Charge motion control valve seal and method of assembly thereof

A technology of seals and baffle valves, which is applied in the direction of engine control, engine components, charging systems, etc., and can solve the problems of unable to solve the problem of sealing the expected flow path and unable to solve the airflow

Active Publication Date: 2020-11-17
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This seal does not solve the problem of sealing the intended flow path when the valve is open
Also, it will not solve the problem of airflow behind the flapper valve in any valve position

Method used

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  • Charge motion control valve seal and method of assembly thereof
  • Charge motion control valve seal and method of assembly thereof
  • Charge motion control valve seal and method of assembly thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0016] As will be appreciated by persons of ordinary skill in the art, various features of an embodiment shown and described with reference to any one of the figures may be combined with features shown in one or more of the other figures to obtain a feature not shown and described in detail. other examples. The combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of this disclosure may be desired for a particular application or implementation. One of ordinary skill in the art may recognize similar applications or implementations, whether or not described or shown in detail.

[0017] Intake manifold 40 in figure 1 shown in . The upper manifold section 42 has a top shell 52 connected to an upper middle shell 54 . In addition, the top shell 52 is integrally formed with the upper and middle shells 54 . The lower manifold 44 has a lower midshell ...

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PUM

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Abstract

In an intake manifold with a charge motion control valve (CMCV), there is a gap between the flapper valve and the wall of the intake runner. Although the gap is kept as small as possible, it cannot be eliminated due to the manufacturing tolerances and temperature variations that the intake manifold is subjected to to prevent binding of the flapper valves. Some airflow detours through the gap, resulting in undesirable hydrodynamics. Disclosed herein is a seal positioned to rest lightly on the flapper valve close to the gap such that the gap is substantially sealed when moderate force is applied on the CMCV such that actuation torque is minimally affected. The seal has a press-in-place portion inserted into a pocket formed in the manifold to hold it in place, and a lip portion extending from the press-in-place portion to block the gap.

Description

technical field [0001] The present disclosure relates to charge motion control in the intake duct of an internal combustion engine. Background technique [0002] More than a quarter of a century ago, spark ignition engines tended to have only one intake valve. To improve intake and exhaust performance, and thus obtain peak power from an engine of a given displacement, two intake valves have become common in engine production. Although two intake valves have been found to provide less mixing motion at low torque conditions than a single intake valve to the detriment of idle quality. If the cross-sectional area of ​​the air passage is reduced under low torque conditions, the velocity of the airflow through this reduced area section is increased. A valve placed in a conduit in the intake manifold may remain open under high torque operating conditions, but move to a blocked position under low torque operating conditions. In addition, the shape of the valve is properly designe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M35/10F02M35/104F02D9/10
CPCF02D9/1045F02D9/107F02D9/1095F02M35/10255F02M35/10354F02M35/104F02M35/10262F02M35/10347Y02T10/12
Inventor 塞缪尔·杰弗里·汤姆林森克里斯多夫·斯诺克里斯多夫·威廉·纽曼
Owner FORD GLOBAL TECH LLC
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