Pressure relief system for a check valve

Patent · Tue May 28 04:00:00 EDT 1991

OSTI ID:5100126

Davis, R S; Lee, J R; MacFarlane, G R

This patent describes a pressure relief system for an engine having an intake passage leading to a cylinder, a check valve in the intake passage to allow fluid flow toward the cylinder and obstruct fluid back-flow in the reverse direction, and a bypass port located on the intake passage so that the bypass port communicates with a downstream portion defined by the portion of the intake passage between the cylinder and check valve. It comprises: a pressure relief passage connected between the bypass port and a reservoir enabling communication between the reservoir and downstream portion, and a preloaded check valve connected to the pressure relief passage so that any pressure difference across the preloaded check valve is approximately equal to the difference between the pressure in the downstream portion and reservoir, the pressure difference across the preloaded check valve constituting the check valve pressure difference, the preloaded check valve comprising a flap and a torsion member.

• Assignee: General Motors Co., Detroit, MI (USA)
• Patent Number(s): US 5018486; A
• Application Number: PPN: US 7-534985
• OSTI ID: 5100126
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330600 -- Advanced Propulsion Systems-- Vehicle Design Factors
CONTROL EQUIPMENT
ENGINES
EQUIPMENT
FLOW REGULATORS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
PRESSURE GRADIENTS
RELIEF VALVES
VALVES