CN201176886Y - Engine crankshaft case structure - Google Patents

Abstract

The utility model provides a crankcase structure for an engine, which is filled with engine oil. The crankcase is provided with an engine oil drawing chamber; the engine oil drawing chamber comprises a filter screen, an elastic element, an oil suction pipe and an engine oil cover, wherein the inside of the engine oil cover is downward extensively provided with a holding part in which an auxiliary engine oil chamber is formed; the oil suction pipe is inserted into the auxiliary engine oil chamber, wherein the bottom end of the oil suction pipe is lower than the junction surface of the crankcase and the engine oil cover; therefore,, when sudden stop of a vehicle caused by brake during running makes the fluid surface of engine oil generate great shake, the oil suction pipe can be ensured to obtain the engine oil of the auxiliary engine oil chamber to avoid the defect that an engine oil pump can not suck the engine oil.

Description

The crankcase structure of engine

[technical field]

The utility model is the crankcase structure about a kind of engine.

[background technique]

General vehicle is in order to make the engine start smooth and easy, all can add machine oil and reach purpose with engine lubricating in engine.See also shown in Figure 1, existing engine 1 can be established a machine oil and get and draw chamber 12 in crankcase 11 belows, this machine oil is got to draw and is provided with a filter screen 121 in the chamber 12, one elastic element 122 and a machine oil lid 123, clean machine oil after filtering through filter screen 121 can be pumped to delivery line 14 by oil pump 13, flow to engine 1 appropriate location via delivery line 14 again, as the bent axle 15 in the crankcase 11, between piston 16 and cylinder 17 inwalls, with lubricated engine 1, machine oil in the last cylinder 17 will be recovered to machine oil again and get and draw in the chamber 12, so repetitive cycling is used, to reach the purpose of lubricated engine 1.

Have now and get the structure of drawing chamber 12 by said engine oil; though can reach the purpose that machine oil is filtered; yet; because the height and the crankcase 11 of this machine oil lid 123 are the states that slightly are contour; therefore; when vehicle stops because of brake moment in travelling; this machine oil is got the machine oil regular meeting liquid level that draws in the chamber 12 and is swung excessive; make the liquid level of machine oil then can temporarily be lower than the height of these delivery line 14 suction inlets; cause this oil pump 13 to be inhaled less than machine oil; and then cause the erroneous judgement of engine oil caution lamp, also cause the shortcoming that misguides the consumer simultaneously.

Other sees also shown in Figure 2, it is schematic representation for another existing engine machine grease chamber, this engine 2 is to be provided with a machine oil to get and draw chamber 22 in the below of crankcase 21 equally, this machine oil is got to draw and is provided with a filter screen 221 in the chamber 22, one elastic element 222, one fuel sucking pipe 223 and a machine oil lid 224, can utilize fuel sucking pipe 223 to pump to delivery line 24 in the clean machine oil after filtering through filter screen 221 by oil pump 23, flow to engine 2 appropriate locations via delivery line 24 again, wherein, this machine oil lid 224 is provided with a long-pending oily space 2241, when vehicle stops because of the moment of braking in travelling, and cause machine oil to get to draw machine oil liquid level in the chamber 22 to swing excessive and make the significantly lifting of machine oil liquid level, when the machine oil liquid level is in minimum point, though can accumulate machine oil partly by this long-pending oily space 2241, but, because the height of the suction inlet of this fuel sucking pipe 223 and the position of crankcase 21 bottoms are slightly to be contour, therefore, still can cause the temporary height that is lower than these fuel sucking pipe 223 suction inlets of liquid level meeting of this machine oil, cause this oil pump 23 to be inhaled less than machine oil, and cause the erroneous judgement of engine oil caution lamp, also cause the shortcoming that misguides the consumer simultaneously.

Because existing crankcase structure has above-mentioned shortcoming, so, how to overcome in vehicle driving because of brake moment stops, the liquid level of machine oil is produced when significantly rocking, the oil pump that produces inhale shortcoming less than machine oil, the real problem that is needed to be resolved hurrily for present vehicle manufacturer.

[model utility content]

The purpose of this utility model is the crankcase structure that is to provide a kind of engine, to overcome in vehicle driving because of brake moment stops, the liquid level of machine oil is produced when significantly rocking, and the institute's oil pump that produces suction is less than the shortcoming of machine oil.

Major technique means of the present utility model, be that a kind of crankcase structure of engine is being provided, in this crankcase machine oil is housed, and the machine oil that is provided with of this crankcase is got and is drawn the chamber, and this machine oil is got the chamber of drawing and included a filter screen, an elastic element, a fuel sucking pipe and a machine oil lid, and this machine oil lid inside is to be extended with a capacity downwards, this capacity forms a secondary machine oil chamber, this fuel sucking pipe is that to be inserted into this pair machine oil indoor, and wherein, the bottom of this fuel sucking pipe is the junction plane that is lower than crankcase and machine oil lid.

The beneficial effects of the utility model are: because the crankcase structure of the utility model engine is established a secondary machine oil chamber in the machine oil lid of crankcase, and the bottom that makes fuel sucking pipe is lower than the junction plane of crankcase and machine oil lid, whereby, when vehicle stops because of brake produces moment in travelling, and the liquid level that makes machine oil produces when significantly rocking, can guarantee that still fuel sucking pipe can obtain the machine oil supply of secondary machine oil chamber, can avoid producing the shortcoming of oil pump suction less than machine oil.

[description of drawings]

Fig. 1 is that existing engine oil is got the schematic representation that draws the chamber.

Fig. 2 is that another existing engine oil is got the schematic representation that draws the chamber.

Fig. 3 is that the utility model engine oil is got the schematic representation that draws the chamber.

Fig. 4 is the three-dimensional exploded view of the utility model machine oil lid.

Fig. 5 is that the utility model machine oil is got the generalized section of drawing the chamber.

[primary component symbol description]

1 engine, 11 crankcases, 12 machine oil are got and are drawn the chamber

121 filter screens, 122 elastic elements

123 machine oil lids, 13 oil pump

14 delivery lines, 15 bent axles

16 pistons, 17 cylinders

2 engines, 21 crankcases, 22 machine oil are got and are drawn the chamber

221 filter screens, 222 elastic elements

223 fuel sucking pipes, 224 machine oil lids

2241 long-pending oily spaces, 23 oil pump

24 delivery lines

3 engine 3s, 1 crankcase machine oil chambers 32

33 machine oil are got and are drawn chamber 331 filter screens

3311 root edges, 332 elastic elements

3321 root edges, 333 fuel sucking pipes

3331 root edges, 334 machine oil lids

The secondary machine oil of 3341 capacity 334a chamber

34 oil pump, 35 delivery lines

36 bent axles, 37 pistons

38 cylinder S junction planes

[embodiment]

Be the effect that enables to be easier to understand structure of the present utility model and can reach, cooperate graphic explanation as the back now:

At first, see also shown in Figure 3, the crankcase structure of the utility model engine, it mainly is to be provided with a machine oil chamber 32 in the below of the crankcase 31 of engine 3, in this machine oil chamber 32 machine oil is housed, one side of this machine oil chamber 32 is provided with a machine oil and gets and draw chamber 33, this machine oil is got and is drawn 33 tops, chamber and be provided with an oil pump 34, this oil pump 34 is to be connected to machine oil with a delivery line 35 to get and draw chamber 33 and engine 3 inside, machine oil can be pumped to delivery line 35 by this oil pump 34, flow to the engine 3 appropriate location via delivery line 35 again, as the bent axle 36 in the crankcase 31, between piston 37 and cylinder 38 inwalls, with lubricated engine 3, the machine oil in the last cylinder 38 will be recovered to machine oil again and get and draw in the chamber 33, so repetitive cycling is used, to reach the purpose of lubricated engine 3.

Please cooperate Fig. 4,5 to consult, machine oil of the present utility model is got and is drawn chamber 33 and include a filter screen 331, an elastic element 332, a fuel sucking pipe 333 and a machine oil lid 334.

Filter screen 331 is the dictyosome of a tubular, and it is to be located at machine oil to get the below of drawing chamber 33 machine oil outlet, when oil pump 34 is pumped machine oil to delivery line 35, the machine oil in the machine oil chamber 32 can be filtered by this filter screen 331;

Elastic element 332 is a spring, and it is the outer periphery that are sheathed on filter screen 331, and can form a restriction location to filter screen 331;

Fuel sucking pipe 333 is a hollow tube, and an end is to be sheathed on machine oil to get the machine oil outlet port of drawing chamber 33, and the other end then stretches in the filter screen 331;

Machine oil lid 334 is a lid, and the inside of this machine oil lid 334 is to be extended with a capacity 3341 downwards, and this capacity 3341 forms a secondary machine oil chamber 334a, and wherein, and this crankcase 31 is to be formed with a junction plane S with machine oil lid 334.

The utility model is when implementing, be fuel sucking pipe 333 1 ends to be sheathed on machine oil get the machine oil outlet port of drawing chamber 33, and filter screen 331 is sheathed on the outer periphery of this fuel sucking pipe 333, elastic element 332 then is located at the outer periphery of filter screen 331, at last machine oil lid 334 spiral shells is located at machine oil and gets the below of drawing chamber 33; By the machine oil lid 334 inner capacity 3341 formed secondary machine oil chamber 334a that extend downwards, can make the root edge 3311 of filter screen 331 be positioned at this pair machine oil chamber 334a, this fuel sucking pipe 333 is to be inserted in the secondary machine oil chamber 334a, and the bottom 3331 of this fuel sucking pipe 333 is the junction plane S that are lower than crankcase 31 and machine oil lid 334,332 of this elastic elements are positioned at secondary machine oil chamber 334a equally, and the root edge 3321 of elastic element 332 is the bottoms that are resisted against secondary machine oil chamber 334a, that is the root edge 3321 of this elastic element 332 is the junction plane S that are lower than this crankcase 31 and machine oil lid 334, and filter screen 331 is formed a compression restriction.

The utility model is to be extended with a capacity 3341 downwards by the inside in machine oil lid 334, and forms a secondary machine oil chamber 334a by this capacity 3341, and filter screen 331, elastic element 332 and fuel sucking pipe 333 all are inserted in this pair machine oil chamber 334a; When vehicle in travelling, stop because of brake moment or road conditions not good, it is temporary when significantly rocking that the liquid level of machine oil is produced, because the position of this pair machine oil chamber 334a is the place, more below that is positioned at crankcase 31 bottoms, and the root edge 3331 of fuel sucking pipe 333 is to be inserted in the secondary machine oil chamber 334a, and be lower than the junction plane S of crankcase 31 and machine oil lid 334, therefore should can guarantee to accumulate all the time organic oil among the pair machine oil chamber 334a, this fuel sucking pipe 333 then can continue to obtain the machine oil supply of secondary machine oil chamber 334a, so, engine 3 is when running, this oil pump 34 all can continually be delivered to the machine oil suction in the engine 3 by secondary machine oil chamber 334a, with lubricated engine 3.

Effect of the present utility model is, be extended with a capacity 3341 downwards by inside in machine oil lid 334, this capacity 3341 forms a secondary machine oil chamber 334a, and filter screen 331, elastic element 332 and fuel sucking pipe 333 all are inserted in this pair machine oil chamber 334a, and the root edge 3311,3321,3331 of filter screen 331, elastic element 332 and fuel sucking pipe 333 all is lower than the junction plane S of crankcase 31 and machine oil lid 334; Whereby, and when vehicle in travelling, stop because of brake moment or road conditions not good, it is temporary when significantly rocking that the liquid level of machine oil is produced, can guarantee that still the root edge 3331 of this fuel sucking pipe 333 can obtain the machine oil supply of secondary machine oil chamber 334a, and can avoid producing the shortcoming that oil pump 34 is inhaled less than machine oil, prevent erroneous judgement of engine oil caution lamp and the effect that misguides the consumer further to reach.

In sum, the utility model is by the crankcase structure of above-mentioned engine, really the effect that can promote use.

Claims (4)

1. the crankcase structure of an engine, in the crankcase of this engine machine oil is housed, and this crankcase is provided with a machine oil and gets and draw the chamber, this machine oil is got the chamber of drawing and is included a fuel sucking pipe and a machine oil lid, this machine oil lid inside is to be extended with a capacity downwards, this capacity forms a secondary machine oil chamber, and this fuel sucking pipe is that to be inserted into this pair machine oil indoor, and it is characterized in that: the bottom of this fuel sucking pipe is the junction plane that is lower than crankcase and machine oil lid.

2. the crankcase structure of engine as claimed in claim 1, it is characterized in that: this machine oil is got and is drawn an indoor filter screen and the elastic element of also being provided with, and the root edge of this filter screen is the bottom that is lower than fuel sucking pipe.

3. the crankcase structure of engine as claimed in claim 2, it is characterized in that: this elastic element is a spring.

4. the crankcase structure of engine as claimed in claim 2, it is characterized in that: the root edge of this elastic element is the junction plane that is lower than crankcase and machine oil lid.

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