Vehicle with a deflecting device forming a front air screen

A vehicle intended to travel at subsonic speed, comprising:

• means defining at least one front place for at least one occupant with a standard zone in which the eyes are situated and which is inscribed between a lower horizontal plane and an upper horizontal plane, said means being open forward of said standard zone,
• an air deflecting device comprising a deflecting surface attached, in front of a front place, to a front portion of said vehicle receiving a relative air current when said vehicle is moving, said deflecting surface:
• extending overall at least essentially in the transverse direction of said vehicle,
• having a concave profile, with a concavity facing forwards,
• having a trailing edge directed upwards, so that at least a substantial fraction of said relative air current escapes above said upper trailing edge of said deflecting surface, wherein:
• said air deflecting device further comprises at least one wing having a thick curved, generally concave profile which is determined as a fixed deflecting vane, with a concavity facing forwards, a concave intrados and a convex extrados, said at least one wing defining a furthest upstream leading edge and a furthest downstream trailing edge,
• said at least one wing being attached to said vehicle and extending in said relative air current immediately upstream, opposite and adjacent to said deflecting surface,
• said furthest upstream leading edge of said at least one wing extends facing at a distance above said deflecting surface,
• said furthest downstream trailing edge of said at least one wing extends at least essentially forwards and facing at a distance towards said deflecting surface,
• said trailing edge of said deflecting surface is directed at least essentially vertically,
• said air deflecting device is disposed below said lower horizonal plane of said standard zone,
• the distance between said furthest upstream leading edge of said at least one wing and said deflecting surface is less than the distance between said furthest downstream trailing edge of said at least one wing and said trailing edge of said deflecting surface,
• said deflecting surface and said at least one wing are adapted to form an air flow which is deflected upwards and flows upwards in a laminar regime in front of said standard zone and above said upper horizontal plane with sufficient energy to deflect said substantial fraction of said relative air current above said standard zone in which the air is at least essentially still.

A vehicle intended to travel at subsonic speed, comprising:

• means defining at least one front place for at least one occupant with a standard zone in which the eyes are situated and which is inscribed between a lower horizontal plane and an upper horizontal plane, and with a normal field of vision, said means being open forward of said standard zone,
• an air deflecting device comprising a deflecting surface attached, in front of a front place, to a front portion of said vehicle receiving a relative air current when said vehicle is moving, said deflecting surface:
• extending overall at least essentially in the transverse direction of said vehicle,
• having a concave profile, with a concavity facing forwards,
• having a trailing edge directed upwards, so that at least a substantial fraction of said relative air current escapes above said upper trailing edge of said deflecting surface, wherein:
• said air deflecting device further comprises at least one wing having a thick curved, generally concave profile which is determined as a fixed deflecting vane, with a concavity facing forwards, a concave intrados and a convex extrados, said at least one wing defining a furthest upstream leading edge and a furthest downstream trailing edge,
• said at least one wing being attached to said vehicle and extending in said relative air current immediately upstream, opposite and adjacent to said deflecting surface,
• said furthest upstream leading edge of said at least one wing extends facing at a distance above said deflecting surface,
• said furthest downstream trailing edge of said at least one wing extends at least essentially forwards and facing at a distance towards said deflecting surface,
• said trailing edge of said deflecting surface is directed at least essentially vertically,
• said air deflecting device is disposed below said lower horizontal plane of said standard zone,
• said air deflecting device is disposed under a plane, called the lower limit of the normal field of vision corresponding to said front place, passing through said standard zone and being tangential to said front portion of said vehicle,
• said deflecting surface and at least one wing are adapted to form an air flow which is deflected upwards and flows upwards in a laminar regime in front of said standard zone and above said upper horizontal plane, with sufficient energy to deflect said substantial fraction of said relative air current above said standard zone in which the air is at least essentially still,
• said vehicle has no windscreen in the front.

A vehicle intended to travel at subsonic speed, comprising:

• means defining at least one front place for at least one occupant with a standard zone in which the eyes are situated and which is inscribed between a lower horizontal plane and an upper horizontal plane, said means being open forward of said standard zone,
• an air deflecting device comprising a deflecting surface attached, in front of a front place, to a front portion of said vehicle receiving a relative air current when said vehicle is moving, said deflecting surface:
• extending overall at least essentially in the transverse direction of said vehicle,
• comprising a front connecting part attached in the rearwards extension of said front portion,
• being profiled with a concave profile, with a concavity facing forwards,
• having a trailing edge directed upwards, so that at least a substantial fraction of said relative air current escapes above said upper trailing edge of said deflecting surface, wherein:
• said air deflecting device further comprises at least one wing having a curved, generally concave profile with a concavity facing forwards, said at least one wing defining a furthest upstream leading edge and a furthest downstream trailing edge,
• said at least one wing being attached to said vehicle and extending in said relative air current immediately upstream, opposite and adjacent to said deflecting surface,
• said furthest upstream leading edge of said at least one wing extends facing at a distance above said front connecting part of said deflecting surface,
• said furthest downstream trailing edge of said at least one wing extends at least essentially forwards and facing at a distance towards said trailing edge of said deflecting surface,
• said air deflecting device is disposed below said lower horizontal plane of said standard zone,
• the distance between said furthest upstream leading edge of said at least one wing and said deflecting surface is less than the distance between said furthest downstream trailing edge of said at least one wing and said deflecting surface,
• said deflecting surface and at least one wing are adapted to form an air flow which is deflected upwards and flows upwards in a laminar regime in front of said standard zone and above said upper horizontal plane, with sufficient energy to deflect said substantial fraction of said relative air current above said standard zone, in which the air is at least essentially still.

A vehicle intended to travel at subsonic speed, comprising means defining at least one front place for at least one occupant with a standard zone in which the eyes are situated, said means being open forward of said standard zone, wherein said vehicle comprises an air deflecting device comprising a deflecting surface and at least one wing, and wherein:

• said deflecting surface is attached to said vehicle in front of said front place and extends overall at least substantially in the transverse direction of said vehicle so as to receive a relative air current when said vehicle is moving,
• said deflecting surface has a concave shape with a concavity facing forward and an upper trailing edge directed upwards,
• said deflecting surface is attached to a front portion of said vehicle receiving said relative air current and extends in a rearwards extension of said front portion, so that at least a substantial fraction of said relative air current escapes above said trailing edge of said deflecting surface behind which the air is essentially still,
• each said wing is attached to said vehicle and extends in said relative air current immediately upstream, opposite and adjacent to said deflecting surface,
• said air deflecting surface and each said wing are disposed below a lower horizontal plane passing through said standard zone,
• said air deflecting device is adapted to form an air flow deflected upwards and adapted to act as an air screen in front of said standard zone, in which the air is at least essentially still,
• said air deflecting device comprises an upper shield overlapping said deflecting surface and said at least one wing.