Boost pressure control system for turbocharged internal combustion engines
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02B-033/44
F16K-031/14
F16K-015/06
F16K-031/122
F02B-037/16
F02B-039/00
F16K-017/06
출원번호
US-0385967
(2012-03-19)
등록번호
US-9353876
(2016-05-31)
발명자
/ 주소
Woollenweber, William E.
Delgado, Joseph S.
출원인 / 주소
Woollenweber, William E.
대리인 / 주소
Harms, Donn K.
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
A variable boost pressure control system for turbocharged internal engine systems comprising an adjustable charge air vent valve connectable with the charge air input to an internal combustion engine to provide selection and adjustment of the charge air pressure to the internal combustion engine, ei
A variable boost pressure control system for turbocharged internal engine systems comprising an adjustable charge air vent valve connectable with the charge air input to an internal combustion engine to provide selection and adjustment of the charge air pressure to the internal combustion engine, either at the site of the charge air vent valve or at a location remote from the charge air vent valve and to provide, if desirable, a flow of cool charge air to a turbocharger cooling jacket.
대표청구항▼
1. A valve for controlling the charge air pressure in an internal combustion engine system including a turbocharger, comprising: a valve body including a central cavity and having a first opening at one end with a valve seat, said first opening adapted for a sealed engagement with a charge air duct
1. A valve for controlling the charge air pressure in an internal combustion engine system including a turbocharger, comprising: a valve body including a central cavity and having a first opening at one end with a valve seat, said first opening adapted for a sealed engagement with a charge air duct communicating between the turbocharger and the internal combustion engine,said central cavity having a cylindrical portion at an end opposite the first opening,said central cavity further having a second opening from the central cavity communicating to an exterior of the valve body,a valve carried within the central cavity of the valve body,said valve having a valve closure for engaging the valve seat and closing the first opening and controlling a flow of charge air through said first opening communicated from said charge air duct in a said sealed engagement therewith,said valve further having a valve stem projecting from a first end engaged with the valve closure and extending into the central cavity to a distal end,a compression spring positioned on said valve stem and extending from a first end contacting a spring retainer engaged upon said valve stem adjacent said distal end, to a second end communicating against the valve closure,said central cavity further including a piston having a closed end, said piston carried in said cylindrical portion of the central cavity, said piston having a surface opposite said closed end seated against the spring retainer,said valve body further adjustably carrying a screw, said screw having an end extending into the cylindrical portion of the central cavity and engaging the closed end of the piston,said screw adjustable for moving the piston and thereby concurrent moving said spring retainer on the valve stem, in the direction of the valve closure, to thereby impart compression to the spring, andsaid compression applying a force from said spring to said valve closure in a direction of said valve seat, and,said force determining a pressure the charge air against the valve closure must exceed to move the valve closure from the valve seat and vent charge air from said charge air duct through the first and second openings of the valve body whereby an adjustment of said screw adjusts the said force applied to said valve closure which adjusts said pressure level of said charge air within said charge air duct. 2. The valve of claim 1 further comprising said second opening adapted for a connection to a duct in sealed communication with a cooling jacket of the turbocharger, whereby said duct carries the escaping charge air to said cooling jacket of the turbocharger to cool the turbocharger. 3. An apparatus for adjustably controlling the boost pressure of cylinder charge air from a turbocharger to an internal combustion engine, comprising: a valve body forming a closed chamber with a charge air inlet adapted for a sealed engagement with a charge air duct communicating charge air under pressure between the turbocharger and the internal combustion engine,said valve body having a charge air outlet of said valve body communicating with said closed chamber and defining an exit pathway from said valve body,said valve body carrying a valve seat positioned between the charge air inlet and the charge air outlet, said valve seat formed around the charge air inleta spring-loaded valve closure for the valve seat, said spring loaded closure biased by a spring loading force of a spring engaged around a valve stem, said spring extending between a spring retainer and said valve closure,said valve closure actuatable to separate from said valve seat by a force of said charge air pressure acting thereon exceeding said spring-loading force,said spring-loading force being adjustable to vary said charge air pressure within said charge air duct to a charge air pressure exerting said force acting on said valve closure, which is equal to or lower than said spring loading force acting on the valve closure, andsaid movement of said valve closure from said valve seat providing a pathway through said inlet for a communication of said charge from the charge air duct and through said valve body to an exit at said charge air outlet,wherein the valve body forms a cylinder portion with a piston movably carried within the cylinder portion of the valve body and connected with the spring,said valve body further forming an opening into the cylinder portion for the admission of a pressurized air into the cylinder portion;said pressurized air communicated into said cylinder portion imparting a secondary force to act on and move the piston toward said retainer and thereby impose a said secondary force on the spring, said secondary force increasing said spring-loading force communicated to said valve closure and imparting a corresponding increase in the force of pressure of said charge air communicated from a engaged charge air duct which is required to move the valve closure from the valve seat. 4. The apparatus of claim 3 wherein said charge air outlet is adapted to engage a duct for the charge air escaping the valve body, connected between said charge air outlet of said valve body to a cooling air pathway of the turbocharger to thereby communicate said charge air to said cooling air pathway for cooling the internal parts of the turbocharger. 5. The apparatus of claim 3 wherein the opening into the cylinder portion of the valve body is connected to a duct leading to an outlet of a remotely located adjustable modulating valve, said adjustable modulating valve having an inlet in a communication with said charge air under said pressure from the turbocharger, an adjustment of the modulating valve permitting an increase in the pressure of said pressurized air and corresponding increase in said secondary force applied to the piston in the cylinder portion of the valve body and a corresponding in the force exerted by pressure of said charge air required to move the valve closure from engagement with the valve seat. 6. A valve for controlling the charge air pressure in an internal combustion engine system including a turbocharger, comprising: a valve body including a central cavity and having a first opening at a first end having a valve seat surrounding said first opening within said central cavity;said first end positioned in a sealed engagement of said first opening to a charge air duct which communicates charge air between the turbocharger and the internal combustion engine;said central cavity having a cylindrical portion at a second end opposite the first opening;a second opening communicating between said central cavity and an exterior of said valve body;a valve carried within the central cavity of the valve body;said valve having a valve closure for engaging the valve seat and closing the first opening and thereby controlling a flow of charge air from said charge air duct through said first opening,a compression spring engaged around a valve stem extending from said valve closure and extending between a spring retainer and the valve closure;said compression spring imparting a force to said valve closure to maintain it in a contact with said valve seat;said central cavity further including a piston having a closed end, said piston carried in said cylindrical portion of the central cavity, said piston having a surface opposite said closed end, said surface seated against the spring retainer;an adjusting component for moving the piston and said spring retainer in a direction toward the valve closure, to thereby compress the spring and thereby communicate an increase of said force communicated from said spring to said valve closure in a direction of said valve seat; andwhereby, said increase in said force communicated from said spring to said valve closure, increases a force of said pressure of the charge air communicated to the valve closure from said charge air duct which is required to move the valve closure from the valve seat, and thereby vent said charge air from said charge air duct through the first opening to an exit through the second opening of the valve body, to said exterior of said valve. 7. The valve of claim 6 wherein said adjusting component comprises: said valve body further adjustably carrying a screw with one end extending into the cylindrical portion of the central cavity and engaging the closed end of the piston; androtation of said screw in one direction moving said piston and imparting a corresponding movement of said spring retainer in said direction toward the valve closure. 8. The valve of claim 7 further comprising: said second opening adapted for sealed engagement to a duct connected to a cooling jacket of said turbocharger; andsaid duct in said engagement with said second opening communicating said charge air vented from said charge air duct which exits said second opening, to said cooling jacket. 9. The valve of claim 6 wherein said adjusting component comprises: an opening into the cylinder portion of the valve body;said opening connected to a duct leading to an outlet of a remotely located adjustable modulating valve;said adjustable modulating valve having an inlet in a communication with said charge air under said pressure from the turbocharger;an adjustment of the modulating valve communicating said charge air under said pressure against the piston in the cylinder portion of the valve body thereby moving said piston and spring retainer in a direction toward the valve closure; andsaid movement of said piston resulting in a corresponding increase in said force of said spring against the valve closure and a corresponding increase in the force of said pressure of said charge air required to move the valve closure from engagement with the valve seat. 10. The valve of claim 9 further comprising: said second opening adapted for sealed engagement to a duct connected to a cooling jacket of said turbocharger; andsaid duct in said engagement with said second opening communicating said charge air vented from said charge air duct which exits said second opening, to said cooling jacket. 11. The valve of claim 6 further comprising: said second opening adapted for sealed engagement to a duct connected to a cooling jacket of said turbocharger; andsaid duct in said engagement with said second opening communicating said charge air vented from said charge air duct which exits said second opening, to said cooling jacket.
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이 특허에 인용된 특허 (7)
Bunker Byron J. ; Ghuman Amarjit S. ; Radovanovic Rod ; Janssen John M., Dual-pressure hydraulic valve-actuation system.
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