CN2492686Y

CN2492686Y - Condensating diesel engine

Info

Publication number: CN2492686Y
Application number: CN01247522U
Authority: CN
Inventors: 张美虹
Original assignee: Chongqing Golden Bow Group Power Co ltd
Current assignee: Chongqing Golden Bow Group Power Co ltd
Priority date: 2001-09-04
Filing date: 2001-09-04
Publication date: 2002-05-22
Anticipated expiration: 2011-09-04

Abstract

The utility model relates to a condensation diesel engine, comprising a machine body (1), a crankshaft-flywheel balance mechanism assembly (2), a camshaft assembly (3), a piston-rod assembly (4), a cylinder head assembly (6), a heat dissipation mechanism (9), a fuel mechanism (10), a covering part assembly (11), an assembly of a gear chamber cover (12), a gasinlet mechanism (17) and a muffler assembly (18).The utility model is characterized in that a round swirl-chamber insert (5) is arranged on the cylinder head in the cylinder head assembly (6). The cylinder head coordinates with a valve (19) and a valve pole directly. The utility model has the advantages of compact structure, good start-up performance, low fuel consumption and long service life. The main indexes of the performance stability, work reliability, noise, vibration and the smoke discharge have all reached the international advanced level.

Description

The condensing type diesel engine

(1), technical field

The utility model relates to the condensing type diesel engine.

(2), technical background

Domestic existing single cylinder diesel, the volume that seems that cylinder diameter is big is thick, heavy, the output power that cylinder diameter is little is low again, has that starting performance is poor, fuel consume height, stability and problems such as functional reliability is relatively poor, noise big, vibration is big, smoke emission index height.For example: domestic existing single cylinder diesel since on cylinder head band adopt the bowl-type swirl-chamber insert, its shape of the mouth as one speaks simplicity of design is generally rectangular avette, this inserting has only an air passageways, the eddy current that forms is not strong, and oil atomization is not ideal enough, and it is also abundant inadequately to burn; In addition, the cylinder head of present single cylinder diesel, the structure that has all adopted valve collar and inlayed air valve seat ring, air causes turbulent flow when passing through valve guide bushing, air valve seat ring in air flue easily, and is unfavorable in inflation; The body of present single cylinder diesel also exists the inner chamber design excessive, and after part was packed into, mutual gap was big, not compact, wall thickness is selected defectives such as generally conservative,

(3), Fa Ming content

Technical problem to be solved in the utility model is: provide a kind of and can overcome the prior art above shortcomings, have compact structure, characteristics such as starting performance is good, fuel consume is low, long service life.The condensing type diesel engine that leading indicators such as its stability, functional reliability, noise sound, vibration, smoke emission are all reached advanced world standards.

It is such that the utility model solves the problems of the technologies described above the technological scheme that is adopted, be a kind of condensing type diesel engine, comprise body, camshaft assembly, crankshaft-flywheel balanced controls assembly, Piston and rod assembly, cylinder head assembly, cooling mechanism, fuel oil mechanism, covering assembly, gear chamber cover assembly, admission gear, muffler assembly; It is characterized in that: have spherical swirl chamber on the cylinder head in the cylinder head assembly and insert; Directly cooperate between cylinder head and valve and the valve stem.

The utility model is owing to adopt the ball-type vortex chamber, what the outlet shape adopted is that plum is petal, can form the air passageways of three different amount, ball-type vortex chamber and three air passagewayss are approximate tangent, this design can make the air that is pressed into the vortex chamber in the cylinder form strong eddy current, the oil bundle that sprays into the vortex chamber with oil sprayer fully mixes, and the order burning is more abundant.

The utility model has been cancelled traditional valve collar and air valve seat ring owing to directly cooperate between cylinder head and valve and the valve stem, has brought into play the effect of intake and exhaust port more fully.

The utility model has reduced the volume of body under the enough big prerequisite that guarantees water tank capacity, the volume of complete machine is reduced, and compact structure is reasonable.

(4), description of drawings

The utility model has following accompanying drawing:

Accompanying drawing 1 is structure master's sectional view of the present utility model;

Accompanying drawing 2 is the A-A sectional view of accompanying drawing 1.

Referring to accompanying drawing: 1--body among the figure, 2--crankshaft-flywheel balanced controls, the 3--camshaft assembly, the 4--Piston and rod assembly, the 5--vortex type is inserted, the 6--cylinder head assembly, the 7--oil sprayer, the 8--cylinder liner, the 9--cooling mechanism, 10--fuel oil mechanism, 11--covering assembly, 12--gear chamber cover assembly, the 13--camshaft gear wheel, the 14--starting shaft, the 15--oil pump, the 16--piston, 17--admission gear, the 18--muffler assembly, the 19--valve, the 20--starting gear, 21--starts carrier gear, the 22--crankshaft timing gear.

(5), embodiment

Said structure of the present utility model can further specify by the embodiment that accompanying drawing provides:

Referring to accompanying drawing: the condensing type diesel engine among the figure comprises body 1, camshaft assembly 3, crankshaft-flywheel balanced controls assembly 2, Piston and rod assembly 4, cylinder head assembly 6, cooling mechanism 9, fuel oil mechanism 10, covering assembly 11, gear chamber cover assembly 12, admission gear 17, muffler assembly 18; It is characterized in that: have spherical swirl chamber on the cylinder head in the cylinder head assembly 6 and insert 5; Directly cooperate between cylinder head and valve 19 and the valve stem.

In said structure: spherical swirl chamber inserts 5, and to adopt cross sections be the petal outlet of plum; The water cavity volume that is arranged in body 1 is 1: 2～3 with the ratio of body volume.

The working principle of said structure is: starting shaft 14 is with behind the diesel engine starting, starting gear 20 on the starting shaft is given starting carrier gear 21 on the camshaft assembly 3 with transmission of power, the rotation of drive camshaft, camshaft by camshaft gear wheel 13 with transmission of power to the crankshaft timing gear on the bent axle 22, drive crankshaft rotating, the result of camshaft self rotation comes opening and closing valve 19 by cam.The major part of connecting rod connects the crank throw position of bent axle, and the microcephaly of connecting rod connects piston 16, rotatablely moving of bent axle can be converted to the to-and-fro motion of piston by connecting rod like this, thereby finish in cylinder: the process of air inlet, compression, exhaust.Cylinder head assembly 6 is installed in cylinder 8 tops, is used for sealing cylinder.Gear chamber cover assembly 12 is installed the gear of the transmission that is useful on, and gear lubrication system and arrangements for speed regulation have been installed.Cooling mechanism 9 is installed in body 1 top, links to each other with the water cavity of body, and its effect is cooling cylinder 8 and cylinder head.The required whole fuel of fuel oil mechanism 10 supply diesel engines, by Injection Pump 15 and oil sprayer 7 high pressure oil is sprayed into cylinder, by swirl-chamber insert high pressure oil and high pressure air are mixed rapidly again and form strong eddy current, the order burning is more abundant, thereby the reduction fuel consume, and make its smoke emission reach requirement.Through the result of air inlet, compression, burning, expansion, five chain movement processes of exhaust, finish the entire work process of diesel engine.

The utility model is of many uses; be hand tractor, motor tricycle, agricultural four-wheel wagon, field irrigation, spitkit, railway engineering machinery, the desirable mating power of small power generation unit, spraying and agricultrue sideline production processing machinery (as threshing machine, rice milling machine, fodder grinding mill) etc.Not only machine volume seems small and exquisite, and can reach high output power again--the output power of 95 diesel engines is 9.5 horsepowers, and the output power of 110 diesel engines is 11 horsepowers.

Claims

1, a kind of condensing type diesel engine comprises body (1), crankshaft-flywheel balanced controls assembly (2), camshaft assembly (3), Piston and rod assembly (4), cylinder head assembly (6), cooling mechanism (9), fuel oil mechanism (10), covering assembly (11), gear chamber cover assembly (12), admission gear (17), muffler assembly (18); It is characterized in that: have spherical swirl chamber insert (5) on the cylinder head in the cylinder head assembly (6); Directly cooperate between cylinder head and valve (19) and the valve stem.

2, condensing type diesel engine according to claim 1 is characterized in that: spherical swirl chamber inserts, and (5) to adopt the cross section be the petal outlet of plum.

3, condensing type diesel engine according to claim 1 is characterized in that: the water cavity volume that is arranged in body (1) is 1: 2～3 with the ratio of body volume.