EP0344706A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Motor Vehicle
Assignee: Yamaha Motor Co Ltd
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Filing: 1989-05-30
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Granted: —
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Expires: 2009-05-30
Abstract
Abstract A motor vehicle having a transversely positioned engine in a forwardly disposed engine compartment. The exhaust manifold is formed rearwardly of the engine and supplies exhaust gases to a catalyzer so that the engine will shield the exhaust manifold and catalyzer from cooling air flow. An intake manifold extends forwardly from the engine and engine accessories are disposed beneath the intake manifold and forwardly of the cylinders of the engine so as to shield the occupants of the vehicle from the noise of the accessories. In addition, a crushable plenum chamber extends across the front of the intake manifold and forwardly of the accessories for silencing and also to absorb impacts. The crushability of the plenum chamber causes it to slow the engine on impact for further safety protection.
Inventors
- 👤 Kaoru Okui
- 👤 Manabu Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 13:33
CPC Classifications
B; B60; B60K; B60K13/00; B60K13/04; B60K5/00; B60K5/04; F; F02; F02B; F02B61/00; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F02B2075/1804; F02B2075/1824; F02B2275/00; F02B2275/18
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
104 words
In a motor vehicle having an engine compartment with a forward end disposed forwardly with respect to the normal direction of travel for said vehicle in a rearward end, an engine disposed transversely in said engine compartment, said engine including a cylinder arrangement having a plurality of rearwardly facing exhaust ports, an exhaust manifold affixed to said cylinder arrangement rearwardly thereof for collecting the exhaust gases from said exhaust ports and shielded from the air flowing through said engine compartment by said cylinder arrangement, and an exhaust catalyzer positioned in proximity to said exhaust manifold for receiving and catalyzing the exhaust gases flowing therefrom.
Claim 2
Dependent Claim
104 words
In a motor vehicle having an engine compartment with a forward end disposed forwardly with respect to the normal direction of travel for said vehicle in a rearward end, an engine disposed transversely in said engine compartment, said engine including a cylinder arrangement having a plurality of rearwardly facing exhaust ports, an exhaust manifold affixed to said cylinder arrangement rearwardly thereof for collecting the exhaust gases from said exhaust ports and shielded from the air flowing through said engine compartment by said cylinder arrangement, and an exhaust catalyzer positioned in proximity to said exhaust manifold for receiving and catalyzing the exhaust gases flowing therefrom.
Claim 3
Dependent Claim
18 words
In a motor vehicle as set forth in claim 1 wherein the cylinders are aligned and rearwardly inclined.
Claim 4
Dependent Claim
24 words
In a motor vehicle as set forth in claim 2 wherein the exhaust manifold lies at least in part beneath the rearwardly inclined cylinders.
Claim 5
Dependent Claim
29 words
In a motor vehicle as set forth in claim 1 wherein the engine is provided with an intake manifold that extends forwardly from the engine toward the air inlet.
Claim 6
Dependent Claim
38 words
In a motor vehicle as set forth in claim 4 wherein the intake manifold includes a crushable section adapted to be crushed upon forward impact and restrict the flow of air into the engine for slowing the engine.
Claim 7
Dependent Claim
34 words
In a motor vehicle as set forth in claim 4 further including a plurality of accessories driven by the engine and disposed forwardly of the cylinder arrangement and beneath the intake manifold for silencing.
Claim 8
Dependent Claim
38 words
In a motor vehicle as set forth in claim 6 wherein the intake manifold includes a crushable section adapted to be crushed upon forward impact and restrict the flow of air into the engine for slowing the engine.
Claim 9
Dependent Claim
88 words
In a motor vehicle having a forwardly positioned engine compartment, an engine disposed transversely across said engine compartment, the improvement comprising an induction system for said engine including an intake manifold for said engine extending forwardly therefrom and a plenum device at the forward end of said engine for supplying air to said intake manifold, said plenum device being formed of a crushable material to absorb forces on vehicle front end impacts and for restricting the flow to said intake manifold under such conditions to reduce engine speed.
Claim 10
Dependent Claim
88 words
In a motor vehicle having a forwardly positioned engine compartment, an engine disposed transversely across said engine compartment, the improvement comprising an induction system for said engine including an intake manifold for said engine extending forwardly therefrom and a plenum device at the forward end of said engine for supplying air to said intake manifold, said plenum device being formed of a crushable material to absorb forces on vehicle front end impacts and for restricting the flow to said intake manifold under such conditions to reduce engine speed.
Claim 11
Dependent Claim
34 words
In a motor vehicle as set forth in claim 8 further including a plurality of accessories driven by the engine and disposed forwardly of the cylinder arrangement and beneath the intake manifold for silencing.
Claim 12
Dependent Claim
31 words
In a motor vehicle as set forth in claim 9 wherein the plenum device extends transversely across the front of the engine and is positioned forwardly of the engine driven accessories.
Claim 13
Dependent Claim
85 words
In a motor vehicle having a passenger compartment, and engine compartment adjacent said passenger compartment, an engine extending transversely across said engine compartment, an manifold for said engine extending from a side of said engine spaced from said passenger compartment forwardly, the improvement comprising engine accessories driven by said engine and sheltered from said passenger compartment by said engine and said manifold, said manifold extending substantially continuously across its width for directing noises generated by said engine accessories downwardly and away from said passenger compartment.
Claim 14
Dependent Claim
85 words
In a motor vehicle having a passenger compartment, and engine compartment adjacent said passenger compartment, an engine extending transversely across said engine compartment, an manifold for said engine extending from a side of said engine spaced from said passenger compartment forwardly, the improvement comprising engine accessories driven by said engine and sheltered from said passenger compartment by said engine and said manifold, said manifold extending substantially continuously across its width for directing noises generated by said engine accessories downwardly and away from said passenger compartment.
Claim 15
Dependent Claim
17 words
In a motor vehicle as set forth in claim 11 wherein the manifold comprises an intake manifold.
Claim 16
Dependent Claim
30 words
In a motor vehicle as set forth in claim 12 further including a plenum chamber extending transversely across the front of the engine and supplying air to the intake manifold.
Claim 17
Dependent Claim
24 words
In a motor vehicle as set forth in claim 13 wherein the plenum chamber is crushable and is disposed forwardly of the engine accessories.
References Cited (Backward Citations)
No citation records indexed.
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