Abstract: In a reciprocating engine piston, added equipment to renew the piston pin's oil film once per crankshaft rotation. The equipment is located between the connecting rod's small end and the underside of the piston crown. There is a plunger carrier with a plunger, and a saddle with a plunger bore. The saddle closely straddles the plunger carrier, maintaining the alignment of the arcuate plunger with the arcuate plunger bore, for a plunger stroke without friction. The small end's natural oscillation during crankshaft rotation powers the plunger's working cycle. There is an oil-filling stroke and a delivery stroke. The delivery is to the saddle's top, which is just below the piston crown. The oil pressure pushes upward on the piston crown, lifting the piston slightly and the piston pin bosses off the piston pin. In the small gap thus created, new oil can enter, recreating the oil film.

Abstract: In a reciprocating engine piston, added equipment to renew the piston pin's oil film once per crankshaft rotation. The equipment is located between the connecting rod's small end and the underside of the piston crown. There is a plunger carrier with a plunger, and a saddle with a plunger bore. The saddle closely straddles the plunger carrier, maintaining the alignment of the arcuate plunger with the arcuate plunger bore, for a plunger stroke without friction. The small end's natural oscillation during crankshaft rotation powers the plunger's working cycle. There is an oil-filling stroke and a delivery stroke. The delivery is to the saddle's top, which is just below the piston crown. The oil pressure pushes upward on the piston crown, lifting the piston slightly and the piston pin bosses off the piston pin. In the small gap thus created, new oil can enter, recreating the oil film.

Abstract: A supersonic aircraft design using compression lift for enhanced cruise performance. Each engine nacelle at mid-span has a vertical wedge at the nose which creates shock waves under the wings. The increased pressure behind the shock waves pushes up on the wings, creating compression lift. The second part of the process is trapping the shocks by some vertical surfaces. The inboard shocks are intercepted by a keel under the fuselage. This causes the reflected shock effect, which increases compression lift. The keel is just wide enough to store the main landing gear's wheel bogies one behind the other. One strut carrying a wheel bogie retracts upward and forward. The other strut retracts upward and backward. This allows tandem bogie storage in the narrow keel, which reduces drag. Outboard shocks are trapped by wingtip fins with pointed noses to reduce shock interference at the point of shock trapping.

Abstract: A supersonic aircraft design using compression lift for enhanced cruise performance. Each engine nacelle at mid-span has a vertical wedge at the nose which creates shock waves under the wings. The increased pressure behind the shock waves pushes up on the wings, creating compression lift. The second part of the process is trapping the shocks by some vertical surfaces. The inboard shocks are intercepted by a keel under the fuselage. This causes the reflected shock effect, which increases compression lift. The keel is just wide enough to store the main landing gear's wheel bogies one behind the other. One strut carrying a wheel bogie retracts upward and forward. The other strut retracts upward and backward. This allows tandem bogie storage in the narrow keel, which reduces drag. Outboard shocks are trapped by wingtip fins with pointed noses to reduce shock interference at the point of shock trapping.

Abstract: A utility vehicle with underfloor structure giving protection from mine explosions. There is a wedge at the edge of the driver compartment which splits the detonation blast from a mine buried in the track of a front wheel. There is a multilayer stack, inboard of the wedge, which crushes upward to reduce the detonation wave from a mine buried under the vehicle. The stack comprises panels to catch the detonation wave and separated by spacers. Spacers are longitudinal stringers stacked above each other and welded, forming deep beams joined to bulkheads, making the vehicle's frame. The wedge also bolts to bulkheads, augmenting the frame. In cross section, the stack is curved, tapering off at each end to merge with the “V” of a wedge. The wedge crushes sideways under the detonation wave, providing protection at the edge of the driver compartment where stack material has run out.

Abstract: A utility vehicle with underfloor structure giving protection from mine explosions. There is a wedge at the edge of the driver compartment which splits the detonation blast from a mine buried in the track of a front wheel. There is a multilayer stack, inboard of the wedge, which crushes upward to reduce the detonation wave from a mine buried under the vehicle. The stack comprises panels to catch the detonation wave and separated by spacers. Spacers are longitudinal stringers stacked above each other and welded, forming deep beams joined to bulkheads, making the vehicle's frame. The wedge also bolts to bulkheads, augmenting the frame. In cross section, the stack is curved, tapering off at each end to merge with the “V” of a wedge. The wedge crushes sideways under the detonation wave, providing protection at the edge of the driver compartment where stack material has run out.