CN202611874U - Single cylinder reciprocating piston diesel engine - Google Patents
Single cylinder reciprocating piston diesel engine Download PDFInfo
- Publication number
- CN202611874U CN202611874U CN 201220276467 CN201220276467U CN202611874U CN 202611874 U CN202611874 U CN 202611874U CN 201220276467 CN201220276467 CN 201220276467 CN 201220276467 U CN201220276467 U CN 201220276467U CN 202611874 U CN202611874 U CN 202611874U
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- single cylinder
- diesel engine
- cam
- reciprocating piston
- flywheel
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Abstract
The utility model provides a single cylinder reciprocating piston diesel engine, wherein one side of a crankcase is provided with a fly wheel, and the other side of the crank case is provided with a crankcase cover. The single cylinder reciprocating piston diesel engine comprises a camshaft (10) arranged in the crankcase, wherein an oil pump cam (12), an outlet cam (14) and an inlet cam (16) are arranged on the camshaft. In the direction facing to the crankcase cover, a lug boss of the oil pump cam, a lug boss of the inlet cam and a lug boss of the outlet cam are sequentially and anticlockwise arranged on the peripheral direction of the camshaft. According to the single cylinder diesel, when a person observes that the rotation direction of a crankshaft is clockwise from one side of the crankcase cover, the normal working processes such as air suction, compression, expansion and exhaustion can still be completed.
Description
Technical field
The utility model relates to a kind of diesel engine, relates in particular to a kind of air-cooled single cylinder reciprocating piston diesel engine.
Background technique
Fig. 1 is used to explain the structural representation of single cylinder reciprocating piston diesel engine, and has only shown the part-structure of diesel engine among the figure.As shown in Figure 1, diesel engine comprises piston 60, flywheel 62, camshaft 64, bent axle 66, crankcase cover 68 and starting electrical machinery 70.The sense of rotation of diesel engine is normally defined by the observed crankshaft rotating direction of crankcase cover side, and under normal operation, the sense of rotation of diesel engine is generally counterclockwise.But when some special applications, for example the vacuum oil scavenge pump of petroleum industry needs diesel engine to turn clockwise, and in order to guarantee the proper functioning of diesel engine in this case, needs the structure of adjustment diesel engine.
The model utility content
The purpose of the utility model provides a kind of single cylinder reciprocating piston diesel engine, makes to guarantee proper functioning when diesel engine rotates in the clockwise direction.
The utility model provides a kind of single cylinder reciprocating piston diesel engine, and a side of its crankcase is a flywheel, and opposite side is a crankcase cover.Single cylinder reciprocating piston diesel engine comprises a camshaft that is arranged in the crankcase, and camshaft is provided with a cam of injection pump, an intake cam and an exhaust cam.On the direction of said crankcase cover, the week that the convexity of the convexity of cam of injection pump, the convexity of intake cam and exhaust cam is positioned at camshaft successively counterclockwise makes progress.Single cylinder reciprocating piston diesel engine makes single cylinder diesel when being clockwise, still can normally accomplish the working procedure of air inlet, compression, expansion and exhaust in the sense of rotation of on the direction of crankcase cover, observing bent axle.
In another schematic mode of execution of single cylinder reciprocating piston diesel engine; Angle between the normal of normal that cam of injection pump is protruding and exhaust cam convexity is 48 degree, and the angle between the normal of the normal of intake cam convexity and exhaust cam convexity is 107 degree.
In the another kind of schematically mode of execution of single cylinder reciprocating piston diesel engine; In the piston pin hole of single cylinder reciprocating piston diesel engine piston along piston shaft to center line be parallel to the center line plane of piston; And this center line deviates from center line plane, and promoting mainly between the face at the cylinder of center line plane and single cylinder reciprocating piston diesel engine.
In another schematic mode of execution of single cylinder reciprocating piston diesel engine, to observe in direction towards flywheel, the bending direction of the blade of the flywheel fan of single cylinder diesel is circumferentially arranged along flywheel counterclockwise.
In another schematic mode of execution of single cylinder reciprocating piston diesel engine; Axis hole misalignment on the oil pump end cap of single cylinder diesel is arranged at driven gear rotating center in the oil pump of single cylinder diesel; By the crankcase cover unilateral observation of single cylinder diesel, the bent axle of single cylinder diesel turns clockwise and is rotated counterclockwise corresponding axis hole revenue centre and is symmetrical in the driven gear rotating center.
In another schematic mode of execution of single cylinder reciprocating piston diesel engine, the end face that at first contacts with the engaging tooth of the starter receiver of single cylinder diesel in each engaging tooth in the gear ring of flywheel is provided with a contact chamfering.
Hereinafter will be with clear and definite understandable mode, and the accompanying drawings preferred embodiment further specifies above-mentioned characteristic, technical characteristics, advantage and the implementation thereof of single cylinder reciprocating piston diesel engine.
Description of drawings
Following accompanying drawing is only done schematic illustration and explanation to the utility model, does not limit the scope of the utility model.
Fig. 1 is the structural representation of single cylinder reciprocating piston diesel engine.
Fig. 2 is a single cylinder reciprocating piston diesel engine in the end view towards the direction OHC of crankcase cover.
Fig. 3 is the schematic cross-section of the piston of single cylinder reciprocating piston diesel engine, the position that is used to explain piston pin hole.
Fig. 4 is used for the structural change of the flywheel fan of instruction book cylinder diesel.
Fig. 5 is used for the structural change of the machine oil pump shaft of instruction book cylinder diesel.
Label declaration
10 camshafts
11 camshaft centers
12 cam of injection pump
14 exhaust cams
16 intake cams
20 pistons
21 piston pin holes
22 pin-and-hole center lines
23 promote mainly face
24 center line plane
25 cylinders
30 flywheel fans
32 blades
40 bent axles
50 flywheels
52 oil pump end caps
54 axis hole centers
56 driven gear rotating centers
60 pistons
62 flywheels
64 camshafts
66 bent axles
68 crankcase covers
70 starting electrical machinerys.
Embodiment
Understand for technical characteristics, purpose and effect to model utility have more clearly, contrast the embodiment of description of drawings the utility model at present, identical label is represented identical or structural similarity but the identical part of function in each figure.
For making drawing succinct, only schematically shown out the part relevant among each figure with the utility model, they do not represent its practical structures as product.In addition, so that drawing succinctly is convenient to understand, the parts that in some figure, have same structure or function have only schematically illustrated one of them, or have only marked one of them.
In this article, " one " not only representes " only this ", also can represent the situation of " more than ".In this article, " on ", D score, " preceding ", " back ", " left side ", " right side " etc. only are used to represent the position relation between the relevant portion, and non-limiting their absolute position.
Fig. 2 is a single cylinder reciprocating piston diesel engine in the end view towards the direction OHC of crankcase cover, only schematically illustrates the part-structure of camshaft among the figure.Referring to Fig. 1 and Fig. 2, single cylinder reciprocating piston diesel engine, a side of its crankcase is a flywheel, opposite side is a crankcase cover.Camshaft 10 is arranged in the crankcase.Cam of injection pump 12, exhaust cam 14 and intake cam 16 are arranged on the camshaft 10; When (not showing among Fig. 2 by crankcase cover; Referring to Fig. 1) when the sense of rotation of unilateral observation bent axle is clockwise, the convexity of the convexity of cam of injection pump 12, intake cam 16 and the convexity of exhaust cam 14 be arranged in counterclockwise successively camshaft 10 axially on.
Single cylinder reciprocating piston diesel engine is that its camshaft structure is different from the situation of bent axle switched in opposite clockwise in the sense of rotation of observing bent axle towards the direction of crankcase cover.Through adjustment cam of injection pump, intake cam and exhaust cam relative position with respect to the camshaft center; Make single cylinder diesel when being clockwise, still can normally accomplish the working procedure of air inlet, compression, expansion and exhaust in the sense of rotation of on the direction of crankcase cover, observing bent axle.Angle between the normal of normal, intake cam that can also be through the adjustment cam of injection pump and the normal of exhaust cam is adjusted the valve timing of single cylinder diesel.In a kind of exemplary embodiment of single cylinder diesel; When the sense of rotation by bent axle unilateral observation bent axle when being clockwise; Angle between the normal of the normal of cam of injection pump 12 and exhaust cam 14 is 48 degree, and the angle between the normal of the normal of intake cam 16 and exhaust cam 14 is 107 degree.
Fig. 3 is the schematic cross-section of the piston of single cylinder reciprocating piston diesel engine, and the position that is used to explain piston pin hole only schematically illustrates the part-structure of piston among the figure.Referring to Fig. 1 and Fig. 3; The piston pin hole 21 of piston 20 along piston shaft to center line 22 be parallel to the center line plane 24 of piston 20; And center line 22 deviates from center line plane 24, and between the face of promoting mainly 23 of the cylinder 25 of center line plane 24 and single cylinder reciprocating piston diesel engine.Pin-and-hole is used to install the connecting rod of piston; Position through adjusting pin centerline hole and center line plane; Make in the sense of rotation of observing bent axle towards the direction of crankcase cover when being clockwise that the face of promoting mainly of piston can smooth motion in cylinder, avoids piston stuck in cylinder.
Fig. 4 is used for the structural change of the flywheel fan of instruction book cylinder diesel, only schematically shows the partial blade of flywheel among the figure.Dotted line is when to be illustrated in the sense of rotation of observing bent axle towards the direction of crankcase cover be counterclockwise among the figure, the structure of the flywheel fan of single cylinder diesel; Solid line is when to be illustrated in the sense of rotation of observing bent axle towards the direction of crankcase cover be clockwise among the figure, the structure of the flywheel fan of single cylinder diesel.Referring to Fig. 1 and Fig. 4,, on the direction of flywheel, observing bending direction circumferentially the arranging clockwise of the blade 32 of the flywheel fan 30 of single cylinder diesel along flywheel 50 when the sense of rotation of bent axle when being counterclockwise.When the sense of rotation of bent axle when being clockwise, on the direction of flywheel, observing bending direction circumferentially the arranging counterclockwise of the blade 32 of the flywheel fan 30 of single cylinder diesel along flywheel 50.Rotation direction through adjustment flywheel fan blade makes when bent axle turns clockwise, and the refrigeration wind energy that flywheel fan produces is enough to blow to the miscellaneous part of single cylinder diesel by flywheel, thereby guarantees the refrigeration of whole single cylinder diesel.
Fig. 5 is used for the change in location of the oil pump axis hole of instruction book cylinder diesel, only schematically shows the part-structure of oil pump among the figure.Dotted line is when to be illustrated in the sense of rotation of observing bent axle towards the direction of crankcase cover be counterclockwise among the figure, the machine oil pump structure of single cylinder diesel; Solid line is when to be illustrated in the sense of rotation of observing bent axle towards the direction of crankcase cover be clockwise among the figure, the machine oil pump structure of single cylinder diesel.Referring to Fig. 1 and Fig. 5; Driven gear rotating center 56 in the oil pump that is arranged at single cylinder diesel is departed from axis hole center 54 on the oil pump end cap 52 of single cylinder diesel; By the crankcase cover unilateral observation of single cylinder diesel, the bent axle of single cylinder diesel turns clockwise and is rotated counterclockwise corresponding 54 centers, axis hole center and is symmetrical in driven gear rotating center 56.When the sense of rotation of bent axle when being counterclockwise, to observe in direction towards flywheel, the axis hole center 54 on the oil pump end cap 52 of single cylinder diesel is arranged in the upper left side of the oil pump driven gear rotating center 56 of single cylinder diesel; And when the sense of rotation of bent axle when being clockwise, observe in the direction towards flywheel, the axis hole center 54 on the oil pump end cap 52 of single cylinder diesel is arranged in the lower right of the oil pump driven gear rotating center of single cylinder diesel.Position through adjustment oil pump axis hole makes when bent axle turns clockwise that the pressure in the oil pump in oil sucting cavity and the pressure chamber satisfies the requirement of oil delivery.
In addition, when being clockwise in the sense of rotation of on the direction of crankcase cover, observing bent axle, on the direction of flywheel, observing, the end face that at first contacts with the engaging tooth of starter receiver in each engaging tooth in the gear ring of flywheel is provided with a contact chamfering.Position through the total engaging tooth chamfering of adjustment flywheel ring gear makes when bent axle turns clockwise that the engaging tooth of starter gear can insert in the flywheel ring gear smoothly, guarantees the engagement of starter gear and flywheel ring gear.
In this article, " schematically " expression " is served as instance, example or explanation ", should any diagram, the mode of execution that be described to " schematically " in this article be interpreted as a kind of preferred or have more the technological scheme of advantage.
Be to be understood that; Though this specification is described according to each embodiment; But be not that each embodiment only comprises an independently technological scheme, this narrating mode of specification only is for clarity sake, and those skilled in the art should make specification as a whole; Technological scheme among each embodiment also can form other mode of executions that it will be appreciated by those skilled in the art that through appropriate combination.
The listed a series of detailed description of preceding text only is specifying to the feasibility embodiment of the utility model; They are not the protection domain in order to restriction the utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the utility model.
Claims (6)
1. single cylinder reciprocating piston diesel engine, a side of its crankcase is a flywheel, and opposite side is a crankcase cover, and it comprises:
A camshaft (10) that is arranged in the said crankcase, said camshaft (10) is provided with a cam of injection pump (12), an exhaust cam (14) and an intake cam (16),
It is characterized in that: on the direction of said crankcase cover, the week that the convexity of the convexity of said cam of injection pump (12), said intake cam (16) and the convexity of said exhaust cam (14) are arranged in said camshaft (10) successively counterclockwise makes progress.
2. single cylinder reciprocating piston diesel engine as claimed in claim 1; It is characterized in that: the angle between the normal of normal that wherein said cam of injection pump (12) is protruding and said exhaust cam (14) convexity is 48 degree, and the angle between the normal of the normal of said intake cam (16) convexity and said exhaust cam (14) convexity is 107 degree.
3. single cylinder reciprocating piston diesel engine as claimed in claim 1 is characterized in that: the piston pin hole (21) of wherein said piston (20) along said piston shaft to center line (22) be parallel to the center line plane (24) of said piston (20),
Said center line (22) deviates from said center line plane (24), and is positioned between the face of promoting mainly (23) of cylinder (25) of said center line plane (24) and said single cylinder reciprocating piston diesel engine.
4. single cylinder reciprocating piston diesel engine as claimed in claim 1; It is characterized in that: wherein by said flywheel unilateral observation, the bending direction of the blade (32) of the flywheel fan of said single cylinder diesel (30) is circumferentially arranged along said flywheel (50) counterclockwise.
5. single cylinder reciprocating piston diesel engine as claimed in claim 1 is characterized in that: wherein said crankcase cover is provided with an oil pump mounting point (52), and said oil pump mounting point (52) is provided with an oil pump axis hole center (54),
The rotating center (56) of driven gear in the oil pump that is arranged at said single cylinder diesel is departed from said oil pump axis hole center (54),
On the direction of said crankcase cover, the bent axle of said single cylinder diesel turns clockwise and the center, said axis hole center (54) that is rotated counterclockwise said correspondence is symmetrical in said driven gear rotating center (56).
6. single cylinder reciprocating piston diesel engine as claimed in claim 1 is characterized in that: the end face that at first contacts with the engaging tooth of the starter receiver of said single cylinder diesel in each engaging tooth in the gear ring of wherein said flywheel is provided with a contact chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276467 CN202611874U (en) | 2012-06-13 | 2012-06-13 | Single cylinder reciprocating piston diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276467 CN202611874U (en) | 2012-06-13 | 2012-06-13 | Single cylinder reciprocating piston diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202611874U true CN202611874U (en) | 2012-12-19 |
Family
ID=47345580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220276467 Expired - Lifetime CN202611874U (en) | 2012-06-13 | 2012-06-13 | Single cylinder reciprocating piston diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202611874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3026783A1 (en) * | 2014-10-07 | 2016-04-08 | Renault Sa | INTERNAL COMBUSTION ENGINE |
-
2012
- 2012-06-13 CN CN 201220276467 patent/CN202611874U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3026783A1 (en) * | 2014-10-07 | 2016-04-08 | Renault Sa | INTERNAL COMBUSTION ENGINE |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |