Supercharge Your Innovation With Domain-Expert AI Agents!

valve timing controller

A controller and valve timing technology, applied in valve devices, machines/engines, engine components, etc., can solve problems such as unrestricted oil pressure and leakage

Inactive Publication Date: 2016-12-28
DENSO CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, oil pressure leakage may not be adequately restricted between the advance chamber and the retard chamber

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • valve timing controller
  • valve timing controller
  • valve timing controller

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0022] will refer to Figure 1 to Figure 6 The first embodiment is described. Valve timing controller 1 for Figure 5 In the drive train of internal combustion engine 10 is shown. In the transmission system, a gear 12 is fixed to a crankshaft 11 (drive shaft) of an engine 10, and gears 15 and 16 are fixed to two camshafts 13 and 14 (driven shafts), respectively. A chain 17 is linked with gears 12 , 15 , 16 and torque is transmitted from crankshaft 11 to camshafts 13 and 14 . Camshaft 13 drives discharge valve 18 and camshaft 14 drives suction valve 19 . In the valve timing controller 1 , the gear 16 is connected to the chain 17 , and the vane rotor 30 is connected to the camshaft 14 . The valve timing controller 1 controls the opening and closing timing of the suction valve 19 by rotating the crankshaft 11 and the camshaft 14 with a predetermined phase difference. exist Figure 5 , the valve timing controller 1 rotates clockwise in the direction of rotation.

[0023] Su...

no. 2 example

[0058] will refer to Figure 7 A second embodiment is described. In each of the following embodiments, some parts and components that are substantially the same as those in the first embodiment are denoted by the same reference numerals, and the same description will not be repeated.

[0059] Figure 7 The front plate 21 of the valve timing controller is shown. exist Figure 7 In , alternate long and short dash lines show the position of the sealing plate 40 .

[0060] In the second embodiment, the front plate 21 has oil pressure grooves 511-514 at positions corresponding to the seal members 42-45 of the seal plate 40, respectively. The oil pressure grooves 511 - 514 respectively overlap with a part of the openings 46 - 49 of the sealing plate 40 , and extend in an arc shape in the circumferential direction within a range corresponding to the sealing members 42 - 45 . The oil pressure grooves 511-514 may extend in a straight shape instead of an arc.

[0061] In the secon...

no. 3 example

[0063] will refer to Figure 8 A third embodiment is described. Figure 8 The front plate 21 of the valve timing controller is shown. exist Figure 8 In , alternate long and short dash lines show the position of the sealing plate 40 .

[0064] In the third embodiment, the front plate 21 has oil pressure grooves 521-524 at positions corresponding to the seal members 42-45 of the seal plate 40, respectively. The oil pressure grooves 521 - 524 are defined in almost the same range as the seal members 42 - 45 of the seal plate 40 , or the oil pressure grooves 521 - 524 are defined to cover all the seal members 42 - 45 of the seal plate 40 .

[0065] In the third embodiment, the pressure drop of the back pressure chamber 90 can be reduced as a whole. Therefore, all the back pressure chambers 90 can be quickly filled with oil pressure from the openings 46 - 49 of the sealing plate 40 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a valve timing controller. The valve timing controller (1) comprises a casing (20), a vane rotor (30) and a sealing plate (40). The housing has a front plate (21) and a rear plate (22). The sealing plate includes a base (41) having a flat plate shape interposed between the housing and the vane rotor, and a sealing member (42‑45) protruding from the base toward the vane rotor to slidably contact the vane rotor. The seal plate is capable of controlling leakage of oil defined between the advance chamber and the retard chamber in the housing. The front plate or the rear plate in contact with the base of the sealing plate has oil pressure grooves (50, 53, 511-514, 521-524) at positions corresponding to the sealing parts.

Description

technical field [0001] The present invention relates to a valve timing controller which controls the valve opening and closing timing of a suction valve or a discharge valve of an internal combustion engine. Background technique [0002] JP-2011-99411A (corresponding to US 2011 / 0107991) describes a valve timing controller that controls the opening and closing times (open and off timing). The valve timing controller has a housing that rotates with the crankshaft and a vane rotor fixed to the camshaft. The vane rotor is arranged inside the casing so as to be relatively rotatable. The relative rotational phase between the housing and the vane rotor is changed or maintained according to the pressure of oil supplied to the advance and retard chambers defined in the housing. [0003] The valve timing controller has a seal plate in the gap between the housing and the vane rotor. The sealing plate has a flat base in contact with the housing and a sealing member (corresponding to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2001/34423
Inventor 松永祐树
Owner DENSO CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com