CN101122256B

CN101122256B - Engine cooling device

Info

Publication number: CN101122256B
Application number: CN2006101107092A
Authority: CN
Inventors: 苏泓瑜
Original assignee: Kwang Yang Motor Co Ltd
Current assignee: Kwang Yang Motor Co Ltd
Priority date: 2006-08-08
Filing date: 2006-08-08
Publication date: 2011-09-14
Anticipated expiration: 2026-08-08
Also published as: CN101122256A

Abstract

The present invention relates to an engine cooling device. A main lubricating oil passage is arranged inside a camshaft of the engine, and a first auxiliary passage and a second auxiliary passage are arranged on the main passage. Moreover, as an outlet of the second auxiliary passage is arranged between the first auxiliary passage and a timing gear, the lubricating oil can lubricate the timing gear after the lubricating oil ejects out from the outlet of the second auxiliary passage. Meanwhile, the lubricating oil can flow back to an engine oil tank along the cylinder body wall at the side of a timing chain chamber. Thus, the lubricating oil flowing back can reduce the temperature of the engine body wall at the side of a timing chain chamber, and correct the defect of the uneven temperatures at both sides of the cylinder body, so as to promote the using efficiency of the engine.

Description

The cooling unit of engine

[technical field]

The invention relates to a kind of cooling unit of engine, refer to a kind of cooling unit that improves the cylinder body two side temperature inequalities of engine especially.

[background technique]

For motor vehicle engine 1 is consulted shown in Fig. 1,2, and wherein belt speed change mechanism 2 is to be placed in the transmission case 11, and the bent axle 13 that the power that engine 1 is produced can see through in the crankcase 12 transmits, and this belt speed change mechanism 2 is driven.This belt speed change mechanism 2 includes; One is arranged at that slider disc 21, on this bent axle 13 is arranged on this bent axle 13 and the drive plate 22, that is positioned at a side of this slider disc 21 is arranged on this bent axle 13 and the ball 24, that is positioned at 23 of slider disc 21 and this swash plates can drive driven axle 25, two that trailing wheel rotates and is arranged on this driven axle 25 driven disc 26, and is fixed in clutch 27, a drivign belt 28 on this driven axle 25, and one on the transmission-case cover 111 of this transmission case 11 and the bearing 29 in order to support this driven axle 25.Wherein, this slider disc 21 forms a belt speed change mechanism 2 with this drive plate 22, an end of this drivign belt 28 be the position between this drive plate 22 and this slider disc 21, the other end is then between two driven discs 26.

Car engine 1 is in firing chamber 16, the power that produces by firing, can promote piston 14 to-and-fro motion, thereby drive this bent axle 13 and rotate, this bent axle 13 is by the timing chain 18 of being located at timing chain chamber 17, driving camshaft 19 rotates, this camshaft 19 makes inlet and outlet valve (not drawing in the diagram) start again, make engine 1 continuous igniting fire by this, bent axle 13 can make slider disc 21 and this drive plate 22 rotate synchronously simultaneously in addition, at this moment, 24 on this ball can be subjected to centrifugal action and move.When opening the throttle, the rotating speed of this bent axle 13 also can increase with the person, increase and move outward and make this ball 24 be subjected to action of centrifugal force, 21 of this slider disc are subjected to these ball 24 contacts and slide toward this drive plate 22, the distance that this drive plate 22 and this slider disc are 21 then can be dwindled, ordering about this drivign belt 28 extends out, thereby increased the rotation circumference range of this drivign belt 28, can make driven disc 26 faster rotational speed by this, order about this driven axle 25 and drive the trailing wheel (not shown) and rev up and see through this clutch 27, and increase the gait of march of vehicle.

Otherwise, when loosening throttle, these ball 24 suffered centrifugal actions reduce, cooperate the extrusion of this drivign belt 28, make the distance of 21 of this drive plate 22 and this slider disc increase, the circumference slewing area of this drivign belt 28 then can be dwindled, so these driven disc 26 rotating speeds also can reduce with the person, trailing wheel then reduces rotating speed with these driven axle 25 rotating speeds, the gait of march of vehicle thereby slow down.

Engine 1 mainly is by in firing chamber 16 fuel oil being fired, and then it is reciprocating in cylinder body 10 to promote piston 14, drives bent axle 13 and makes circular movement and produce power.Because piston 14 is to do action back and forth at a high speed in cylinder body 10, therefore relatedly make bent axle 13 and the also start of being located in the cylinder head 101 fast of camshaft 19, therefore other members of engine 1 all are to become action at a high speed, be each member (comprising piston, bent axle, camshaft etc.) of avoiding engine 1, because of the increase of contact friction, and cause damage.Therefore engine 1 all is provided with lubrication system, as shown in Figure 1, this lubrication system is by the sump 3 that is connected basically, oil pump 31, and delivery line 32 constitutes, the machine oil in the sump 3 pumped by oil pump 31, constantly send pipe 32 to flow to engine 1 appropriate location via wheel, as cylinder body 10, camshaft 19 in piston 14 and the cylinder head 101, with lubricated whole engine 1, last machine oil is recycled in the sump 3 again, so repetitive cycling is used, and to reach the purpose of lubricated engine 1, can the high temperature of engine 1 be taken away by lubricant oil simultaneously, with the part of benefit engine 1 air cooling deficiency, and then can increase engine 1 cool effect.

The part that the locomotive of commonly using is lowered the temperature by lubricant oil with engine 1, see also Fig. 1 again, shown in 2, these cylinder body 10 1 sides are because of there being lubricant oil delivery pipe 32 processes, and can directly contact with ambient air, so this side has preferable cooling-down effect, and cylinder body 10 is positioned at timing chain chamber 17 sides, because of at interval timing chain chamber 17, therefore can't directly contact with the cool air in the external world, and can cause the bad situation of heat radiation, therefore caused the two side temperature inequality extremely of cylinder body 10, severe patient can cause the distortion of cylinder body 10, and when making piston 14 in cylinder body 10, do the high speed to-and-fro motion,, engine 1 can't be run well again with the inner wall abrasion of cylinder body 10.Therefore how to improve the disappearance of the cylinder body 10 2 side temperature inequalities of commonly using engine 1, to avoid the damage of engine 1, the big problem that reality needs to be resolved hurrily for the locomotive dealer.

[summary of the invention]

Main purpose of the present invention, be to provide a kind of cooling unit of engine, mainly be in the camshaft of engine, to offer the lubricant oil main passage, and on the main passage, offer first subaisle and second subaisle, and be to be located between first subaisle and the timing gear by the outlet of second subaisle, make lubricant oil after the outlet ejection of second subaisle, be the Castor Oil timing gear, this lubricant oil also can be back in the sump along the cylinder body wall of timing chain chamber side simultaneously, the action that can lower the temperature to the cylinder body wall that is positioned at timing chain chamber side of the lubricant oil of this backflow by this, the disappearance of cylinder body two side temperature inequalities can be improved, and then the use effect of engine can be promoted.

The cooling unit of a kind of engine of the present invention, the bent axle of this engine drives the camshaft rotation by the timing chain of being located at the timing chain chamber and timing gear, it is characterized in that: in the camshaft of engine, offer the lubricant oil main passage, and offer first subaisle and second subaisle on the main passage, and the outlet of this second subaisle is to be located between first subaisle and the timing gear.

The cooling unit of a kind of engine of the present invention, can make lubricant oil after the outlet ejection of second subaisle, be the Castor Oil timing gear, this lubricant oil also can be back in the sump along the cylinder body wall of timing chain chamber side simultaneously, the action that can lower the temperature to the cylinder body wall that is positioned at timing chain chamber side of the lubricant oil of this backflow by this, and then can improve the disappearance of cylinder body two side temperature inequalities.

[description of drawings]

Fig. 1 is a cross-sectional schematic of commonly using engine.

Fig. 2 is a lubrication system schematic representation of commonly using engine.

Fig. 3 is an engine cross-sectional schematic of the present invention.

Fig. 4 is a camshaft cross-sectional schematic of the present invention.

Fig. 5 is the embodiments of the invention schematic representation.

[embodiment]

Be the effect that can be easier to understand structure of the present invention and can reach, cooperate now to illustrate as the back:

At first see also Fig. 3, shown in 5, engine of the present invention 4 same in firing chamber 41, fire the power that oil gas produces by spark plug 411, make piston 42 in cylinder body 43, move reciprocatingly, rotate and drive this bent axle 44, this bent axle 44 is by the timing chain 46 and timing gear 53 of being located at timing chain chamber 45, driving camshaft 5 rotates, this camshaft 5 makes again, drain tap (not drawing in the diagram) start, make engine 4 continuous igniting fire by this, bent axle 44 can make belt speed change mechanism 47 synchronous starts simultaneously in addition, and 47 of this belt speed change mechanisms can drive the trailing wheel (not shown), and vehicle is advanced.In addition, the lubricating oil system of engine 4 of the present invention is identical with the person of commonly using, so repeat no more.

See also Fig. 4, shown in 5, the present invention is for improving the disappearance of cylinder body 43 2 side temperature inequalities, mainly be to be provided with at least one cam 51 in camshaft 5, and at the sheathed bearing 52 of two sides of cam 51, set firmly timing gear 53 in timing chain chamber 45 sides in addition, provide the main passage 54 of a lubricant oil in this camshaft 5, and on main passage 54, offer first subaisle 55 and second subaisle 56, the outlet 551 of this first passage 55 is to be positioned on the cam 51, by this, after lubricant oil is transfused to camshaft 5, lubricant oil can be by main passage 54 through first subaisle 55, flow out by cam 51 from outlet 551, use lubricated cam 51 and reach and advancing that cam 51 contacts, the rocking arm of drain tap (not shown in the diagram).This second subaisle 56 is to be located at nearly timing gear 53 places, promptly between first subaisle 55 and timing gear 53, the outlet 561 of this second subaisle 56 is to be located on the camshaft 5, by this, after lubricant oil is transfused to camshaft 5, the lubricant oil of part is flowed out by first subaisle 55, parts of lubricating oil can be rotated by camshaft 5 by main passage 54, the centrifugal force that is produced is from exporting 561 ejections, this lubricant oil is after outlet 561 ejections of second subaisle 56, part just can be sprayed on the timing gear 53, it is lubricated to make timing gear 53 obtain by this, this lubricant oil part then can be along the madial wall 451 (being cylinder body 43 walls) of timing chain chamber 45 to the dirty machine oil chamber of flowing back to simultaneously, by this, the band that this lubricant oil just can be taken advantage of a situation the high temperature of cylinder body 43 from, that is the action that can lower the temperature for cylinder body 43 walls that are positioned at timing chain chamber 45 sides of this defluent lubricant oil, to lower the temperature lubricant oil after the action of cylinder body 43 walls that are positioned at timing chain chamber 45 sides, then flow back in machine oil (lubricant oil) case again and utilize.

Effect of the present invention is, by on the lubricating oil main channel 54 of camshaft 5, offering first subaisle 55 and second subaisle 56, and be to be located between first subaisle 55 and the timing gears 53 by the outlet 561 of second subaisle 56, make lubricating oil after outlet 561 ejections of second subaisle 56, be Castor Oil timing gears 53, this lubricating oil also can be back in the sump along cylinder body 43 walls of timing chain chamber 45 sides simultaneously, and then the action of taking advantage of a situation cylinder body 43 walls that are positioned at timing chain chamber 45 sides being lowered the temperature, the disappearance of cylinder body 43 2 side temperature inequalities can be effectively improved by this, and then the use effect of engine 4 can be promoted.

[main element symbol description]

1 engine, 11 transmission cases, 111 transmission-case covers

12 crankcases, 13 bent axles

14 pistons, 15 connecting rods

Timing chain chambers 17,16 combustion chambers

18 timing chains, 19 camshafts

10 cylinder body, 101 cylinder heads

2 belt speed change mechanisms, 21 slider disc, 22 drive plates

23 swash plates, 24 balls

25 driven axles, 26 driven discs

27 clutches, 28 drivign belts

29 bearings

3 sumps, 31 oil pump, 32 delivery lines

4 engines, 41 firing chambers, 411 spark plugs

42 pistons, 43 cylinder body

44 bent axles timing chain chambers 45

451 madial walls, 46 timing chains

47 belt speed change mechanisms

5 camshafts, 51 cams, 52 bearings

53 timing gear, 54 main passages

551 outlets of 55 first subaisles

561 outlets of 56 second subaisles

Claims

1. the cooling unit of an engine, the bent axle of this engine drives the camshaft rotation by the timing chain of being located at the timing chain chamber and timing gear, in the camshaft of engine, offer the lubricant oil main passage, and on the main passage, offer first subaisle, it is characterized in that: on the main passage, also offer second subaisle, this camshaft is provided with bearing, be provided with the outlet of this second subaisle between this bearing of contiguous this timing chain chamber and the timing gear, and the outlet of this second subaisle is the top that is positioned at the cylinder body wall of this timing chain chamber side, lubricant oil is after the outlet ejection of this second subaisle, part is sprayed on these timing gear, simultaneously this lubricant oil part along the cylinder body wall of this timing chain chamber side to the dirty machine oil chamber of flowing back to.

2. the cooling unit of engine as claimed in claim 1 is characterized in that: be provided with a cam on this camshaft at least.

3. the cooling unit of engine as claimed in claim 1, it is characterized in that: this bearing is the both sides of being located at camshaft.

4. the cooling unit of engine as claimed in claim 1, it is characterized in that: the outlet of this first subaisle is to be positioned on the cam.

5. the cooling unit of engine as claimed in claim 1, it is characterized in that: these timing gear are to be positioned at the nearly timing chain of camshaft chamber side.