CN2646401Y

CN2646401Y - Single cylinder diesel engine body

Info

Publication number: CN2646401Y
Application number: CN 03278869
Authority: CN
Inventors: 牟治兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-26
Filing date: 2003-09-26
Publication date: 2004-10-06
Anticipated expiration: 2013-09-26

Abstract

The utility model discloses a machine body for single cylinder diesel. The machine body is provided with a left upper oil path which is positioned under the left upper balance axis hole and connected with the crankshaft hole and a right lower oil path which is positioned above the balance axis hole and connected with the diesel pump output oil hole, the openings of the left upper oil path and the right lower path are arranged at the back side. The utility model makes the lubricate left upper oil path which enters into the crankshaft arrange at the upper part of the machine body, the middle oil path between the left upper oil path and the right lower oil path is arranged at the back cover; rely on the back cover, at the one hand, reduce the length of the oil path in the machine body, at the other hand, compare with the supported pressure of the machine body under the crankshaft supporting hole, the upper part of the machine body supports smaller pressure, therefore, the oil path setting can not influence to the intensity of the cylinder, in such way, the circumstance of the oil hole cracking caused by the overlarge supported pressure can be put an end. The back cover is matched to arrange with an oil path to optimize the structure of the whole machine.

Description

The single cylinder diesel body

Technical field

The utility model relates to a kind of single cylinder diesel body.

Background technique

Diesel engine need infeed a certain amount of cleaning machine oil friction surface to reduce parts depreciation and mechanical loss because the high speed relative movement between mating parts produces a large amount of heat and certain wearing and tearing.China Patent No. is that 96223522.9 utility model patent specification discloses a kind of single cylinder diesel body, in body, be respectively equipped with the left oilhole and the right oilhole that communicate with left and right two bearing hole of supporting crankshaft, left side oilhole and right oilhole intercommunication, when diesel engine runs well, lubricant oil is pumped by oil pump, behind main bearing seat, enter right oilhole, flow into bent axle, and arrive the rod journal on the bent axle by central oiling oilhole, left oilhole.This single cylinder diesel body is located at lubricating oil path in the body, and institute is so that complete machine structure optimization, and lubricating oil path is simple and practical.But because the left and right oilhole of above-mentioned single cylinder is arranged on the body area of below, left and right two crankshaft support holes, pressure, the inertial force that bears at this position are bigger, originally stress is just bigger, the setting of oilhole makes the stress at this position bigger, cylinder body does not reach requirement of strength, has the phenomenon of oilhole cracking to take place.

The model utility content

The purpose of this utility model is to propose a kind of single cylinder diesel body that can avoid the oilhole cracking.

The single cylinder diesel body has crankshaft hole, left and right balance axis hole, oil pump output oil hole and the left and right balance axis hole down gone up, for achieving the above object, in body, be provided be in below the upper left balance axis hole and the upper left oil duct that is connected with crankshaft hole be in bottom right balance axis hole above and the bottom right oil duct that is connected with the oil pump output oil hole, the opening of upper left oil duct and bottom right oil duct is all on trailing flank.

Described upper and lower oil duct is and is horizontally disposed with.

The upper left oil duct of lubricant oil that the utility model will enter bent axle is arranged on the top of body, middle oil duct between upper left oil duct and the bottom right oil duct is arranged on the bonnet, use bonnet, reduced the oil duct length in the body on the one hand, to compare the power of being born less for the body area of the top of body and crankshaft support hole below on the other hand, so the oil duct setting does not influence the intensity of cylinder body, it is excessive and cause the generation of oilhole cracking phenomena to stop stress like this.Bonnet is equipped with oil duct, optimizes complete machine structure.

Description of drawings

Fig. 1 is the utility model configuration diagram;

Fig. 2 is Fig. 1 right elevation;

Fig. 3 is the bonnet diagrammatic sketch that cooperates with the utility model.

Embodiment

Shown in Fig. 1～2, the utility model is common single cylinder diesel body, body 1 has crankshaft hole 2, left and right balance axis hole 3, oil pump output oil hole 5 and the left and right balance axis hole 7 down gone up, in body, be provided be in below the upper left balance axis hole 3 and the upper left oil duct 4 that is connected with crankshaft hole 2 be in bottom right balance axis hole 7 above and the bottom right oil duct 6 that is connected with oil pump output oil hole 5, upper and

lower oil duct

4,6 is and is horizontally disposed with, and opening 4-1, the 6-1 of upper left oil duct 4 and bottom right oil duct 6 are all on trailing flank.

Bonnet 8 as shown in Figure 3, be provided with oil duct 9 in the bonnet 8, both ends open 9-1, the 9-2 of oil duct 9 is arranged on the face that is harmonious with body, and when bonnet 8 was installed in the rear side of body 1, both ends open 9-1, the 9-2 of oil duct 9 matched with upper left oil duct opening 4-1 and bottom right oil duct opening 6-1 respectively.The oil pump output oil hole 5 of the lubricant oil that oil pump extrudes by body 1, bottom right oil duct 6, the oil duct 9 of bonnet 8, the upper left oil duct 4 of body 1 enter crankshaft oil gallery.Fig. 3 mesopore 9-3,9-4 are auxiliary hole, and the completion of processing rear open end blocks.

Claims

1, a kind of single cylinder diesel body, body has crankshaft hole (2), left and right balance axis hole (3), oil pump output oil hole (5) and the left and right balance axis hole (7) down gone up, it is characterized in that: be provided with upper left oil duct (4) that is in upper left balance axis hole (3) below and is connected with crankshaft hole (2) and the bottom right oil duct (6) that is in bottom right balance axis hole (7) top and is connected with oil pump output oil hole (5) in body, the opening (4-1,6-1) of upper left oil duct (4) and bottom right oil duct (6) is all on trailing flank.

2, single cylinder diesel body according to claim 1 is characterized in that: upper and lower oil duct (4,6) is and is horizontally disposed with.