CN201125773Y

CN201125773Y - Multipurpose gasoline engine

Info

Publication number: CN201125773Y
Application number: CNU2007201927602U
Authority: CN
Inventors: 胡济荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-30
Filing date: 2007-11-30
Publication date: 2008-10-01
Anticipated expiration: 2017-11-30

Abstract

The utility model discloses a multipurpose gasoline engine including a transmission shifting mechanism (1), a starting point device (2), a clutch assembly (3), a cooling device, a motor oil pump (4), wherein the cooling device has a water pump cover (19), a right cover (7), a right crankcase (8), a cylinder body (27), a water pump module arranged on the right cover (7). A built-in channel 3 is arranged on the water pump cover (19), a built-in channel 4 is arranged on the right cover (7), while a built-in channel is arranged on the right crankcase (8), and one end of the built-in channel 4 on the right cover (7) and the water pump cover (19) compose the water pump built-in outlet, the other end is connected with the built-in channel of the right crankcase (8). A water annulus (5) is arranged on the cylinder body (27) connected with the built-in channel of the right crankcase (8). The utility model has reasonable structure, good cooling radiating effect and gas oil separating effect, small motor oil waste etc after adopting the structure.

Description

The multipurpose petrol engine

Technical field

The utility model relates to a kind of motor, particularly a kind of multipurpose water cooled engine.

Background technique

The problem that the water cooling in prior technology motor in use mainly exists has:

One, the cooling heat dissipation technology of Cai Yonging is by add an exit of pump on water pump cover, directly link to each other by external water pipe then with the water annulus of cylinder body, the water annulus circulation cooling that the water pump cooling water enters cylinder body through water pipe is discharged from the outlet pipe of cylinder head then and is got back to water tank; There is following defective: the one, the right side of water cooled engine is covered, right crankcase is overheated, causes complete machine temperature to raise; The 2nd, oil temperature is high, when serious even influence the work of motor; The 3rd, cost of production and operating cost height.

Two, the motor of prior art is because exhaust maze trough and original Mould design defective of left and right sides crankcase, when engine operation is carried out exhausting air, lubricating oil in the right crankcase can be blended in the exhaust maze trough that enters crankcase in the waste gas, the waste gas that is mixed with machine oil separates with machine oil owing to the exhaust maze trough at left and right sides crankcase can't effectively carry out gas, machine oil together discharges with gas when causing exhaust, thereby cause the motor fuel injection event, the machine oil loss is high.For this reason, the research and development that many institutes, manufacturer and knowledgeable people have carried out, but do not have the ideal method to solve the problems referred to above so far as yet.

Summary of the invention

For solving the problems referred to above that existing water cooled engine exists, the purpose of this utility model provides a kind of simple and reasonable, cooling heat dissipation effect and gas and oil good separating effect, the little multipurpose water cooled engine of machine oil loss.

The technological scheme that its technical problem that solves the utility model adopts, it comprises the casing assembly, the crank-connecting rod piston assembly, trasmission shifting system, the starting ignition device, clutch assembly, cooling unit, oil pump, lid about the casing assembly comprises, left and right sides crankcase, described cooling unit comprises water pump cover, right lid, right crankcase, cylinder body, water pump component, water pump component is installed in the right side and covers, water pump cover is fixedlyed connected with right lid, described water pump cover is provided with built-in water passage, the right side covers and is provided with built-in water passage, right crankcase is provided with built-in water passage, built-in water passage one end of right lid and water pump cover are formed the built-in outlet of water pump, the other end links to each other with the built-in water passage of right crankcase, described cylinder body is provided with water annulus, and the water annulus of cylinder body links to each other with the outlet of the built-in water passage of right crankcase.

Described water pump component comprises water pump vane, water-sealed component, pump shaft, oil sealing, bearing, water pump gear, and pump shaft is arranged on the right side and covers by water-sealed component, oil sealing, bearing, and water pump vane is fixed on the pump shaft head, and water pump gear is fixed on the pump shaft afterbody.

Be provided with exhaust gas circulating device in the cavity that described left and right sides crankcase is formed, this device is by exhaust maze trough and the passage that the mould assembling pad constitutes, the exhaust maze trough and the ventilation bend pipe of left crankcase of exhaust port, right crankcase are formed the exhaust passage up and down, be provided with filter screen on the passage that the exhaust maze trough of right crankcase and mould assembling pad constitute, the end face of filter screen hides upper air-vent.

The air inlet of the exhaust port up and down side of described right crankcase is provided with the ventilation dividing plate.

Described filter screen is the barrel shaped filter screen.

After adopting said structure, the cooling water of exit of pump flows through the built-in water passage of right lid, the built-in water passage and the cylinder body of right crankcase is provided with water annulus, discharge from the outlet pipe of cylinder head then and get back to water tank, mainly contain following advantage: the one, right lid, right crankcase, cylinder body obtain forcing cooling heat dissipation simultaneously, improve radiating effect, solved right lid, right crankcase and machine oil problems of excessive heat; The 2nd, owing to adopted built-in water channel to connect, omitted the socket, the external water pipe that are connected between water pump and the cylinder body, the complete machine outward appearance is further optimized; The 3rd, owing to adopted built-in water channel, under the prerequisite that guarantees mechanical strength, material and processing cost are further saved.Filter screen and ventilation dividing plate can effectively separate the waste gas that is mixed with machine oil, lubricating oil is come back in the right crankcase, this not only can solve the motor fuel injection event, reduce the environmental pollution that oil spout causes, make the motor qualified discharge, and can significantly reduce the loss of lubricating oil, reduce operating cost.This motor can be widely used in fields such as motorcycle, beach wagon, generator.

Description of drawings

Fig. 1 is an overall structure schematic representation of the present utility model.

Fig. 2 is the A-A partial sectional view of Fig. 1.

Fig. 3 is the B-B partial sectional view of Fig. 2.

Fig. 4 is the C-C partial sectional view of Fig. 2.

Fig. 5 is the D-D partial sectional view of Fig. 4.

Embodiment

Fig. 1 is the specific embodiments of the utility model versatile engine to shown in Figure 5.It comprises the casing assembly, the crank-connecting rod piston assembly, trasmission shifting system 1, starting ignition device 2, clutch assembly 3, cooling unit, oil pump 4, about comprising, the casing assembly covers 5,7, left and

right sides crankcase

6,8, the crank-connecting rod piston assembly comprises piston 11, bent axle 10, connecting rod 12, described cooling unit comprises water pump cover 19, right lid 7, right crankcase 8, cylinder body 27, water pump component, water pump component is installed on the right lid 7, water pump cover 19 is fixedlyed connected with right lid 7, right crankcase 8 one sides are fixed by mould assembling paper washer 15 and right lid 7, opposite side is connected with cylinder body 27 by mould assembling paper washer 28,3. described water pump cover 19 is provided with built-in water passage, 4. right lid 7 is provided with built-in water passage, right crankcase 8 is provided with built-in water passage, the built-in water passage of right lid 7 is an end and the built-in outlet of water pump cover 19 composition water pumps 4., the other end links to each other with the built-in water passage of

right crankcase

8,5. described cylinder body 27 is provided with water annulus, and 5. the water annulus of cylinder body 27 links to each other with the built-in water passage outlet of right crankcase 8.

Described water pump component comprises water pump vane 20, water-sealed component 21, pump shaft 22, oil sealing 23, bearing 24, water pump gear 25, pump shaft 22 is arranged on the right lid 7 by water-sealed component 21, oil sealing 23, bearing 24, water pump vane 20 is fixed on pump shaft 22 heads, and water pump gear 25 is fixed on pump shaft 22 afterbodys and is provided with back-up ring 26.Water-sealed component 21 can stop cooling water to flow in the right crankcase 8, and oil sealing 23 can stop that machine oil flows into built-in water passage, makes pump shaft 22 and bearing 24 obtain sufficient lubrication.

Described left and right sides crankcase 6, be provided with exhaust gas circulating device in 8 cavitys of forming, this device by exhaust port up and down 2., 1., the passage that the exhaust maze trough of right crankcase 8 and mould assembling pad 15 constitute, the exhaust maze trough of left crankcase 6 and ventilation bend pipe 18 are formed the exhaust passage, mould assembling pad 15 is provided with exhaust port, the effect of mould assembling pad 15 is to prevent left and right sides crankcase 6, leakage of oil between 8, and prevent that waste gas from directly entering left crankcase 6, on the passage that the exhaust maze trough of right crankcase 8 and mould assembling pad 15 constitute, be provided with filter screen 16, filter screen 16 is complementary with the exhaust maze trough of

right crankcase

8,2. the end face of filter screen 16 hides upper air-vent, and filter screen 16 is the barrel shaped filter screen; The exhaust port up and down of described right crankcase 8 2., 1. air inlet side is provided with ventilation dividing plate 17, and the effect of ventilation dividing plate 17 is to prevent to be mixed with in the casing waste gas of machine oil directly from exhaust port up and down 2., 1. discharge.

The utility model working principle is as follows: water pump gear 25 and crankshaft gear 9 engagements, work with motor, crankshaft gear 9 drives water pump gear 25 and rotates, and drive pump shaft 22 and water pump vane 20 work, 3. water pump sucks cooling water from the built-in water passage of water pump cover 19, through the built-in water passage of right side lid 7 4., the built-in water passage of right crankcase 8 and water annulus 5., discharge from the outlet pipe of cylinder head then and get back to water tank, right side lid 7, right crankcase 8, cylinder body 27 are forced cooling heat dissipation, thereby reach the right lid 7 of cooling, right crankcase 8 and cylinder body 27 purposes.

When engine piston 11 moves downward, cylinder body 27 internal volumes reduce, the casing internal pressure is increased and greater than barometric pressure, 1. the waste gas part that is mixed with machine oil under the pressure difference effect in the right crankcase 8 discharges through filter screen 16 filtrations from following exhaust port, also having part 2. to discharge through filter screen 16 from upper air-vent filters, waste gas filters the back by filter screen 16 and discharges from ventilation bend pipe 18, and machine oil is filtered by filter screen 16, because the effect machine oil of gravity sinks.When engine piston 11 was up, cylinder body 27 internal volumes increased, and the casing internal pressure were reduced and less than barometric pressure, and 1. machine oil got back to from exhaust port down and continued the lubricant oil effects in the right crankcase 8.Thereby the waste gas that is mixed with machine oil is effectively separated, and this not only can solve the motor fuel injection event, reduces the environmental pollution that oil spout causes, makes the motor qualified discharge, and can significantly reduce the loss of lubricating oil, reduces operating cost.

Claims

1, a kind of multipurpose petrol engine, comprise the casing assembly, the crank-connecting rod piston assembly, trasmission shifting system (1), starting ignition device (2), clutch assembly (3), cooling unit, oil pump (4), it is characterized in that: described cooling unit comprises water pump cover (19), right lid (7), right crankcase (8), cylinder body (27), water pump component, water pump component is installed on the right lid (7), water pump cover (19) is fixedlyed connected with right lid (7), described water pump cover (19) is provided with built-in water passage (3.), right lid (7) is provided with built-in water passage (4.), right crankcase (8) is provided with built-in water passage, built-in water passage (4.) end of right lid (7) and water pump cover (19) are formed the built-in outlet of water pump, the other end links to each other with the built-in water passage of right crankcase (8), described cylinder body (27) is provided with water annulus (5.), and the water annulus (5.) of cylinder body (27) links to each other with the outlet of the built-in water passage of right crankcase (8).

2, multipurpose petrol engine according to claim 1, it is characterized in that: described water pump component comprises water pump vane (20), water-sealed component (21), pump shaft (22), oil sealing (23), bearing (24), water pump gear (25), pump shaft (22) is arranged on the right lid (7) by water-sealed component (21), oil sealing (23), bearing (24), water pump vane (20) is fixed on pump shaft (22) head, and water pump gear (25) is fixed on pump shaft (22) afterbody.

3, multipurpose petrol engine according to claim 1 and 2, it is characterized in that: be provided with exhaust gas circulating device in the cavity that described left and right sides crankcase (6,8) is formed, this device is by exhaust maze trough and the passage that mould assembling pad (15) constitutes, the exhaust maze trough and the ventilation bend pipe (18) of left crankcase (6) of exhaust port (2., 1.), right crankcase (8) are formed the exhaust passage up and down, be provided with filter screen (16) on the passage that the exhaust maze trough of right crankcase (8) and mould assembling pad (15) constitute, the end face of filter screen (16) hides upper air-vent (2.).

4, multipurpose petrol engine according to claim 3 is characterized in that: the exhaust port up and down of described right crankcase (8) (2., 1.) air inlet side is provided with ventilation dividing plate (17).

5, multipurpose petrol engine according to claim 4 is characterized in that: described filter screen (16) is the barrel shaped filter screen.