CN2665383Y

CN2665383Y - Direct injection lubrication motorcycle cylinder block

Info

Publication number: CN2665383Y
Application number: CN 03268186
Authority: CN
Inventors: 徐国豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-31
Filing date: 2003-07-31
Publication date: 2004-12-22
Anticipated expiration: 2013-07-31

Abstract

The utility model relates to a motorcycle engine, providing a direct-injection lubrication motorcycle cylinder. By use of an oil pipe C, an oil orifice F and a cylinder oil passage on the bent axle of the motorcycle cylinder, a lubricant passage connecting with the cylinder oil passage is arranged in the piston cylinder. The lubricant is transmitted to the cylinder bent axle cavity from the cylinder oil passage through the lubricant passage, therefore the piston cylinder is made in the form of the outer cylinder tightly fitting with the inner cylinder; a circular oil pipe is arranged on the inner cylinder and close to the outside of the bent axle; a cylinder hole is arranged at the circular oil pipe to allow the circular oil pipe and the cavity of the inner cylinder to be communicated; an inclined through-hole is drilled inward at the cylinder oil passage on the outer cylinder; the supply passage of the lubricant begins from an oil pump, then through the cylinder oil passage, the inclined through-hole, the circular oil pipe, the cylinder hole, finally to the bent axle cavity. The oil pipe of the utility model which is designed scientifically is easy for production and provide a smooth supply can ensure the lubricant to be supplied to the part needed to be lubricated on the bent axle, so that the service life of the motorcycle cylinder can be extended.

Description

The lubricated motorcycle cylinder body of straight spray

Technical field

The utility model relates to motorcycle engine, especially the lubrication system of motorcycle engine cylinder.

Background technique

Existing motorcycle engine cylinder lubricating system comprises two-part, the one, crankshaft cavity inside crankshaft parts lubricated, its structure is shown in the cylinder body crank portion of Fig. 6, on cylinder body crank portion limit, be provided with lubricant pipe C, the upper end of oil pipe C is provided with oilhole B and oilhole F, wherein oilhole B is the passage that lubricant oil enters the back crankshaft cavity, on bearing A, be provided with corresponding grease channel and connect oilhole B and crankshaft cavity, the service duct of its lubricant oil is: oil pump (not shown) → oil pipe C → oilhole B → bearing A → crankshaft cavity (the view back side, not shown).The major defect of this grease channel structure is: not smooth during lubricant oil process crankshaft bearing, occur easily stopping up, can not lubricate the cylinder bent axle when serious, motor is broken down, shorten the working life of cylinder, another road is a lubricating cylinders oil service duct: oil pump (not shown) → oil pipe C → oilhole F → cylinder body oil circuit.

Summary of the invention

The purpose of this utility model is that the crankshaft cavity lubricant oil supply pipeline of existing motorcycle engine cylinder is transformed, and guarantees the lubricated of engine crankshaft, prolongs the working life of cylinder.

The utility model can be realized by following technical solution:

The lubricated motorcycle cylinder body of straight spray, utilize oil pipe C, oilhole F and cylinder body oil circuit on the motorcycle cylinder body crank portion, it is characterized in that: in piston/cylinder, establish a grease channel that connects the cylinder body oil circuit, lubricant oil is flowed to the cylinder crankshaft cavity from the cylinder body oil circuit by this grease channel.

Described piston/cylinder is by urceolus and inner core drive fit be combined into, on inner core, be provided with fuel ring pipe by the cylinder crankshaft end outside, be provided with the cylinder bore that fuel ring pipe and interior tube inner chamber (piston cavity) are communicated with at this fuel ring pipe place, this cylinder bore is pointed to the cylinder crankshaft cavity, an oblique through hole is inwardly bored in position at urceolus upper cylinder body oil circuit, make when inner core the is inserted in urceolus inner outlet of this oblique through hole be in the corresponding position of fuel ring pipe on the inner core just, the supply passage of lubricant oil is during use: oil pump → crank portion oil pipe C → crank portion output oil hole F → cylinder body oil circuit → oblique through hole → fuel ring pipe → cylinder bore → crankshaft cavity.

The utility model oil circuit design science is easy to make, and the fuel feeding smoothness guarantees the position that lubricant oil supply bent axle need lubricate during use, can prolong the working life of cylinder.

Below in conjunction with accompanying drawing the utility model is further described:

Description of drawings

Fig. 1 is the inner sleeve sectional view;

Fig. 2 is a urceolus intermediate portion sectional view;

Fig. 3 is fitted to each other schematic representation for urceolus and inner sleeve intermediate portion;

Fig. 4 is the example stereogram of urceolus and inner sleeve;

Fig. 5 installs and uses interpretation maps for the utility model cooperates the cylinder crank portion;

Fig. 6 is oil circuit C, the oilhole F indicator diagram of existing Cylinder of motorcycle crank portion half one.

Embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the utility model provides a kind of straight spray to lubricate the motorcycle cylinder body, described piston/cylinder is by urceolus D and inner core E drive fit be combined into, on inner core E, be provided with fuel ring pipe 3 by the cylinder crankshaft end outside, be provided with the cylinder bore 4 that fuel ring pipe 3 and interior tube inner chamber 6 (piston cavity) are communicated with at these fuel ring pipe 3 places, this cylinder bore 4 is pointed to the cylinder crankshaft cavity, an oblique through hole 1 is inwardly bored in position at urceolus upper cylinder body oil circuit 2, make that the inner outlet of this oblique through hole 1 is in the corresponding position that inner core E goes up fuel ring pipe 3 just when inner core E is inserted in urceolus D, the utility model cooperates cylinder crank portion G to use, and the supply passage of lubricant oil is during use: oil pump → crank portion oil pipe C → crank portion output oil hole F → cylinder body oil circuit 2 → oblique through hole 1 → fuel ring pipe 3 → cylinder bore 4 → crankshaft cavity.

Claims

1. the lubricated motorcycle cylinder body of straight spray, it is characterized in that: in piston/cylinder, establish a grease channel that connects the cylinder body oil circuit, described piston/cylinder is by urceolus (D) and inner core (E) drive fit be combined into, described grease channel is to go up by the cylinder crankshaft end outside at inner core (E) to be provided with fuel ring pipe (3), locate to be provided with the cylinder bore (4) that fuel ring pipe (3) and interior tube inner chamber are communicated with at this fuel ring pipe (3), this cylinder bore (4) is pointed to the cylinder crankshaft cavity, an oblique through hole (1) is inwardly bored in position at urceolus (D) upper cylinder body oil circuit (2), and the inner outlet of this oblique through hole (1) is aimed at fuel ring pipe (3).