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General-purpose V-type engine

A technology of engine and air intake channel, which is applied in the direction of engine components, engine control, combustion engine, etc., and can solve the problems of dew condensation on the valve stem of the throttle valve, inability to use the engine immediately, icing, etc.

Inactive Publication Date: 2012-05-09
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After using a general purpose V engine and leaving it outside mostly at night for long periods of time, in cold weather there can be severe condensation and icing around the valve stem of the throttle, sometimes causing the is immobilized so that the engine cannot be used immediately

Method used

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Examples

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Embodiment Construction

[0022] Next, preferred embodiments of the present invention will be described based on the drawings.

[0023] exist figure 1 and figure 2 In , an example in which the present invention is applied to a general-purpose V-type two-cylinder engine E will be described. The engine E is composed of the following parts: a crankcase 2 supporting the crankshaft 1; a first cylinder bank B1 and a second cylinder bank B2, which are connected to the upper part of the crankcase 2, and lead to the axis A1 of the above-mentioned crankshaft 1; Facing P1 as the center, it is arranged in a V-shape. The vertical plane P1 includes a bisector of an included angle α (90° in the illustrated example) between the second axes A2, A2 of the first cylinder bank B1 and the second cylinder bank B2.

[0024] The first cylinder bank B1 and the second cylinder bank B2 each have one cylinder 3 . A piston 5 is fitted into each cylinder 3 , and the piston 5 is connected to the crankshaft 1 via a connecting ro...

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Abstract

The present invention provides a general-purpose V-type engine, which can easily prevent a large amount of condensation from being generated and freezing around the valve shaft of a throttle valve even in a cold weather. To a first bank B1 and a second bank B2, a first throttle body T1 and a second throttle body T2 placed between the banks B1, B2 are attached, respectively, in such a manner that an axis A3 of an intake path 8 of each of the first throttle body T1 and the second throttle body T2 is substantially perpendicular to an axis A2 of a corresponding one of the banks B1, B2. Each of the throttle bodies T1, T2 has a throttle valve 9 pivotally supported therein and the fuel injection valve 10 injecting fuel to the intake path 8 at a part downstream of the throttle valve 9. The throttle valve 9 of each of the first and second throttle bodies T1, T2 is placed in such a manner that an axis A4 of a valve shaft 9a of the throttle valve 9 is substantially orthogonal to the axis A3 of the corresponding intake path 8 and is substantially parallel to the axis A2 of a corresponding one of the banks B1, B2.

Description

technical field [0001] The present invention relates to an improvement of a general-purpose V-type engine. The general-purpose V-type engine is provided with a first cylinder bank and a second cylinder bank connected to the crankcase supporting the crankshaft. The first cylinder bank and the second cylinder bank contain The plane of the crankshaft axis is centered in a V shape, and an engine mounting surface is formed on the crankcase, and the engine mounting surface is approximately perpendicular to the plane and approximately horizontal, or approximately vertical and approximately horizontal to the crankshaft axis. Background technique [0002] Such a general-purpose V-type engine is known as disclosed in Patent Document 1, for example. [0003] After using a general purpose V engine and leaving it outside mostly at night for long periods of time, in cold weather there can be severe condensation and icing around the valve stem of the throttle, sometimes causing the is imm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B75/22F02F7/00F02D9/08F02M61/14
CPCY02T10/123Y02T10/12
Inventor 松田迅人斋藤照幸
Owner HONDA MOTOR CO LTD
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