US5009199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intake reservoir for an engine having a check valve
Assignee: Motors Liquidation Co
•
Filing: 1990-06-08
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Granted: 1991-04-23
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Expires: 2010-06-08
Abstract
Abstract An intake reservoir for an engine having an intake passage leading to a cylinder, and a check valve in the intake passage to allow fluid flow toward the cylinder and obstruct fluid back-flow in the reverse direction. An intake valve is seated in the intake passage between the check valve and cylinder. A bypass port is located on the intake passage so that the bypass port communicates with a trapped volume defined by the portion of the intake passage between the check valve and intake valve. The intake reservoir comprises a reservoir cavity having a single cavity port, and a port passage connected between the cavity port and the bypass port enabling fluid flow between the trapped volume and the reservoir cavity. The intake reservoir further comprises a control valve connected to the port passage enabling active adjustment of the flow area of the port passage throughout a range of engine operating conditions to regulate fluid flow between the trapped volume and reservoir cavity.
Inventors
- 👤 Glen R. Macfarlane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:50
CPC Classifications
F; F02; F02B; F02B21/00; F02B27/00; F02B27/003; F02M; F02M26/00; F02M26/01; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
158 words
An intake reservoir 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, an intake valve seated in the intake passage between the check valve and cylinder, and a bypass port located on the intake passage so that the bypass port communicates with a trapped volume defined by the portion of the intake passage between the check valve and intake valve, the intake reservoir comprising a reservoir cavity having a single cavity port, a port passage connected between said cavity port and the bypass port enabling fluid flow between the trapped volume and said reservoir cavity, and a control valve connected to said port passage enabling active adjustment of the flow area of said port passage throughout a range of engine operating conditions to regulate fluid flow between the trapped volume and said reservoir cavity.
Claim 2
Dependent Claim
158 words
An intake reservoir 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, an intake valve seated in the intake passage between the check valve and cylinder, and a bypass port located on the intake passage so that the bypass port communicates with a trapped volume defined by the portion of the intake passage between the check valve and intake valve, the intake reservoir comprising a reservoir cavity having a single cavity port, a port passage connected between said cavity port and the bypass port enabling fluid flow between the trapped volume and said reservoir cavity, and a control valve connected to said port passage enabling active adjustment of the flow area of said port passage throughout a range of engine operating conditions to regulate fluid flow between the trapped volume and said reservoir cavity.
Claim 3
Dependent Claim
60 words
An intake reservoir as set forth in claim 1 in combination with an intake valve seated int he intake passage between the check valve and cylinder, said intake valve being open during at least a portion of the period when exhaust gas is exhausted from the cylinder so that exhaust gas flows from the cylinder back into the trapped volume.
Claim 4
Dependent Claim
192 words
An intake reservoir 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, an intake valve seated in the intake passage between the check valve and cylinder, the intake valve being open during at least a portion of the period when exhaust gas is exhausted from the cylinder so that exhaust gas flows from the cylinder back into the intake passage, and a bypass port located on the jintake passage so that the bypass port communicates with a trapped volume defined by the portion of the intake passage between the check valve and intake valve, the intake reservoir comprising a reservoir cavity having a single cavity port, a port passage connected between said cavity port and the bypass port enabling fluid flow between the trapped volume and said reservoir cavity, and a control valve connected to said port passage enabling active adjustment of the flow area of said port passage throughout a range of engine operating conditions to regulate fluid flow between the trapped volume and said reservoir cavity.
Claim 5
Dependent Claim
192 words
An intake reservoir 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, an intake valve seated in the intake passage between the check valve and cylinder, the intake valve being open during at least a portion of the period when exhaust gas is exhausted from the cylinder so that exhaust gas flows from the cylinder back into the intake passage, and a bypass port located on the jintake passage so that the bypass port communicates with a trapped volume defined by the portion of the intake passage between the check valve and intake valve, the intake reservoir comprising a reservoir cavity having a single cavity port, a port passage connected between said cavity port and the bypass port enabling fluid flow between the trapped volume and said reservoir cavity, and a control valve connected to said port passage enabling active adjustment of the flow area of said port passage throughout a range of engine operating conditions to regulate fluid flow between the trapped volume and said reservoir cavity.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |