Device for variable adjustment of timing of gas exchange valves of internal combustion engine

A technology for internal combustion engines and ventilation valves, which is applied in valve devices, mechanical equipment, engine components, etc., can solve problems such as increasing the complexity of cylinder heads and manufacturing costs

Inactive Publication Date: 2011-06-29
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of this embodiment is that, for each camshaft bearing, complex lubricant supply lines have to be constructed inside the cylinder head in order to supply the lubricant to the camshaft bearings
This significantly increases the complexity and manufacturing cost of the cylinder head

Method used

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  • Device for variable adjustment of timing of gas exchange valves of internal combustion engine
  • Device for variable adjustment of timing of gas exchange valves of internal combustion engine
  • Device for variable adjustment of timing of gas exchange valves of internal combustion engine

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Embodiment Construction

[0028] exist figure 1Shown is an internal combustion engine 1 , wherein a piston 3 on a crankshaft 2 is represented in a cylinder 4 . In the embodiment shown, the crankshaft 2 is connected to the intake camshaft 6 or the exhaust camshaft 7 via a traction mechanism transmission 5 in each case, wherein a first and a second device 11 can be responsible for the crankshaft 2 and the camshaft 6, 7 relative rotation between. The cams 8 of the camshafts 6 , 7 actuate one or more intake gas exchange valves 9 or one or more exhaust gas exchange valves 10 . It can likewise be provided that only one camshaft 6 , 7 is equipped with the device 11 or that only one camshaft 6 , 7 is provided with the device 11 .

[0029] figure 2 and image 3 A first embodiment of the device 11 according to the invention is shown in longitudinal section and cross section. The device 11 has a phase adjustment device 12 , camshafts 6 , 7 and a pressure medium distributor 13 .

[0030] The phase adjustmen...

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Abstract

The invention relates to a device (11) for the variable adjustment of the timing of gas exchange valves (9, 10) of an internal combustion engine (1), comprising a hydraulic phase shifting device (12), a camshaft (6, 7) and a pressurizing means distributor (13), wherein the phase shift device (12) can be caused to come into drive linkage with a crankshaft (2) and is rigidly connected to the camshaft (6, 7), wherein a phase position of the camshaft (6, 7) relative to the crankshaft (2) can be variably adjusted by way of the phase shift device (12), wherein the interior of the camshaft (6, 7) comprises a cavity (49) that communicates with one or more camshaft bearings (50) designed to be separate from a rotating pressurizing means conveyor (39), wherein the pressurizing means distributor (13) is disposed in a receiving area (37) of the camshaft (6, 7), wherein the camshaft (6, 7); comprises an opening (38) in the area of the pressurizing means distributor (13), said opening communicatingon the one hand with the interior of the camshaft (6, 7) and on the other hand with the rotating pressurizing means conveyor (39), wherein a pressurizing means path (40) is designed inside the camshaft (6, 7), said path communicating on the one hand with the opening (38) and on the other hand with the hydraulic phase shift device (12).

Description

technical field [0001] The invention relates to a device for variably adjusting the gas distribution timing of a gas exchange valve of an internal combustion engine, comprising a hydraulic phase adjustment device, a camshaft and a pressure medium distributor, wherein the phase adjustment device can be drive-connected to a crankshaft, and is connected in a rotationally fixed manner to the camshaft, wherein the phase of the camshaft relative to the crankshaft can be variably adjusted by means of a phase adjustment device, wherein the interior of the camshaft has a cavity which is connected to one or more camshaft bearings In connection therewith, the one or more camshaft bearings are configured separately from the pressure medium rotary transmitter, wherein the pressure medium distributor is arranged in the receiving area of ​​the camshaft, wherein the camshaft has a An opening which communicates with the interior of the camshaft on the one hand and with the pressure medium rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/344
CPCF01L2001/34433F01L2001/0475F01L2001/34426F01L1/3442
Inventor 鲍里斯·普茨阿里·巴伊拉克达尔
Owner SCHAEFFLER TECH AG & CO KG
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