Patent US5063885A successfully refreshed from Google Patents.
US5063885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intake system for v-type engine
Assignee: Yamaha Motor Co Ltd
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Filing: 1990-08-14
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Granted: 1991-11-12
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Expires: 2010-08-14
Abstract
Abstract An improved high efficiency compact induction system for a V-type internal combustion engine that includes a plenum chamber that extends through the valley of the engine and a plurality of intake pipes that extend from the intake ports of the cylinders of one of the banks, across the valley and which enters the plenum chamber adjacent the intake ports of the other cylinder. A plurality of second intake pipes extend from the intake ports of the other cylinder, across the valley and enter the plenum chamber on the side adjacent the intake ports of the one cylinder bank. The points of entry of the intake pipes with the plenum chamber lie under the other intake pipes so as to provide adequate length for the intake pipes and maintain a relatively short overall length for the induction system.
Inventors
- 👤 Shinji Yoshioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/104; F02M35/116; F02B; F02B27/00; F02B27/005; F02B27/006; F02M35/10006; F02M35/10026; F02M35/10039; F02M35/10072; F02M35/10091; F02M35/10111; F02M35/10209; F02M35/10216; F02B75/00; F02B75/16; F02B75/18; F02B2075/1804; F02B2075/1824; F02B75/22; F02F; F02F2200/00; F02F2200/06; F02M35/1034; F02M35/10347; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
126 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinders defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, a first intake pipe extending from one of said intake ports of one of said cylinders into said valley and entering said plenum chamber on the side thereof adjacent the other of said cylinders, and a second intake pipe extending from the intake port of the other cylinder across said valley and entering said plenum chamber adjacent said one cylinder and under said first intake pipe, the entry of said first intake pipe into said plenum chamber lying under said second intake pipe.
Claim 2
Dependent Claim
126 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinders defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, a first intake pipe extending from one of said intake ports of one of said cylinders into said valley and entering said plenum chamber on the side thereof adjacent the other of said cylinders, and a second intake pipe extending from the intake port of the other cylinder across said valley and entering said plenum chamber adjacent said one cylinder and under said first intake pipe, the entry of said first intake pipe into said plenum chamber lying under said second intake pipe.
Claim 3
Dependent Claim
39 words
An induction system as set forth in claim 1 wherein the first and second intake pipes extend parallel to each other from their respective intake port across the valley and before the point of entry into the plenum chamber.
Claim 4
Dependent Claim
152 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinder banks, each having a plurality of cylinders, and defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, all of the cylinders of one bank being served by a plurality of first intake pipes extending from the intake ports of each of the cylinders of the one cylinder bank to the plenum chamber and entering the sides thereof adjacent the other cylinder bank and all of the cylinders of the cylinders of the other bank being served by a plurality of second intake pipes each extending from the intake ports of the other cylinder bank to said plenum chamber and entering the side thereof adjacent said one cylinder bank and under a respective one of said first intake pipes.
Claim 5
Dependent Claim
152 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinder banks, each having a plurality of cylinders, and defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, all of the cylinders of one bank being served by a plurality of first intake pipes extending from the intake ports of each of the cylinders of the one cylinder bank to the plenum chamber and entering the sides thereof adjacent the other cylinder bank and all of the cylinders of the cylinders of the other bank being served by a plurality of second intake pipes each extending from the intake ports of the other cylinder bank to said plenum chamber and entering the side thereof adjacent said one cylinder bank and under a respective one of said first intake pipes.
Claim 6
Dependent Claim
33 words
An induction system as set forth in claim 3 wherein there is positioned an engine accessory in the valley at one end of the engine and adjacent one end of the plenum chamber.
Claim 7
Dependent Claim
16 words
An induction system as set forth in claim 4 wherein the accessory comprises a water pump.
Claim 8
Dependent Claim
33 words
An induction system as set forth in claim 4 wherein the accessory comprises a throttle body containing a throttle valve for controlling the flow of air into the plenum chamber from the atmosphere.
Claim 9
Dependent Claim
35 words
An induction system as set forth in claim 4 wherein there are provided accessories for the engine at each end of the engine within the valley and adjacent the adjacent end of the plenum chamber.
Claim 10
Dependent Claim
21 words
An induction system as set forth in claim 7 wherein one of the accessories comprises a water pump for the engine.
Claim 11
Dependent Claim
33 words
An induction system as set forth in claim 7 wherein one of the accessories comprises a throttle body containing a throttle valve for controlling the flow of atmospheric air into the plenum chamber.
Claim 12
Dependent Claim
24 words
An induction system as set forth in claim 9 wherein the other accessory comprises a water pump for the cooling system of the engine.
Claim 13
Dependent Claim
138 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinders defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, a first intake pipe extending from one of said intake ports of one of said cylinders into said valley and entering said plenum chamber on the side thereof adjacent the other of said cylinders, and a second intake pipe extending from the intake port of the other cylinder across said valley and entering said plenum chamber adjacent said one cylinder and under said first intake pipe, said first and second intake pipes extending parallel to each other from their respective intake port across said valley and before the point of entry into said plenum chamber.
Claim 14
Dependent Claim
138 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinders defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, a first intake pipe extending from one of said intake ports of one of said cylinders into said valley and entering said plenum chamber on the side thereof adjacent the other of said cylinders, and a second intake pipe extending from the intake port of the other cylinder across said valley and entering said plenum chamber adjacent said one cylinder and under said first intake pipe, said first and second intake pipes extending parallel to each other from their respective intake port across said valley and before the point of entry into said plenum chamber.
Claim 15
Dependent Claim
81 words
An induction system as set forth in claim 11 wherein the cylinders define respective cylinder banks and wherein there are a plurality of cylinders formed in each of the cylinder banks, there being a plurality of first intake pipes extending from the intake ports of each of the cylinders of the one cylinder bank to the plenum chamber and a plurality of second intake pipes extending from the intake ports of the other cylinder bank to the plenum chamber as described.
Claim 16
Dependent Claim
33 words
An induction system as set forth in claim 12 wherein there is positioned an engine accessory in the valley at one end of the engine and adjacent one end of the plenum chamber.
Claim 17
Dependent Claim
16 words
An induction system as set forth in claim 13 wherein the accessory comprises a water pump.
Claim 18
Dependent Claim
33 words
An induction system as set forth in claim 13 wherein the accessory comprises a throttle body containing a throttle valve for controlling the flow of air into the plenum chamber from the atmosphere.
Claim 19
Dependent Claim
35 words
An induction system as set forth in claim 13 wherein there are provided accessories for the engine at each end of the engine within the valley and adjacent the adjacent end of the plenum chamber.
Claim 20
Dependent Claim
21 words
An induction system as set forth in claim 16 wherein one of the accessories comprises a water pump for the engine.
Claim 21
Dependent Claim
33 words
An induction system as set forth in claim 16 wherein one of the accessories comprises a throttle body containing a throttle valve for controlling the flow of atmospheric air into the plenum chamber.
Claim 22
Dependent Claim
24 words
An induction system as set forth in claim 18 wherein the other accessory comprises a water pump for the cooling system of the engine.
Claim 23
Dependent Claim
42 words
An induction system as set forth in claim 19 wherein the plenum chamber has a generally elliptical shape in transverse cross-sections formed by a pair of angular related upper surfaces through which the respective intake pipes enter and a curved lower surface.
Claim 24
Dependent Claim
141 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinders defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, a first intake pipe extending from one of said intake ports of one of said cylinders into said valley and entering said plenum chamber on the side thereof adjacent the other of said cylinders, and a second intake pipe extending from the intake port of the other cylinder across said valley and entering said plenum chamber adjacent said one cylinder and under said first intake pipe, said plenum chamber having a generally elliptical shape in transverse cross-sections formed by a pair of angular related upper surfaces through which the respective intake pipes enter and a curved lower surface.
Claim 25
Dependent Claim
141 words
An induction system for an internal combustion engine having a pair of angularly disposed cylinders defining a valley therebetween, a plenum chamber extending longitudinally of said engine and through said valley, each of said cylinders having an intake port extending adjacent said valley, a first intake pipe extending from one of said intake ports of one of said cylinders into said valley and entering said plenum chamber on the side thereof adjacent the other of said cylinders, and a second intake pipe extending from the intake port of the other cylinder across said valley and entering said plenum chamber adjacent said one cylinder and under said first intake pipe, said plenum chamber having a generally elliptical shape in transverse cross-sections formed by a pair of angular related upper surfaces through which the respective intake pipes enter and a curved lower surface.
Claim 26
Dependent Claim
39 words
An induction system as set forth in claim 3 wherein the first and second pipes lie in side by side relationship to each other along the length of the engine so that substantially no gap extends between adjacent pipes.
Claim 27
Dependent Claim
33 words
An induction system as set forth in claim 22 wherein the entry of each of the first intake pipes into the plenum chambers lies under a respective one of the second intake pipes.
Claim 28
Dependent Claim
39 words
An induction system as set forth in claim 22 wherein the first and second intake pipes extend parallel to each other from their respective intake port across the valley and before the point of entry into the plenum chamber.
Claim 29
Dependent Claim
39 words
An induction system as set forth in claim 23 wherein the first and second intake pipes extend parallel to each other from their respective intake port across the valley and before the point of entry into the plenum chamber.
Claim 30
Dependent Claim
33 words
An induction system as set forth in claim 22 wherein there is positioned an engine accessory in the valley at one end of the engine and adjacent one end of the plenum chamber.
Claim 31
Dependent Claim
16 words
An induction system as set forth in claim 26 wherein the accessory comprises a water pump.
Claim 32
Dependent Claim
33 words
An induction system as set forth in claim 26 wherein the accessory comprises a throttle body containing a throttle valve for controlling the flow of air into the plenum chamber from the atmosphere.
Claim 33
Dependent Claim
35 words
An induction system as set forth in claim 26 wherein there are provided accessories of the engine at each end of the engine within the valley and adjacent the adjacent end of the plenum chamber.
Claim 34
Dependent Claim
21 words
An induction system as set forth in claim 29 wherein one of the accessories comprises a water pump for the engine.
Claim 35
Dependent Claim
33 words
An induction system as set forth in claim 29 wherein one of the accessories comprises a throttle body containing a throttle valve for controlling the flow of atmospheric air into the plenum chamber.
Claim 36
Dependent Claim
24 words
An induction system as set forth in claim 31 wherein the other accessory comprises a water pump for the cooling system of the engine.
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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) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |