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Turbo purge module for tubocharged engines

A turbocharger, vehicle technology used in the field of steam management systems to solve problems such as pressure or vacuum leaks

Inactive Publication Date: 2014-08-27
CONTINENTAL AUTOMOTIVE SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Connections to various parts of the hose may be pressure or vacuum leak points

Method used

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  • Turbo purge module for tubocharged engines
  • Turbo purge module for tubocharged engines
  • Turbo purge module for tubocharged engines

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] refer to figure 1 , shows a schematic diagram of an evaporative vapor management system indicated generally at 10' having a turbo flush module indicated generally at 26 according to an embodiment. Such as Figure 4 As shown in , the turbine flushing module 26 integrates the venturi nozzle 14 ′, the check valves 22 ′ and 24 ′ and the flushing valve 18 ′ into a single component. Thus, flush valve 18' is directly coupled (without any flexible hose) to check valves 22' and 24', and the venturi nozzle is directly coupled (without any flexible hose) to check valve 24'. The canister 16 is constructed and arranged for connection with a fuel tank to receive hydrocarbon vapors therefrom in a conventional manner.

[0016] When a conventional turbocharger 12 is operating, high-pressure air from the outlet 13 of the turbocharger 12 is directed through the hose 15 to the inlet 27 of the venturi nozzle 14' to induce a vacuum that draws hydrocarbon vapors from the barrel 18'. Throug...

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PUM

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Abstract

A turbo purge module (26) includes a purge valve (18') connected between a vapor collection canister (16) and an intake manifold (22). A venturi nozzle (14') receives pressurized air from the turbocharger (12), when the turbocharger is operating, to create a vacuum to draw vapors from the canister (16) through the purge valve (18') to an inlet of the turbocharger and the intake manifold to be purged in the engine. A first check valve (22') prevents pressure from the intake manifold from reaching the canister when the turbocharger is operating. A second check valve (24') prevents vacuum pressure from the intake manifold from communicating with the venturi nozzle when the turbocharger is at idle, with vapor from the canister being drawn through the purge valve (18') and the intake manifold to be purged in the engine. The purge valve (18'), venturi nozzle (14'), first check valve (22'), and second check valve (24') are integrated into a single component.

Description

[0001] This application claims the benefit of US Provisional Application No. 61 / 577,445, filed December 19, 2011. technical field [0002] The present invention relates to vapor management systems for vehicles, and more particularly to a dual operation turbo flush module that generates vacuum when a turbocharger is in use and uses manifold vacuum when the turbocharger is not in use. Background technique [0003] refer to figure 1 , is shown generally at 10 a conventional evaporative vapor management system for a turbocharged vehicle. When the turbocharger 12 is operating, high pressure air (arrow A) from the turbocharger 12 is directed through the venturi nozzle 14 to induce a vacuum (arrow B) that draws hydrocarbons from the canister 18 through the electronically operated A flushing valve 18, to the inlet of the turbocharger 12, passes through the throttle valve 20 and the intake manifold 22 for flushing at the engine (not shown). Canister 18 and a fuel tank (not shown) c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M25/08B60K15/035
CPCF04F5/24F02B37/164Y02T10/144F04F5/00F02M25/0836F02M27/00Y02T10/12
Inventor B.G.伍德斯D.W.鲍尔斯登
Owner CONTINENTAL AUTOMOTIVE SYST INC