Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Valve timing control apparatus

A control device, valve timing technology, applied in the direction of valve devices, engine components, machines/engines, etc.

Active Publication Date: 2014-03-26
AISIN SEIKI KK
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for example, in the case where undesired oil pressure is applied to the accumulator due to pulsation so that the hydraulic oil accumulates in the accumulator at a high pressure, the pressure of the hydraulic oil in the accumulator may be greater than that applied through the solenoid. return valve pressure

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 control apparatus
  • Valve timing control apparatus
  • Valve timing control apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] will refer to figure 1 The valve timing control device 1 according to the first embodiment is described through FIG. 6 .

[0029] Such as figure 1 and figure 2 As shown, the valve timing control device 1 includes an outer rotor 3 as a driving-side rotating member and an inner rotor 5 as a driven-side rotating member. The outer rotor 3 rotates synchronously with a crankshaft 10 of the engine E as an internal combustion engine. The inner rotor 5 is provided coaxially with the outer rotor 3 to rotate synchronously with a camshaft 8 for opening and closing valves of the engine E. As shown in FIG.

[0030] The inner rotor 5 is integrally assembled on the end of a camshaft 8 serving as a rotating shaft of a cam for controlling opening and closing of an intake valve or an exhaust valve of the engine E. The inner rotor 5 coaxially includes a recess 14 recessed from the side facing the front plate 4 . A fixing hole 12 is formed at the bottom surface of the recess 14 to pen...

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

A valve timing control apparatus (1) includes a driving-side rotation member (3), a driven-side rotation member (5), a fluid chamber (6), an advanced angle chamber (6a), a retarded angle chamber (6b), a fluid control valve portion (2) controlling supply and discharge of fluid relative to each of the advanced angle chamber and the retarded angle chamber, an accumulator (110) accumulating a portion of fluid supplied to the fluid control valve portion from a pump (P) at a fluid storage portion (115) during an operation of an internal combustion engine (E) and supplying fluid accumulated at the fluid storage portion to the fluid control valve portion at a start of the internal combustion engine, and a supply flow passage (47, 48) connecting the pump, the fluid control valve portion, and the accumulator in series. The accumulator includes a relief control valve portion (130) configured to maintain a pressure of fluid accumulated at the fluid storage portion equal to or smaller than a predetermined value.

Description

technical field [0001] The present invention generally relates to a valve timing control device for controlling a relative rotational phase of a driven side rotating member with respect to a driving side rotating member rotating synchronously with a crankshaft of an internal combustion engine. Background technique [0002] A valve timing control device configured to change the opening and closing timing of each of an intake valve and an exhaust valve according to operating conditions of an internal combustion engine (hereinafter, referred to as an engine) has been developed. For example, such a valve timing control device includes a structure in which the relative rotational phase of the driven side rotating member with respect to the driving side rotating member rotated by the operation of the engine is changed, thereby changing the The opening and closing timing of each valve is opened and closed by the rotation of the intake valve and exhaust valve. [0003] For example,...

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 Applications(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2001/34423F01L2001/34446
Inventor 向出仁树铃木重光稻摩直人
Owner AISIN SEIKI KK
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com