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Float type oil level detection device

A technology of oil level detection and float type, which is applied in the directions of lubrication indicator devices and lubrication parts, etc., which can solve the problems of rising costs and increasing the number of parts

Active Publication Date: 2018-07-20
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of such a switch increases the number of parts and increases the cost

Method used

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  • Float type oil level detection device
  • Float type oil level detection device
  • Float type oil level detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to figure 1 . figure 1 It is a sectional view of the engine 10 viewed from the direction in which the crankshaft 15 extends. The engine 10 is an inclined-cylinder type OHC air-cooled single-cylinder internal combustion engine in which the cylinder 16 is inclined with respect to the crankshaft 15 .

[0044] The engine 10 has: a crankcase 11; a cylinder block 12 integrally formed with the crankcase 11; a cylinder head 13 provided on an end of the cylinder block 12;

[0045] A crankshaft 15 is rotatably accommodated inside the crankcase 11 . A cylinder 16 is formed inside the cylinder block 12 , and a piston 17 reciprocating in the cylinder 16 is disposed. Piston 17 is connected to crankshaft 15 via connecting rod 18 and crankpin 19 .

[0046]An intake port 21 and an exhaust port 22 are formed inside the cylinder head 13 , and a valve drive mechanism 30 is also provided. The valve driving mechanism 30 is composed of a camshaft 31 , a swing shaft 32 , an intake v...

Embodiment 2

[0073] Next, Embodiment 2 of the present invention will be described. Embodiment 2 differs from Embodiment 1 in the shape of the inclined portion in the housing 50 and the float 60 . The other structures are the same as the oil level detection device 40 of the first embodiment, and the reference numerals are used below and the description is omitted.

[0074] refer to Figure 5 and Figure 6 (b). The top portion 70A of the housing 50A has a circular shape covering the upper end of the cylindrical portion 52 . Inside the casing 50A, a tapered shaft portion 73 whose diameter gradually decreases from the top portion 70A to the bottom portion 51 is provided. The through hole 63 penetrated by the tapered shaft portion 73 is formed in the float 60A, and the through hole 63 has a shape along the tapered shaft portion 73 .

[0075] Hereinafter, the action and effect of the present invention when the engine is dumped will be described in comparison with the prior art.

[0076] re...

Embodiment 3

[0086] refer to Figure 7 . The upper surface of the case 50B is constituted by a case-side hemispherical portion 70B having a substantially hemispherical shape and having a passage hole 72a at the end for allowing the oil Oi to enter and exit. The upper portion of the float 60B includes a float-side hemispherical portion 62B inclined so as to be movable along the case-side hemispherical portion 70B.

[0087] The predetermined effects of the present invention can also be obtained by using the oil level detection device 40B. Furthermore, the oil level detection device 40B can also obtain the following predetermined effects.

[0088] With the casing side truncated cone portion 71 of Embodiment 1 (refer to Figure 4 The case side hemispherical portion 70B bulges outward from the case 50B based on the inclined line L of (b)), so the float side hemispherical portion 62B is less likely to contact the case side hemispherical portion 70B. Therefore, when the engine 10 falls over, ...

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Abstract

The invention provides a float-type oil level detection device. When an engine inclines, signals can be reliably sent. A top part (70) of a shell body comprises a shell body side inclined face part (71) of which the diameter increases in a downward direction, and an upper part of a float (60) comprises a float side inclined face part (62) which inclines in such a way that the float side inclined face part can move up and down along the shell body side inclined face part (71). When the engine inclines, the float (60) can move toward the bottom part (51) of the shell body (50) while the float side inclined face part (62) is abutted against the shell body side inclined face part (71) by means of buoyancy force received from gravity or oil.

Description

technical field [0001] The present invention relates to a float type oil level detection device using a float that can move up and down following the oil surface of the oil. Background technique [0002] Some engines store oil in the lower part inside the engine for purposes such as lubricating the engine. In order to judge whether a specified amount of oil has been stored, an oil level detection device is installed in the engine. For example, there is a float-type oil level detection device disclosed in Patent Document 1 as a technology related to a detection device for detecting the oil level of oil in a work machine engine. [0003] The float type oil level detection device disclosed in Patent Document 1 is composed of the following parts: a housing that is installed in the oil pan of the engine and allows the oil filled in the oil pan to come in and out; The float moves up and down due to the oil level of the oil; the fixed contact provided on the bottom surface of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01M11/12
CPCF01M11/12
Inventor 桥爪崇金山久伦
Owner HONDA MOTOR CO LTD
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