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US 8,387,480 B2Granted
Scissors gear
AssigneesKia Motors Corporation, Hyundai Motor Company
InventorByungok Park
Life of this patent
Estimating the term…
Abstract
A scissors gear may include a main gear and a sub-gear co-axially combined by a scissors spring therebetween to integrally rotate, a first oil supply hole formed in the main gear or the sub-gear to supply oil from the outside, an oil groove formed in the sub-gear or the main gear to receive the oil by being selectively communicated with the first oil supply hole, and a check valve that is disposed in the main gear or the sub-gear to open/close the oil groove.
Claims14
A scissors gear comprising:
- a main gear and a sub-gear co-axially combined by a scissors spring therebetween to integrally rotate;
- a first oil supply hole formed in the main gear or the sub-gear to supply oil from the outside;
- an oil groove formed in the sub-gear or the main gear to receive the oil by being selectively communicated with the first oil supply hole;
- and
- a check valve that is disposed in the main gear or the sub-gear to open/close the oil groove;
- wherein the check valve is disposed to be biased against the oil groove by an elastic member;
- wherein the check valve has an upward slope portion that opens the oil groove while the check valve is pushed upward by a first oil pressure supplied from the first oil supply hole, the first oil pressure occurring by a movement of the sub-gear so as for the first oil supply hole to be communicated with the oil groove;
- and
- wherein the check valve has a downward slope portion that closes the oil groove while the check valve is pressed downward by a second oil pressure in the oil groove, the second oil pressure occurring by a movement of the sub-gear so as for the first oil supply hole to not be communicated with the oil groove.
6 more elements
A scissors gear comprising:
- a main gear and a sub-gear that are co-axially combined by a scissors spring to integrally rotate;
- a first oil supply hole formed in the main gear or the sub-gear to supply oil from the outside;
- an oil groove formed in the sub-gear or the main gear to receive the oil by being selectively communicated with the first oil supply hole;
- and
- a check valve that is disposed in the main gear or the sub-gear to open/close the oil groove and to be biased against the oil groove via an elastic member;
- wherein the check valve has an upward slope portion that opens the oil groove while the check valve is pushed upward by a first oil pressure supplied from the first oil supply hole, the first oil pressure occurring by a movement of the sub-gear so as for the first oil supply hole to be communicated with the oil groove;
- and
- wherein the check valve has a downward slope portion that closes the oil groove while the check valve is pressed downward by a second oil pressure in the oil groove, the second oil pressure occurring by a movement of the sub-gear so as for the first oil supply hole to not be communicated with the oil groove.
5 more elements
Dependencies are inferred from the claim text.