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Valve driving device and supercharger having the valve driving device

A technology of valve drive and supercharger, which is applied in the direction of mechanical equipment, combustion engine, machine/engine, etc., and can solve problems such as difficult to set accurately

Inactive Publication Date: 2018-06-26
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size of the gap between the first member and the second member may vary depending on the constituent members, therefore, it may be difficult to accurately set the above range

Method used

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  • Valve driving device and supercharger having the valve driving device
  • Valve driving device and supercharger having the valve driving device
  • Valve driving device and supercharger having the valve driving device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0049] Figure 1A 7 to 7 show a valve driving device according to a first embodiment of the present invention.

[0050] like Figure 1A As shown, the valve driving apparatus 1 is mounted to, for example, a supercharger 3 that supercharges intake air entering an internal combustion engine (hereinafter referred to as an engine) 2 of a vehicle. The supercharger 3 supercharges the intake air entering the engine 2 for the purpose of increasing the output of the engine 2 , increasing the torque in the actual rotational speed range of the engine 2 , and improving fuel consumption.

[0051] An intake pipe 4 is connected to the engine 2 . An intake duct 5 is provided on the side of the intake duct 4 opposite to the engine 2 . An intake opening (not shown) open to the atmosphere is formed at an end of the intake pipe 5 opposite to the intake pipe 4 . The intake passage 6 is formed inside the intake pipe 4 and inside the intake pipe 5 . The intake passage 6 guides air drawn from the i...

no. 2 example

[0109] Figure 9 A valve driving device according to a second embodiment of the present invention is shown. In the second embodiment, the structures of the first member, the second member and the urging means are different from those of the first embodiment.

[0110] In the second embodiment, the first contact part 411 configured in a ring form is formed along the outer peripheral edge portion of the other side surface of the main body 41 of the first member 40 . In addition, a first engaging part 412 is formed in a central portion of the other side surface of the main body 41 .

[0111]The second member 50 does not include the extension portion 53 discussed in the first embodiment. The second contact part 521 is formed in an end portion of the tubular portion 52 of the second member 50 opposite to the main body 51 . The second contact part 521 may contact the first contact part 411 . The second engagement part 513 is formed in a central portion of one side surface of the ...

no. 3 example

[0116] Figure 10 A valve driving device according to a third embodiment of the present invention is shown. In the third embodiment, the structures of the first member, the second member and the urging means are different from those in the first embodiment.

[0117] In the third embodiment, the first member 40 further includes a main body 42 . The main body 42 is formed to protrude radially outward from an axially middle portion of the shaft 35 . The first contact part 421 is formed in the main body 41 side of the main body 42 . Here, the main body 41 serves as the upper member of the present invention, and the main body 42 serves as the lower member of the present invention.

[0118] The second member 50 includes a main body 54 . The main body 54 is configured in a generally cylindrical tubular form. The main body 54 is located between the main body 41 and the main body 42 such that the main body 54 is axially reciprocable (ie, axially reciprocable) in a state where the ...

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PUM

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Abstract

In a valve drive apparatus, which drives a first valve and a second valve of a supercharger, a first rod is rotatably connected to a first valve lever shaft at one end part thereof to drive the first valve and is connected to a shaft at the other end part thereof, and a second rod is rotatably connected to a second valve lever shaft at one end part thereof to drive the second valve and is connected to a second member at the other end part thereof. A spring is placed between a first engaging part of the first member and a second engaging part of the second member and urges the first member and the second member to urge a first contact part of the first member and a second contact part of the second member toward each other.

Description

technical field [0001] The present invention relates to a valve driving device and a supercharger having the valve driving device. Background technique [0002] Previously, valve actuation devices for actuating two valves of a supercharger were known. For example, JP2010-281271A discloses a valve driving apparatus having a single actuator for driving two valves (a first valve and a second valve) of a two-stage supercharger. Such a valve driving device includes a link mechanism arranged between an actuator and a valve. The driving force of the actuator is transmitted to the valve through the linkage mechanism. [0003] In the valve driving device of JP2010-281271A, the second valve is urged in its closing direction by a spring, and thus the second valve is kept in the valve closed state until the first valve is opened to a predetermined opening degree or more. When the first valve is opened to a predetermined opening degree or more, the second valve is opened synchronously...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/18F02B37/013
CPCF02B37/001F02B37/007F02B37/025F02B37/186Y02T10/12Y10T74/18928F04D27/0215
Inventor 山口雅史柳田悦豪山中哲尔
Owner DENSO CORP