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US 3,945,201 AGranted
Marine jet drive shift control apparatus
AssigneeBrunswick Corporation
InventorDavid C. Entringer
Life of this patent
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AssigneeBrunswick Corporation
InventorDavid C. Entringer
Estimating the term…
A marine jet drive unit includes a continuously running pump. A reversing gate is positioned partially or wholly within the forward jet to establish a corresponding reverse jet. For neutral drive, the gate is positioned such that the reverse jet just balances the forward jet. A remote shift control unit includes a detent means for locating and holding a rotatable shift lever in neutral. The detent means includes a pair of detent pins carried by a plate which is connected to a support wall by a slot and bolt lost motion connection. The pins are located to opposite sides of the lever and the connection permits angular adjustment about the pivot axis of the lever. The plate supports the detent pin in alignment with a circular outer periphery of the lever plate having oppositely located radial detent grooves. The lever is connected by a push-pull cable to the gate. The precise neutral position of the lever may vary for different drive units. The lever and gate are positioned to establish neutral setting for the particular engine-pump unit. The detent plate is then adjusted to align the detent pins with the grooves and the bolts drawn up to lock the detent plate in a fixed neutral position.
A remote shift control assembly for a marine jet drive system having a diverting control element including movable input means for adjustably positioning thereof, comprising a support means, a moveable shift means moveably mounted to said support means and having means adapted to be coupled to said moveable input means for moving the input means from an initial position, a releasable holding means having interacting elements secured to said moveable shift means and said support means and establishing a releasable holding of said moveable shift means in the initial position, at least one of said interacting elements being moveable in a path parallel to the element secured to the moveable shift means to permit setting of the interacting elements in any one of a plurality of initial positions of said shift means, and releasable locking means to hold the moveable interacting element in said adjusted position.
A remote shift control assembly for a marine jet drive system having a jet diverting means for diverting the output of a jet pump means between a forward jet forming drive means and a reverse jet forming drive means and having a coupling means connected to said jet diverting means and a linkage for adjustably positioning thereof, comprising a support means, a moveable shift element moveably mounted to said support means and coupled to said linkage to shift said coupling means, said moveable shift element being oppositely moveable from a neutral position to affect a forward drive and a reverse drive setting of the jet diverting means, a releasable holding means secured to said moveable shift element and said support means and establishing a releasable holding of said moveable shift element in the neutral position, said moveable holding means being movable with said shift element for corresponding setting in any one of a plurality of possible neutral positions, and releasable locking means to lock the releasable holding means in any one of said neutral settings.
In a remote shift control assembly for a marine jet drive system having a diverting gate for diverting the output of a jet pump means between a forward jet forming drive means and a reverse jet forming drive means, comprising a mechanical coupling means having a push-pull element connected to said jet diverting maeans for adjustably positioning thereof, support means, a shift lever rotatably mounted to said support means and coupled to the opposite end of said push-pull element, of said coupling means, to shift said moveable shift lever being oppositely moveable from a neutral position to affect a forward drive and a reverse drive setting of the gate, said lever including a circular coaxial plate, a detent means including a recess formed in said plate and a pin means attached to said support means and establishing a releasable holding of said moveable element in the neutral position, said pin means being moveable in a path parallel to the recess means of the lever plate to permit setting of the detent means in any one of a plurality of possible neutral positions of said lever, and releasable locking means to hold the pin means in said adjusted position.
Dependencies are inferred from the claim text.