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Apparatus for variably adjusting the control times of gas exchange valves in an internal combustion engine

A technology of gas distribution phase and internal combustion engine, which is applied in the direction of valve device, accumulator device, fluid pressure actuating device, etc., which can solve the problems of falling and inability to adjust the speed, so as to reduce the quality, increase the adjustment speed, and quickly adjust Effect

Inactive Publication Date: 2010-12-15
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can result in the adjustment process not being able to be carried out or the adjustment speed being significantly reduced

Method used

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  • Apparatus for variably adjusting the control times of gas exchange valves in an internal combustion engine
  • Apparatus for variably adjusting the control times of gas exchange valves in an internal combustion engine
  • Apparatus for variably adjusting the control times of gas exchange valves in an internal combustion engine

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Experimental program
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Effect test

Embodiment Construction

[0027] figure 1 An internal combustion engine 1 is sketched in , wherein a piston 3 mounted on a crankshaft 2 is shown in a cylinder 4 . In the embodiment shown, the crankshaft 2 is connected to the inlet camshaft 6 or the outlet camshaft 7 via a traction gear transmission 5, wherein the first device and the second device 10 can be responsible for connecting the crankshaft 2 with the camshafts 6, 7. relative rotation between them. The device 10 comprises a hydraulic adjustment device 10 a, b and a pressure medium supply device 37 in each case. The cams 8 of the camshafts 6, 7 actuate one or more inlet gas exchange valves 9a or one or more outlet gas exchange valves 9b. It can likewise be provided that only one of the camshafts 6 , 7 is equipped with the device 10 or only one camshaft 6 , 7 equipped with the device 10 is provided.

[0028] image 3 A first embodiment of the device 10 according to the invention is shown with the adjusting device 10 a, b, the pressure medium ...

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PUM

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Abstract

The invention relates to an apparatus (10) for variably adjusting the control times of gas exchange valves (9a, b) in an internal combustion engine (1). Said apparatus (10) comprises a driving element (22), an output element (23), at least one pressure chamber (35, 36), a pressurized medium supply device (37), and at least one pressure accumulator (43). The pressurized medium supply device (37) allows pressurized medium to be fed to or discharged from the at least one pressure chamber (35, 36). A phase angle of the output element (23) relative to the input element (22) can be changed by feeding or discharging pressurized medium to or from the pressure chamber (35, 36). The pressure accumulator (43) encompasses a movable element (45) that has a first pressure surface (47) which partially delimits a storage space (49). The storage space (49) is or can be connected to the pressurized medium supply device (37). An energy store applies a force to the movable element (45) in the direction of an initial position. The movable element (45) can be moved against the force of the energy store (46) by pressurizing the storage space (49).

Description

technical field [0001] The invention relates to a device for variable adjustment of the timing of gas exchange valves of an internal combustion engine, the device having a drive element, a driven element, at least one pressure chamber, a pressure medium supply and at least one pressure accumulator, wherein, At least one pressure chamber can be supplied with pressure medium or discharged from the pressure medium by means of the pressure medium supply device, wherein by supplying pressure medium to the pressure chamber or discharging pressure medium from the pressure chamber, the output can be changed relative to the transmission. phasing of parts, wherein the pressure accumulator has a movable element with a first pressure surface partially delimiting a storage chamber, wherein the storage chamber is connected or connectable to a pressure medium supply, wherein the accumulator faces The orientation of the starting position exerts a force on the movable element, and wherein, by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/34F01L1/344
CPCF01L1/3442F01L1/34F15B1/024F01L13/0015F01L2001/34446F01L1/267F15B15/12F01L13/0005
Inventor 约亨·奥克特安德烈亚斯·亨普夫林
Owner SCHAEFFLER TECH AG & CO KG
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