CN1163664C

CN1163664C - Motorcycle IC engine

Info

Publication number: CN1163664C
Application number: CNB001069705A
Authority: CN
Inventors: 弗朗茨・莱孟伯克; 弗朗茨·莱孟伯克
Original assignee: AVL List GmbH
Current assignee: AVL List GmbH
Priority date: 1999-04-19
Filing date: 2000-04-18
Publication date: 2004-08-25
Anticipated expiration: 2020-04-18
Also published as: AT3397U1; TW482249U; CN1270897A

Abstract

This invention relates to an internal combustion engine for a motorcycle, with two or more single cylinders arranged in a plane approximately normal to a crankshaft, each cylinder accommodating a reciprocating piston and the pistons acting via connecting rods on the same crank of the crankshaft supported in a crankcase. To reduce manufacturing expense, the engine is to be provided with modular components for universal use with at least two different cylinder arrangements (V-type, W-type).

Description

Motorcycle IC engine

Technical field

The present invention relates to a kind of motorcycle IC engine, it has two or more single-cylinders that are installed on the plane that is approximately perpendicular to bent axle, a reciprocating piston is installed in each cylinder, and each piston utilizes some connecting rod work, and these connecting rods are on the same crank that is installed in the bent axle in the crankcase.

Background technique

294 264 li of U.S. Pat D, the motorcycle IC engine that is disclosed comprises two cylinders, and this two cylinder is arranged to V-type and radially faces toward a bent axle, and each cylinder acts on the crank by connecting rod.The characteristics of this type internal-combustion engine are very compact and have very short overall length, therefore it laterally can be installed on the motorcycle.Because layout and space, the cubic capacity of each cylinder is limited.Total cubic capacity can only improve by increasing more cylinder, yet this is with the overall length of increasing combustion engine.

Disclosed in the prior art another alternative embodiment is used three cylinders, and they are installed into radially the bent axle of internal-combustion engine relatively, wherein, by each connecting rod on the common crank of the piston action that slides in the cylinder at bent axle.This cylinder becomes internal-combustion engine that the W type arranges at U. S. Patent the 5th, 765, introduction is arranged in No. 451.Have W type cylinder structure and these cylinders be located substantially on the compact structure that also can obtain to have very short overall length perpendicular to the internal-combustion engine in the plane of bent axle.Compare with V-type internal combustion engine, extra cylinder will improve the performance characteristic of internal-combustion engine and significantly increase its cubic capacity, and keep smaller volume simultaneously.And big piston sweep volume will allow to have good engine performance when relatively low rotating speed, and have internal-combustion engine sound typical, fully loaded, relative low frequency.

V-type and the different performance of W type internal-combustion engine will satisfy different Consumers' needs.

In order to satisfy on the one hand the requirement of V-type internal combustion engine, to satisfy the requirement of W type internal-combustion engine on the other hand, in normal circumstances different manufacturing and delivery system must be installed, and this will need considerable manufacturing and logistic work, comprise high manufacturing expense.

Summary of the invention

An object of the present invention is to avoid above-mentioned defective, so that reduce the expense of the internal-combustion engine of making the above-mentioned type.

In the present invention, this purpose is by using the modular type spare part in common use that is applicable to two kinds of different cylinder structures at least to realize.A kind of modular system that supplies motorcycle IC engine to use, this internal-combustion engine has at least two and is arranged in perpendicular to the single-cylinder on the plane of a bent axle, one reciprocating piston is installed in each cylinder, piston acts on by connecting rod on the same crank of the bent axle that is positioned in the crankcase, wherein, described system is provided with general modular parts in V-type cylinder structure and W type cylinder structure, and the described crankcase that is used for described V-type cylinder structure or described W type cylinder structure has identical crankcase body and the different flange surface of using for the cylinder of described V-type cylinder structure or W type cylinder structure.

By provide at least one group with cylinder arrangement become the corresponding internal-combustion engine of V-type identical, by the part that cylinder head, cylinder, piston, connecting rod, series of valves are formed, can improve internal-combustion engine operation simplification and the effect ratio of forming by at least three cylinders that become the W type to arrange during fabrication satisfactorily.

In addition, preferably also provide at least one group to become the corresponding internal-combustion engine of V-type part identical, that form by trunnion shaft, equilibrium block, starter, generator, clutch, torque limiter, manual drive, oil pump, water pump with cylinder arrangement.If the part of same type can be used for V-type and W type internal-combustion engine,, therefore can simplify manufacturing process significantly on same production line because these parts can be made and assemble.Because modular design and part are shared principle, thereby can produce in enormous quantities, and then reduce production costs.If have at least one group to become the internal-combustion engine of V-type part identical, that, intermediate gear lubricated by food tray, oil cooler, dry type fuel feeding, belt and chain are formed, will further improve the effect ratio with cylinder arrangement.According to the type of internal-combustion engine, vaporizer or be used for multi-point injection or the injection apparatus of direct injection can be identical on type.

In order to reduce the manufacture cost of crankcase, suggestion is used the technological equipment identical with the crankcase body of the corresponding internal-combustion engine with V-type cylinder structure to the crankcase body of using for W type internal-combustion engine.Except the cylinder flange, can on identical production line, process with the crankcase that W type internal-combustion engine is used for V-type.

Large batch of shared part also has extra advantage, though available throughput be fully used, and make reduce to dead time minimum.

V-type internal combustion engine has the exhaust flange face usually, and they are positioned at the outer side surface of cylinder head.In order in V-type internal combustion engine and W type internal-combustion engine, to use identical cylinder and cylinder head, advise that each cylinder head has a front side exhaust flange face, this front side exhaust flange face preferably is positioned in the plane perpendicular to crankshaft center line.Like this, exhaust duct can be away from the front side of internal-combustion engine, thereby forms the enclosed space of cylinder, and makes the needed space of internal-combustion engine reduce to minimum.

In order in various type of internal combustion engine, to use one and same crankcase, this crankcase also to have for connecting the intermediate gear flange surface that intermediate gear is used.Intermediate gear as reduction gear can be designed to movably, so that can change reduction speed ratio.

Intermediate gear as reduction gear can also be provided, and it is removable, so that can change reduction speed ratio, also can obtain a special advantage by provide one to crankcase in its downside oil pan flange, promptly carries a food tray.Fuel tank or oil cooler form the lubricated part of dry type fuel feeding of internal-combustion engine.

Description of drawings

With reference now to accompanying drawing, describe the present invention in detail, in the accompanying drawings:

Fig. 1 is the transverse sectional view according to an internal-combustion engine of the present invention, and it has W type cylinder structure;

Fig. 2 is the transverse sectional view with internal-combustion engine of V-type cylinder structure;

Fig. 3 is the longitudinal sectional view according to the III-III line of an internal-combustion engine of the present invention in Fig. 5;

Figure 4 and 5 are the views according to two kinds of modification of internal-combustion engine of the present invention;

Fig. 6 has shown the sectional view of the internal-combustion engine among Fig. 5 along the VI-VI line.

Embodiment

In all embodiments, identical part is represented with identical label.And the cylinder structure of V-type or W type is generally represented with V or W.

Fig. 1 has shown the internal-combustion engine of the cylinder 1 with W type layout.Each cylinder is installed a reciprocating piston 2 for 1 li, and they are connected with bent axle 4 by connecting rod 3.One cylinder head 5 is installed on each cylinder 1, and each cylinder head 5 is identical with the single-cylinder lid and series of valves 6 is installed, and this series of valves 6 comprises camshaft 7, oiling crossover valve 8 and rocking arm 9.Each cylinder head 5 has the exhaust flange face 10 in the internal-combustion engine front side, and they are located substantially on the plane perpendicular to crankshaft center line 4 '.The exhaust port that leads to exhaust flange face 10 is represented with label 11.One vaporizer 13 is installed on each suction tude 12.There are two spark plugs 15 firing chamber of each cylinder 1 for 14 li, as shown in Figure 3.

Bent axle 4 is installed in 16 li of crankcases.Dimeric crankcase 16 can separate at vertical plane 29 places of relative crankshaft center line 4 '.16 li of crankcases are also installed a trunnion shaft 17 that has an equilibrium block 18.Label 19 expressions one manual transmission device.

Fig. 2 has shown that one has into the internal-combustion engine of two cylinders 1 that V-type arranges.In order to reduce manufacture cost, W type internal-combustion engine shown in Fig. 1 and the 3-5 is design like this, and promptly the component with internal-combustion engine shown in Figure 2, that 1 one-tenth V-type of its cylinder is arranged are identical basically such as cylinder head 5, cylinder 1, piston 2, series of valves 6, trunnion shaft 17, equilibrium block 18a, starter 23, generator 25, clutch 27, torque limiter 28, manual drive 19, oil pump 24, water pump 26 and/or component such as vaporizer 13 or injection apparatus.In this embodiment, oil pump 24 and water pump 26 are positioned on the same axle.Like this, above-mentioned parts can be made on same manufacturing equipment.

In addition, can share by V-type and W type internal-combustion engine such as component such as food tray 21, oil cooler 21 ', intermediate gear 20, belt and/or chains.

Fig. 4 has shown a modification of the internal-combustion engine of the cylinder 1 with W type layout, and it comprises an intermediate gear 20 as reduction gear.Fig. 5 has shown the internal-combustion engine of the cylinder 1 with W type layout, and wherein, the downside of crankcase 16 is provided with an oil pan flange 167, so that the food tray 21 of similar fuel tank or oil cooler 210 is installed.Label 21 " the cooling fin on the expression oil cooler 21 '.Fig. 6 has shown the view of this internal-combustion engine of looking from below.

The crankcase 16 of W type internal-combustion engine is like this design, and crankcase body 160, promptly the crankcase 16 except the flange surface 22 of steam supply cylinder 1 usefulness can create with identical instrument and the instrument adjustment mode of making in the internal-combustion engine as shown in Figure 2,1 one-tenths V-type layout of its cylinder of crankcase 16a.The flange surface of the correspondence of steam supply cylinder 1 usefulness in the V-type internal combustion engine is represented with label 22a in Fig. 2.

Crankcase body 160 comprises crankcase side wall 161, main abutment wall 162, balance shaft housing 163, trunnion shaft support 164, manual drive housing 165, gear shaft abutment wall 166.

In the present invention, the main parts size of V-type and W type internal-combustion engine can create on same production line, thereby can reduce manufacture cost satisfactorily.

Claims

1. modular system of using for motorcycle IC engine, this internal-combustion engine has at least two and is arranged in perpendicular to the single-cylinder (1) on the plane of a bent axle (4), a reciprocating piston (2) is installed in each cylinder (1) lining, piston (2) acts on by connecting rod (3) and is positioned at crankcase (16, on the same crank of the bent axle 16a) (4), it is characterized in that, described system is provided with general modular parts in V-type cylinder structure and W type cylinder structure, the described crankcase (16 that is used for described V-type cylinder structure or described W type cylinder structure, 16a) have identical crankcase body (160) and the different flange surface of using for the cylinder of described V-type cylinder structure or W type cylinder structure (22,22a).

2. modular system as claimed in claim 1 is characterized in that, described crankcase body (160) comprises main abutment wall (162) and crankcase side wall (161) at least.

3. modular system as claimed in claim 2 is characterized in that, described crankcase body (160) is provided with the balance shaft housing (163) that comprises trunnion shaft abutment wall (164).

4. as claim 2 or 3 described modular systems, it is characterized in that described crankcase body (160) is provided with the manual transmission housing (165) that comprises gear shaft abutment wall (166).

5. modular system as claimed in claim 1, it is characterized in that, in the internal-combustion engine of the cylinder (1) with at least three one-tenth W types layouts, at least one group of component of being made up of cylinder head (5), cylinder (1), piston (2), connecting rod (3), series of valves (6) are identical with the component of the corresponding internal-combustion engine of cylinder (1) one-tenth V-type layout.

6. modular system as claimed in claim 5, it is characterized in that, in the internal-combustion engine of the cylinder with at least three one-tenth W types layouts, at least one group of component of being made up of trunnion shaft (17), equilibrium block (18a), starter (23), generator (25), clutch (27), torque limiter (28), manual drive (19), oil pump (24), water pump (26) are identical with the component of the corresponding internal-combustion engine of cylinder (1) one-tenth V-type layout.

7. as claim 5 or 6 described modular systems, it is characterized in that, in the internal-combustion engine of the cylinder with at least three one-tenth W types layouts, at least one group of component of being made up of food tray (21), oil cooler (21 '), intermediate gear (20), belt, chain, injection apparatus, vaporizer (13) are identical with the component of the corresponding internal-combustion engine of cylinder (1) one-tenth V-type layout.

8. modular system as claimed in claim 5, it is characterized in that, in the internal-combustion engine of the cylinder with at least three one-tenth W types layouts, described crankcase body (160) uses instrument and the instrument adjustment mode identical with the crankcase body (160) of the corresponding internal-combustion engine of making cylinder (1) one-tenth V-type layout to make.

9. modular system as claimed in claim 1 is characterized in that, each cylinder head (5) has a front side exhaust flange face (10), and this exhaust flange face is on the plane that is positioned at perpendicular to crankshaft center line (4 ').

10. modular system as claimed in claim 1 is characterized in that, described crankcase (16) also has the intermediate gear flange surface (20 ') of connection intermediate gear (20).

11. modular system as claimed in claim 10 is characterized in that, the intermediate gear (20) that is designed to reduction gear is removable, to change reduction speed ratio.

12. modular system as claimed in claim 1 is characterized in that, the downside of described crankcase (16) is provided with oil pan flange (167), with carrying food tray (21).

13. modular system as claimed in claim 12 is characterized in that, the food tray (21) that is connected on the described crankcase (16) by flange has cooling fin (21 "), and be designed to fuel tank or oil cooler (210) in its outside.