intensity is high, Security good, the life-span is long, good airproof performance, and on each side of stainless steel body, stamp out other component mounting holes, be convenient to location and the installation of other Component.

Description

The oval main oil pipe of a kind of gasoline naturally aspirated engine

Technical field

The utility model relates to the technical field of motor car engine transmission system pipeline, particularly the oval main oil pipe of a kind of gasoline naturally aspirated engine.

Background technique

Motor is automobileheart, for the walking of automobile provides power.In simple terms, motor is exactly an energy transfer mechanism, by the heat energy of gasoline (diesel oil) or rock gas, by sealing cylinderduring combustion gas expansion, promote pistonacting, changes mechanical energy into, and this is the most basic principle of motor.And realize the complicated transmission system of this function needs, and transmission system be unable to do without pipeline.Available engine transmission system pipeline used, especially gasoline naturally aspirated engine main oil pipe, be carbon steel or other material is made, the shortcoming such as it exists at the bottom of perishable, yielding, intensity, poor stability, the life-span is short, sealing is poor.In addition, existing gasoline naturally aspirated engine main oil pipe is also inconvenient to coordinate with other auxiliary components and is installed.

For this reason, applicant carried out useful exploration and trial, have found result of the above problems, technological scheme described below produces under this background.

Model utility content

Technical problem to be solved in the utility model is: provide a kind of oval main oil pipe of gasoline naturally aspirated engine having not easily the features such as burn into is not yielding, intensity is high, Security good, the life-span is long, good airproof performance and be convenient to install other auxiliary components for the deficiencies in the prior art.

Technical problem to be solved in the utility model can be achieved through the following technical solutions:

The oval main oil pipe of a kind of gasoline naturally aspirated engine, comprise the body of cross section oval in shape, described body is plane along the both ends of the surface of short-axis direction, described body is >=520MPa by tensile strength, yield strength is >=210MPa, specific elongation is the rolled stainless steel of >=35% and is welded, and weld flush is greater than 0mm, and is less than 0.08mm; The long shaft external diameter of described body is 3mm ~ 70mm, and the allowance control of its long shaft external diameter is between-0.1mm ~+0.2mm, and the minor axis external diameter of described body is 3mm ~ 50mm, and the allowance control of its minor axis external diameter is between-0.2mm ~+0.05mm; The wall thickness of described body is 0.5mm ~ 3.0mm; The straightness accuracy of described body controls at 0.4mm/m;

Described body is arranged at intervals with at least one first mounting hole along the length direction along body on a side end face of short-axis direction, and described body is arranged at intervals with at least one second mounting hole along the length direction along body on the side curved end of long axis direction; The aperture of described first mounting hole and the second mounting hole is 0.3mm ~ 5.0mm, and the allowance control in its aperture is between-0.1mm ~+0.1mm; The pitch-row of the pitch-row of two adjacent the first mounting holes and adjacent two the second mounting holes is 0.6mm ~ 16mm, and the allowance control of its pitch-row is between-0.2mm ~+0.2mm.

Gasoline naturally aspirated engine of the present utility model adopts rolled stainless steel with oval main oil pipe and is welded, there is not easily the features such as burn into is not yielding, intensity is high, Security good, the life-span is long, good airproof performance, and on each side of stainless steel body, stamp out other component mounting holes, be convenient to location and the installation of other Component, become the conveyance conduits such as petrol engine transmission system main fluid and gas.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is plan view of the present utility model.

Fig. 2 is plan view of the present utility model.

Fig. 3 is left view of the present utility model.

Embodiment

The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.

See Fig. 1 to Fig. 3, the oval main oil pipe of a kind of gasoline naturally aspirated engine provided in figure, comprises the body 100 of cross section oval in shape, and body 100 is plane along the both ends of the surface 110,120 in minor axis b direction.

Body 100 is 582MPa by tensile strength, and yield strength is 230MPa, and specific elongation is 65% stainless steel weldedly to form, and weld flush is 0.04.The major axis a external diameter of body 100 is 3mm ~ 70mm, and the minor axis external diameter of described body is 3mm ~ 50mm.The wall thickness H of described body is 0.5mm ~ 3.0mm.Pipe range L can cut as required.

Body 100 is arranged at intervals with at least one first mounting hole 111 along the length direction along body 100 on a side end face 110 in minor axis b direction, in the present embodiment, the quantity of the first mounting hole 111 is four, certainly, the quantity of the first mounting hole 111 is not limited to the quantity in the present embodiment, and its quantity should adjust according to product actual size.The aperture A of the first mounting hole 111 is 0.3mm ~ 5.0mm, and the allowance control in its aperture is between-0.1mm ~+0.1mm, and the pitch-row P of two adjacent the first mounting holes 111 is that the allowance control of 0.6mm ~ 16mm, its pitch-row P is between-0.2mm ~+0.2mm.

Body 100 is arranged at intervals with at least one second mounting hole 131 along the length direction along body 100 on the side curved end 130 in major axis a direction, in the present embodiment, the quantity of the second mounting hole 131 is 1, certainly, the quantity of the second mounting hole 131 is not limited to the quantity in the present embodiment, and its quantity should adjust according to product actual size.The aperture B of the second mounting hole 131 is 0.3mm ~ 5.0mm, and the allowance control in its aperture is between-0.1mm ~+0.1mm, and the pitch-row of two adjacent the second mounting holes 131 is 0.6mm ~ 16mm, and the allowance control of its pitch-row is between-0.2mm ~+0.2mm.

The utility model adopts 4 flat 5 vertical totally 9 pairs of mould continuous finishing technology, by product outer diameter D precision controlling in major axis a (+0.2 ,-0.1), in minor axis b (+0.05 ,-0.2) mm tolerance range; Have employed online in welding bead planarization technology, get back to mother metal thickness around by whole for the bead height of projection, prevent welding bead from too much affecting interior shape because of projection, thus obtain the good mobility of pipe interior, reduce transportation of substances resistance, reduce and consume, improve capacity usage ratio; Have employed welded tube off-line cold rolling technology, adopt refining mould for cold milling to obtain the product that accuracy to shape is the highest in the market; Have employed online shaping aligning art, the tubing of 0.4mm/m precision straightness accuracy can be obtained.By above-mentioned controlling method, obtain the product meeting or exceed client and Standard of uniformity.

More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (1)

1. the oval main oil pipe of gasoline naturally aspirated engine, comprise the body of cross section oval in shape, described body is plane along the both ends of the surface of short-axis direction, it is characterized in that, described body is >=520MPa by tensile strength, and yield strength is >=210MPa, and specific elongation is the rolled stainless steel of >=35% and is welded, weld flush is greater than 0mm, and is less than 0.08mm; The long shaft external diameter of described body is 3mm ~ 70mm, and the allowance control of its long shaft external diameter is between-0.1mm ~+0.2mm, and the minor axis external diameter of described body is 3mm ~ 50mm, and the allowance control of its minor axis external diameter is between-0.2mm ~+0.05mm; The wall thickness of described body is 0.5mm ~ 3.0mm; The straightness accuracy of described body controls at 0.4mm/m;

Described body is arranged at intervals with at least one first mounting hole along the length direction along body on a side end face of short-axis direction, and described body is arranged at intervals with at least one second mounting hole along the length direction along body on the side curved end of long axis direction; The aperture of described first mounting hole and the second mounting hole is 0.3mm ~ 5.0mm, and the allowance control in its aperture is between-0.1mm ~+0.1mm; The pitch-row of the pitch-row of two adjacent the first mounting holes and adjacent two the second mounting holes is 0.6mm ~ 16mm, and the allowance control of its pitch-row is between-0.2mm ~+0.2mm.