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US 5,509,863 AGranted
Transmission device, especially for boat motors
AssigneeAB Volvo Penta
InventorsStaffan M.ang.nsson, Benny Hedlund
Life of this patent
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AssigneeAB Volvo Penta
InventorsStaffan M.ang.nsson, Benny Hedlund
Estimating the term…
Transmission for boats, comprising an input shaft (2), a reversing mechanism and an output shaft (3). The reversing mechanism is comprised by a right angled bevel gearing with two bevel gears (7, 8), which are freely rotatably mounted on an intermediate shaft (4) and engaged with a bevel gear (6) on the input shaft. The bevel gears (7, 8) each cooperate with an individual clutch (13, 14) respectively, by which one of the bevel gears can be locked to the intermediate shaft. The clutches (13, 14) are placed outside the bevel gearing, i.e. on the sides of the bevel gears (7, 8) facing away from each other in order to place the bevel gears (7, 8) close to each other. The clutches are wet clutches compressible by a piston (19) that moves in a cylinder (20) which in turn communicates with a hydraulic pump (22) driven by one of the input and intermediate shafts (2, 4). The output shaft (3) is driven by a bevel gear (12) having a recess in which one (14) of the clutches is partially received. The axis of the output shaft (3) intersects the axis of the intermediate shaft (4) at a point encircled by that latter clutch (14).
In a transmission device in an outboard drive unit for boats, comprising a first shaft having a first bevel gear wheel non-rotatably fixed on the shaft and a second shaft the rotational axis of which intersects the rotational axis of the first shaft and having two bevel gear wheels rotatably journalled on the second shaft and lockable on the second shaft by means of clutch means, said two gear wheels meshing with the first gear wheel, one of said shafts being an input shaft adapted to be connected to an engine, the other shaft being an intermediate shaft having a gear wheel meshing with a gear wheel on an output shaft;
In a transmission device in an outboard drive unit for boats, comprising a first shaft having a first conical gear wheel non-rotatably fixed on the shaft and a second shaft the rotational axis of which intersects the rotational axis of the first shaft and having two conical wheel gears rotatably journalled on the second shaft and lockable on the second shaft by means of clutch means, said two gear wheels meshing with the first gear wheel, one of said shafts being an input shaft adapted to be connected to an engine, the other shaft being an intermediate shaft having a gear wheel meshing with a gear wheel on an output shaft;
In a transmission device in an outboard drive unit for boats, comprising a first shaft having a first bevel gear wheel non-rotatably fixed on the shaft and a second shaft the rotational axis of which intersects the rotational axis of the first shaft and having two bevel wheel gears rotatably journalled on the second shaft and lockable on the second shaft by means of clutch means, said two gear wheels meshing with the first gear wheel, one of said shafts being an input shaft adapted to be connected to an engine, the other shaft being an intermediate shaft having a gear wheel meshing with a gear wheel on an output shaft;
Dependencies are inferred from the claim text.