JP2000345853A - Bent connecting rod engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform connecting rod movement having the same right and left amplitude width in the center line of a cylinder, by adopting a bent connecting rod so as to coping with an engine where the crankshaft of which is positioned apart from the center line of the cylinder. SOLUTION: In this connecting rod engine, a part of a tip on the crank pin C side of a connecting rod main body receds from the center line of the pin C, to connect the pin C to the end part hooklikely bent in the crank-shaft D direction in an explosion stroke. Moreover a bent connecting rod B, provided with a balance beam (j) on the extended portion on the opposite side to bending, is adopted to perform quiet operation having a few vibration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to enhancement of engine output by improving engine torque of a four-cycle engine.

[0002]

2. Description of the Related Art In a conventional four-cycle engine, a crankshaft is located on a center line of a cylinder.

[0003]

SUMMARY OF THE INVENTION In the present invention, the crankshaft of the engine is provided so as to be retracted from the center line of the cylinder on the side opposite to the handlebar of the explosion stroke, thereby improving the engine torque, that is, the engine output. Things.

[0004]

FIG. 1 is a view for explaining the operation of a conventional four-stroke engine (hereinafter simply referred to as the engine of FIG. 1) in an explosion stroke.
The center line (b) of (b) coincides with the vertical line of the center of the crankshaft (c). In the engine of FIG. 1, if temporarily at each position, such as the crank pin D _1, D-D _2, cylinder i is horizontally moved so that Konrotsudo Ho is always coincides with the center line and Russia on the cylinder Yi If the energy required for the horizontal movement, etc. is to be separately determined, the piston pin to the piston at each position such as crank pin ni ₁ , ni ni _2, etc. The engine torque should continue to be close to 100%.

[0005] Therefore, the four-stroke bent engine of the present invention shown in Fig. 2 is an explanation showing the operating state of the engine of the present invention having the same cylinder diameter and the same stroke volume as the engine of Fig. 1 in the explosion stroke. FIG. 3 is a partially detailed view of FIG. The center line E of the cylinder A of the engine of the present invention shown in FIG.
3 illustrates the engine of the present invention in the case of being provided close to the crankpin C side by / 3 b ^cm . That is, this is an engine of the present invention in which the crank shaft D is provided on the opposite side of the cylinder B in the explosion stroke from the center line E of the cylinder A by a distance of b ^cm . The center line F in the figure is a perpendicular line passing through the center of the crank shaft D, and corresponds to the center line B of the cylinder I of the engine in FIG.

As shown in FIG. 2 and FIG. 3, the crank B of the engine according to the present invention has a crankshaft D having an explosion stroke at the tip end on the side of the crank pin C so as to correspond to the space of b ^cm between the center lines EF. The bent portion is sufficiently reinforced so as to withstand a large explosive force in the cylinder A. The extension on the opposite side of the bent portion is a balance beam j for quiet operation of the engine.

[0007]

Operation and Effect In the engine of the present invention in which a space of b ^cm is provided between the center lines EF shown in FIGS. As shown by the point of intersection g with the center line E of the cylinder A, the engine torque of the crankshaft c at the same position of the crankpin D in the engine of FIG. The engine torque with respect to the crankshaft D at this point is such that the piston pin 1 of the piston H at the point of transmission of the explosive force has a crankpin C which is b ^cm smaller than the piston pin to the piston of the engine in FIG.
This shows that the engine torque is improved by about 30% as compared with the engine of FIG. 1 due to the transmission of the explosive force close to the side.

[0008] Similarly, the intersection g of each of the relative positions of the crank arm G at the positions of the crank pins C ₁ and C ₂ of the engine of the present invention and the center line E of the cylinder A shown in FIGS.
As indicated ₁ · _{g 2,} of the present invention an engine crank pin C
_In the case of ₁ · C _2, the engine torque with respect to the crankshaft D is actually improved by 40% or more as compared with the case of the same crankpins ₁ and ₂ of the engine of FIG. 1. 2 and FIG. 3, the engine of the present invention shown in FIG. 2 and FIG. 3 is a threat engine that can be expected to increase the output by about 30% or more compared to the engine of FIG.

Further, the explosion of the engine of the present invention is different from that of the engine of FIG.
, The side wall pressure lost between the piston H and the side wall of the cylinder A, which accounts for a part of the explosive force in the strong cylinder A, can be significantly reduced.

In addition, the engine of the present invention employs a bending connector B and has a simple structural change in which a space is provided between the crankshaft D and the center line E of the cylinder A, thereby increasing the threatening engine output. And cylinders and
Since the piston, intake / exhaust air, cooling, electric system, etc. are all exactly the same as the engine of FIG. 1, there is an effect that the engine can be easily developed.

In the above, the case where the distance between the center lines EF of the engine of the present invention is about 1 / 3.b ^cm of the length of the crank arm G has been described. The engine can be expected to increase the output anytime if you like.

It is natural that the top and bottom dead center positions on the circumference of the rotation locus of the crankpin C of the engine of the present invention slightly change, and the engine is tilted slightly with reference to the top and bottom dead center positions. Once installed, the engine can be quieter.

In the exhaust / compression stroke of the engine of the present invention, some extra energy is required compared to the engine of FIG. 1, but it is only minute compared to the threatening power increase. Things.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an operation state of a conventional four-stroke engine in an explosion stroke.

FIG. 2 is an explanatory view showing an operation state in an explosion stroke of the bent conduit four-stroke engine of the present invention.

FIG. 3 is a partially detailed view of the explanatory view of FIG. 2;

[Explanation of symbols]

Lee, A cylinder B, E, F centerline C, D crank shear shift D, D _1, D _{2, C,} C 1, _{C 2} crankpin E, B Konrotsudo F, H piston DOO, i piston pin G crank arm g , G ₁ , g ₂ intersection j balance beam b sign

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[Procedure amendment]

[Submission date] August 3, 1999 (1999.8.3)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

FIG. 1 is a view for explaining the operation of a conventional four-stroke engine (hereinafter simply referred to as the engine of FIG. 1) in an explosion stroke.
The center line (b) of (b) coincides with the vertical line of the center of the crankshaft (c). In the engine of FIG. 1, if temporarily at each position, such as the crank pin D _1, D-D _2, cylinder i is horizontally moved so that the connecting rod Ho is always coincident on the center line, Russia cylinder Yi if the energy required for the horizontal movement or the like separately, Kurankupi down
Ni ₁ ni ni ₂ and the like of the piston f at each position piston pin DOO is going to continue to provide engine torque close to 100% of the explosive force of the cylinder intragastrically crank shear shift Ha.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005] Therefore folding stove each time the engine of a four-cycle of the present invention shown in FIG. 2, the operation status of the power stroke of the present invention an engine having exactly the same cylinder over diameter and the same stroke volume and engine of FIG. 1 FIG. 3 is a partially detailed view of FIG. The center line E of the cylinder A of the engine of the present invention shown in FIG. 2 and FIG. 3 shows the engine of the present invention when it is provided close to the crankpin C side by about 1/3 b ^cm of the length of the crank arm G. It was done. That is, this is an engine of the present invention in which the crank shaft D is provided on the opposite side of the cylinder B in the explosion stroke from the center line E of the cylinder A by a distance of b ^cm . And the center line F in the figure
Is a vertical line passing through the center of the crankshaft D, and corresponds to the centerline b of the cylinder i of the engine in FIG.

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3 ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 7, 2000 (2000.2.7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Folded condro engine.

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to an engine in which a crankshaft is located away from the center line of a cylinder so that the engine can be operated quietly with less vibration.

[0002]

2. Description of the Related Art A conventional four-stroke engine disclosed in Japanese Unexamined Patent Publication No. 5-44493 has a crankshaft which is located on the center line of a cylinder and a crankshaft is moved from the center line of the cylinder to the opposite side of the explosion stroke. The piston was separated to the side, and the generation of nitrogen oxides was to be suppressed by using a gentle or sudden difference in piston speed between when the piston rises to the top dead center in the cylinder and when it descends.

However, when the crankshaft is separated from the center line of the cylinder, the crankshaft moves in a right and left direction with respect to the center line of the cylinder so as to have different amplitudes.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a four-stroke engine disclosed in JP-A-5-44493 (hereinafter simply referred to as a known engine) in which a crankshaft is located away from the center line of a cylinder. Instead of
It is an object of the present invention to eliminate the above-mentioned drawbacks by using a connector in which a part of the tip of the connector is bent so as to be connected to a crank pin located at a position apart from the range of the con- trol movement of the con- trol.

[0005]

Referring now to the drawings, FIG. 1 is an explanatory view showing an operation state of an explosion stroke of a normal four-stroke engine, and FIG. 2 is a diagram showing a crankshaft D and a cylinder of a known engine. A four-cycle book that uses a handle B that bends a part of its tip and connects it to a crankpin C when the distance between the center line E of A and the length of the crank arm G is about ３ · bcm. It is explanatory drawing which shows the operation | movement situation of the same explosion stroke of the bending coned engine of this invention, and FIG. 3 is the detail drawing.

As shown in FIG. 2 and FIG. 3, in the case of the handle B of the bent engine according to the present invention, the tip of the crank pin C side is hooked in the direction of the crank shaft D in the explosion stroke so as to correspond to the above-mentioned bcm interval. The bent tip is connected to the crankpin C, and a balance beam j is provided at an extension on the opposite side of the bent.

[0007]

FIG. 2 is a side view of the folded-type bent engine shown in FIG. 3 of the present invention. As shown in the dotted line in FIG. It is possible to perform the exercise with the amplitude width of
By providing the balance beam j on the extension part on the opposite side of the bending in consideration of the inertia of the control B itself, the engine can be operated with low vibration and quietness.

The conventional engine shown in FIG. 1 is an engine having exactly the same cylinder diameter and the same stroke volume as the bent portable engine of the present invention shown in FIG. 2, but if the engine shown in FIG. if crank pin, two _1-
Cylinder Yi moves horizontally to Konrotsudo Ho at each position, such as D-D ₂ is always aligned with the center line and Russia on the cylinder Yi, if the energy required for the horizontal movement or the like separately, cylinders -The explosive power in (a) should continue to provide the crankshaft (ha) at each position such as the crankpins ( ₁₎ , ( ₂₎ , ( ₂₎ and ( ₂₎ with an engine torque close to 100% of the explosive power at that position.

The engine of the present invention shown in FIGS.
When the distance between the crank shaft D and the center line E of the cylinder A is about 1 / 3.bcm of the length of the crank arm G, the intersection g between the crank arm G and the center line E of the cylinder A is As shown, the explosion in cylinder A is bc
m, which is close to the side of the crankpin C, and includes the same reduction in the side wall pressure loss energy dissipated between the side wall of the cylinder A and the piston H, as in the case of the engine shown in FIG. This indicates that the engine torque of the engine of the present invention with respect to the crankshaft D at the position of the crankpin C is improved by about 30% with respect to the engine torque of the crankshaft c at the position of.

In the same manner, g at the intersection of the center line E of the cylinder A and the respective positions of the crank arm G at the positions of the crank pins C ₁ and C ₂ of the engine shown in FIGS.
As indicated ₁ · _{g 2,} of the present invention an engine crank pin C
Compared with the case as well of the same crank pin D ₁ · D ₂ of the engine 1 when the _{1-C 2,} this indicates that the engine torque is also improved more than 40% with respect to the crank shear shift D, or When the engine of the present invention shown in FIGS. 2 and 3 is comprehensively considered, it is expected that the output can be increased by about 30% as compared with the normal engine shown in FIG.

The engine of the present invention shown in FIG. 2 and FIG. 3 employs a control B in the ordinary engine shown in FIG. 1 and changes the position of the cylinder I or the crankshaft C. This is also a threat. The engine output can be increased, and the engine can be easily developed.

In the engine of the present invention shown in FIG. 2 and FIG. 3, it is natural that the position of the top and bottom dead center on the circumference of the rotation locus of the crankpin C slightly changes. It requires extra energy, which is only subtle compared to the increased power of the engine of the present invention. Further, the engine can be expected to further increase the output depending on the value of bcm.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an operation state of an ordinary engine during an explosion stroke.

FIG. 2 is an explanatory view showing an operation state of an explosion stroke of a bent convolved engine of the present invention which employs a crooked convoluted engine.

FIG. 3 is a partial detailed view of the explanatory diagram of FIG. 2;

[EXPLANATION OF SYMBOLS] Lee, A cylinder B, E, F centerline C, D crank shear shift D, D _1, D _{2, C,} C 1, _{C 2,} the crank pin e, B Konrotsudo F, H piston bets, i piston pin G crank arm _g, g _1, g ₂ intersection j balance beam b code ──────────────────────────────── ─────────────────────

[Procedure amendment]

[Submission date] February 15, 2000 (2000.2.1
5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Folded condro engine.

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to an engine in which a crankshaft is located away from the center line of a cylinder so that the engine can be operated quietly with less vibration.

[0002]

2. Description of the Related Art A conventional four-stroke engine disclosed in Japanese Unexamined Patent Publication No. 5-44493 has a crankshaft which is located on the center line of a cylinder and a crankshaft is moved from the center line of the cylinder to the opposite side of the explosion stroke. The piston was separated to the side, and the generation of nitrogen oxides was to be suppressed by using a gentle or sudden difference in piston speed between when the piston rises to the top dead center in the cylinder and when it descends.

However, when the crankshaft is separated from the center line of the cylinder, the crankshaft moves in a right and left direction with respect to the center line of the cylinder so as to have different amplitudes.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a four-stroke engine disclosed in JP-A-5-44493 (hereinafter simply referred to as a known engine) in which a crankshaft is located away from the center line of a cylinder. Instead of
A part of the tip of the control body is separated from its center line by a bent connector that connects the crankpin to the end bent like a hook so as to connect to the crankpin located farther from the range of the control body movement. It is intended to eliminate the above-mentioned disadvantages by adopting it.

[0005]

Referring now to the drawings, FIG. 1 is an explanatory view showing an operation state of an explosion stroke of a normal four-stroke engine, and FIG. 2 is a diagram showing a crankshaft D and a cylinder of a known engine. Operating state of the bent-conduit engine of the present invention employing the bent-conduit B in the engine in the case where the distance between the center line E of A and the length of the crank arm G is about ３ · b ^cm. FIG. 3 is a partially detailed view of FIG.

As shown in FIG. 2 and FIG. 3, the folding connector B of the folding engine of the present invention has the above-mentioned b ^cm
Crank pin C
A part of the tip on the side departs from the center line, a crank pin C is connected to the end bent like a hook in the direction of the crankshaft D in the explosion stroke, and a balance beam j is attached to the extension on the opposite side of the bent part. Is provided.

[0007]

2 and FIG. 3, the bending knob B of the engine of the present invention has the same amplitude width on the left and right with respect to the center line E of the cylinder A as shown by the dotted line in FIG. And the balance beam j in consideration of the equal inertia of the console itself, it is possible to operate the engine with low vibration and quietness.

The conventional engine shown in FIG. 1 is an engine having exactly the same cylinder diameter and the same stroke volume as the bent portable engine of the present invention shown in FIG. 2, but if the engine shown in FIG. if crank pin, two _1-
Cylinder Yi moves horizontally to Konrotsudo Ho at each position, such as D-D ₂ is always aligned with the center line and Russia on the cylinder Yi, if the energy required for the horizontal movement or the like separately, cylinders -The explosive power in (a) should continue to provide the crankshaft (ha) at each position such as the crankpins ( ₁₎ , ( ₂₎ , ( ₂₎ and ( ₂₎ with an engine torque close to 100% of the explosive power at that position.

The engine of the present invention shown in FIGS.
When the distance between the crank shaft D and the center line E of the cylinder A is about 1/3 · b ^cm of the length of the crank arm G, an intersection g between the crank arm G and the center line E of the cylinder A is assumed. The explosion in cylinder A is b
Since ^cm is only carried out close to the crank pin C side, including a decrease in side wall pressure loss energy loss between the side wall and the piston H of the cylinder A, the same crank pin two of the engine 1 This shows that the engine torque of the crankshaft C of the engine of the present invention with respect to the crankshaft D at the position of the crankpin C is improved by about 30% with respect to the engine torque of the crankshaft C at the position.

In the same manner, g at the intersection of the center line E of the cylinder A and the relative positions of the crank arm G at the positions of the crank pins C ₁ and C ₂ of the engine of the present invention shown in FIGS.
As indicated ₁ · _{g 2,} of the present invention an engine crank pin C
Compared with the case as well of the same crank pin D ₁ · D ₂ of the engine 1 when the _{1-C 2,} this indicates that the engine torque is also improved more than 40% with respect to the crank shear shift D, or When the engine of the present invention shown in FIGS. 2 and 3 is comprehensively considered, it is expected that the output can be increased by about 30% as compared with the normal engine shown in FIG.

The engine of the present invention shown in FIG. 2 and FIG. 3 is a threat to the engine shown in FIG. 1 merely by employing a folding connector B and changing the position of the cylinder I or the crankshaft C. In other words, the output of the engine can be increased, and the engine can be easily developed.

In the engine of the present invention shown in FIG. 2 and FIG. 3, it is natural that the position of the top and bottom dead center on the circumference of the rotation locus of the crankpin C slightly changes. It requires extra energy, which is only subtle compared to the increased power of the engine of the present invention. Also by the Sensawa Ikan numbers of b ^cm connexion is an engine that further power enhancement can be expected.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an operation state of an ordinary engine during an explosion stroke.

FIG. 2 is an explanatory view showing an operation state of an explosion stroke of a bent con- trolled engine of the present invention in which a bent engine is employed in a known engine.

FIG. 3 is a partially detailed view of the explanatory view of FIG. 2;

[EXPLANATION OF SYMBOLS] Lee, A cylinder B, E, F centerline C, D crank shear shift D, D _1, D _{2, C,} C 1, _{C 2} crankpin E Konrotsudo B bent Konrotsudo F, H piston pin DOO , i piston pin G crank arm _g, g _1, g ₂ intersection j balance beam b code

Claims (1)

[Claims] An engine crankshaft (D) is provided so as to be retracted from a center line (E) of a cylinder (A) to a side opposite to a rod (B) in an explosion stroke, and a rod (B) is provided.
A bent convolved engine in which the tip of the crank pin (C) side is slightly bent in the direction of the crankshaft (D) to cope with it.