Abstract: A check valve aspirator is provided including a venturi pipe having a converging section with a converging inlet and a converging outlet, and a diverging section with a diverging inlet and a diverging outlet. The converging outlet is in fluid communication with the diverging inlet. An outlet channel is in fluid communication with the venturi pipe and has an outlet port. A ratio of a diameter of the converging section outlet to a diameter of the outlet port is less than 0.4.
Type:
Grant
Filed:
February 20, 2013
Date of Patent:
July 2, 2019
Assignee:
Nyloncraft Incorporated
Inventors:
Matthew Burnham, Andy Smith, Amy Backhus
Abstract: A vacuum assist system attaches to an intake line and an intake manifold of an internal combustion engine having a throttle. The vacuum assist system includes a venturi valve, a reservoir, and a proportionally controlled valve. The proportionally controlled valve is movable between an open position and a closed position. The proportionally controlled valve moved to the open position when the throttle is in the partially open position such that air is flows from the inlet to the intake manifold, from the inlet to the venturi valve, from the venturi valve to the intake manifold, and from the reservoir to the venturi valve. The proportionally controlled valve moves to the closed position when the throttle is in the almost-closed position such that air flows from the inlet to the intake manifold via the intake line and from the reservoir to the intake manifold to reduce the pressure within the reservoir.
Type:
Application
Filed:
October 29, 2013
Publication date:
April 30, 2015
Applicants:
NYLONCRAFT INCORPORATED, GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventors:
John Norman Stockbridge, Matthew W. Burnham
Abstract: The embodiments disclosed herein provide a check valve aspirator including a venturi pipe having a converging section with a converging inlet and a converging outlet, and a diverging section with a diverging inlet and a diverging outlet. The converging outlet is in fluid communication with the diverging inlet. An outlet channel is in fluid communication with the venturi pipe and has an outlet port. A ratio of a diameter of the converging section outlet to a diameter of the outlet port is less than 0.4.
Type:
Application
Filed:
February 20, 2013
Publication date:
August 22, 2013
Applicant:
Nyloncraft Incorporated
Inventors:
Matthew Burnham, Andy Smith, Amy Backhus